Taxa without images

family: at least as common as: anything waif rare uncommon common region: Anywhere NE Carolinas + Georgia Florida Mississippi, Alabama, Tennessee West Omit sp. nov. (numbered species without final names yet): Omit subspecies and varieties: Omit hybrids: Omit taxa with only non-commerical images: Omit taxa more than this many images:
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1510 taxa lack photos entirely

Family	Taxon	Region	Most common status
Poaceae	×Elyhordeum macounii		questionable
Osmundaceae	×Osmunimunda ruggii		rare
Rosaceae	×Sorbaronia mitschurinii		rarer than rare
Malvaceae	Abutilon abutiloides		uncommon
Malvaceae	Abutilon berlandieri		common
Malvaceae	Abutilon hypoleucum		rare
Malvaceae	Abutilon trisulcatum		rare
Malvaceae	Abutilon wrightii		common
Fabaceae	Acacia retinodes		rarer than rare
Fabaceae	Acacia saligna		rarer than rare
Sapindaceae	Acer ×freemanii		uncommon
Aceraceae	Acer saccharum		common
Polygonaceae	Acetosa bucephalophora		rarer than rare
Ranunculaceae	Aconitum fischeri		rarer than rare
Actinidiaceae	Actinidia kolomikta		rarer than rare
Pteridaceae	Adiantum macrophyllum		historical
Pteridaceae	Adiantum villosum		historical
Lamiaceae	Aegiphila elata		rarer than rare
Fabaceae	Aeschynomene fluitans		rarer than rare
Fabaceae	Aeschynomene pratensis var. pratensis		rare
Orobanchaceae	Agalinis caddoensis		historical
Orobanchaceae	Agalinis edwardsiana		rare
Orobanchaceae	Agalinis maritima var. maritima		uncommon
Orobanchaceae	Agalinis paupercula var. borealis		rare
Orobanchaceae	Agalinis species 1		rare
Agavaceae	Agave asperrima ssp. asperrima		rare
Agavaceae	Agave lophantha		rare
Poaceae	Agrostis altissima		rare
Nartheciaceae	Aletris ×tottenii		rare
Fabaceae	Alhagi maurorum		questionable
Chenopodiaceae	Allenrolfea occidentalis		historical
Alliaceae	Allium elmendorfii		rare
Alliaceae	Allium moly		rarer than rare
Alliaceae	Allium schoenoprasum var. sibiricum		rarer than rare
Alliaceae	Allium scorodoprasum		rarer than rare
Alliaceae	Allium species 3 [=ecristatum]		uncommon
Berberidaceae	Alloberberis swaseyi		rare
Poaceae	Allolepis texana		rare
Poaceae	Alloteropsis cimicina		rarer than rare
Poaceae	Alopecurus bulbosus		rarer than rare
Poaceae	Alopecurus creticus		rarer than rare
Fabaceae	Alysicarpus glumaceus		rarer than rare
Amaranthaceae	Amaranthus acanthochiton		rare
Amaranthaceae	Amaranthus crispus		rarer than rare
Amaranthaceae	Amaranthus scleropoides		common
Amaranthaceae	Amaranthus tamaulipensis		rare
Asteraceae	Ambrosia ×intergradiens		rare
Asteraceae	Ambrosia confertiflora		uncommon
Asteraceae	Ambrosia tenuifolia		rarer than rare
Asteraceae	Ambrosia tomentosa		rarer than rare
Asteraceae	Ambrosia trifida		common
Poaceae	Amelichloa clandestina		rare
Fabaceae	Amorpha laevigata		rare
Poaceae	Amphibromus scabrivalvis var. scabrivalvis		rare
Poaceae	Anatherum species 2		rare
Malvaceae	Anoda pentaschista		rare
Rosaceae	Aphanes arvensis		rarer than rare
Asteraceae	Aphanostephus pilosus		rare
Asteraceae	Aphanostephus riddellii		common
Asteraceae	Aphanostephus skirrhobasis var. kidderi		common
Asteraceae	Aphanostephus skirrhobasis var. thalassius		common
Orobanchaceae	Aphyllon multiflorum		uncommon
Brassicaceae	Arabis caucasica		rarer than rare
Papaveraceae	Argemone aenea		uncommon
Papaveraceae	Argemone squarrosa ssp. glabrata		rare
Euphorbiaceae	Argythamnia aphoroides		rare
Euphorbiaceae	Argythamnia pilosissima		rare
Euphorbiaceae	Argythamnia serrata		rare
Euphorbiaceae	Argythamnia simulans		rare
Araceae	Arisaema allegheniense		uncommon
Araceae	Arisaema calciphilum		common
Araceae	Arisaema striatum		common
Poaceae	Aristida havardii		questionable
Aristolochiaceae	Aristolochia fimbriata		rarer than rare
Asteraceae	Artemisia carruthii		rare
Apocynaceae	Asclepias tonkawae		rare
Annonaceae	Asimina ×bethanyensis		rare
Annonaceae	Asimina ×colorata		rare
Annonaceae	Asimina ×kralii		rare
Annonaceae	Asimina ×nashii		uncommon
Annonaceae	Asimina ×obreticulata		rare
Annonaceae	Asimina ×peninsularis		rare
Annonaceae	Asimina ×piedmontana		rare
Asparagaceae	Asparagus asparagoides		rarer than rare
Rubiaceae	Asperula arvensis		rarer than rare
Asphodelaceae	Asphodelus fistulosus		rarer than rare
Aspleniaceae	Asplenium ×alternifolium		rare
Aspleniaceae	Asplenium ×boydstoniae		rare
Aspleniaceae	Asplenium ×clermontiae		rare
Aspleniaceae	Asplenium ×gravesii		rare
Aspleniaceae	Asplenium ×herb-wagneri		rare
Aspleniaceae	Asplenium ×inexpectatum		rare
Aspleniaceae	Asplenium ×kentuckiense		rare
Aspleniaceae	Asplenium ×morganii		rare
Aspleniaceae	Asplenium ×shawneense		rare
Aspleniaceae	Asplenium ×virginicum		rare
Aspleniaceae	Asplenium ×wherryi		rare
Aspleniaceae	Asplenium daucifolium		rarer than rare
Saxifragaceae	Astilbe crenatiloba		historical
Fabaceae	Astragalus austrinus var. trichocarpus		common
Fabaceae	Astragalus brazoensis		uncommon
Fabaceae	Astragalus chinensis		rarer than rare
Fabaceae	Astragalus emoryanus var. emoryanus		rare
Fabaceae	Astragalus gracilis		rare
Fabaceae	Astragalus lindheimeri		common
Fabaceae	Astragalus macilentus		rare
Fabaceae	Astragalus missouriensis var. missouriensis		rare
Fabaceae	Astragalus nuttallianus var. zapatanus		rare
Fabaceae	Astragalus plattensis		common
Fabaceae	Astragalus pleianthus		uncommon
Fabaceae	Astragalus racemosus var. racemosus		rare
Fabaceae	Astragalus reflexus		rare
Fabaceae	Astragalus wrightii		rare
Chenopodiaceae	Atriplex acanthocarpa ssp. coahuilensis		rare
Chenopodiaceae	Atriplex argentea var. argentea		rarer than rare
Chenopodiaceae	Atriplex argentea var. expansa		rare
Chenopodiaceae	Atriplex klebergorum		rare
Chenopodiaceae	Atriplex lampa		rarer than rare
Orobanchaceae	Aureolaria calycosa		uncommon
Orobanchaceae	Aureolaria grandiflora var. grandiflora		rare
Malvaceae	Ayenia limitaris		rare
Malvaceae	Ayenia pilosa		uncommon
Salviniaceae	Azolla pinnata ssp. asiatica		rarer than rare
Asteraceae	Baccharis salicina		uncommon
Asteraceae	Baccharis texana		common
Asteraceae	Baccharis wrightii		rare
Brassicaceae	Barbarea stricta		rarer than rare
Asteraceae	Berlandiera humilis		rare
Asteraceae	Berlandiera pumila var. scabrella		common
Apiaceae	Berula incisa		rare
Asteraceae	Boltonia asteroides var. latisquama		common
Linderniaceae	Bonnaya antipoda		rarer than rare
Linderniaceae	Bonnaya ciliata		rarer than rare
Asteraceae	Borrichia ×cubana		rare
Poaceae	Bothriochloa exaristata		uncommon
Poaceae	Bothriochloa glabra		rarer than rare
Poaceae	Bouteloua dimorpha		rarer than rare
Malvaceae	Brachychiton populneus		rarer than rare
Poaceae	Brachypodium distachyon		rarer than rare
Poaceae	Brachypodium glaucovirens		rarer than rare
Lamiaceae	Brazoria arenaria		rare
Asteraceae	Brickellia dentata		rare
Asteraceae	Brickellia leptophylla		rare
Asteraceae	Brickellia macranthra		common
Poaceae	Bromus hordeaceus ssp. pseudothominei		rare
Moraceae	Brosimum alicastrum		rarer than rare
Solanaceae	Brugmansia versicolor		rarer than rare
Rhizophoraceae	Bruguiera gymnorhiza		rarer than rare
Selaginellaceae	Bryodesma wrightii		questionable
Scrophulariaceae	Buddleja indica		rarer than rare
Scrophulariaceae	Buddleja madagascariensis		rarer than rare
Scrophulariaceae	Buddleja racemosa var. incana		rare
Cyperaceae	Bulbostylis hispidula		rarer than rare
Cabombaceae	Cabomba furcata		rarer than rare
Cabombaceae	Cabomba palaeformis		rarer than rare
Brassicaceae	Cakile lanceolata ssp. fusiformis		common
Brassicaceae	Cakile lanceolata ssp. pseudoconstricta		common
Poaceae	Calamagrostis canadensis var. macouniana		rare
Poaceae	Calamagrostis macrolepis		rarer than rare
Malpighiaceae	Callaeum septentrionale		rare
Fabaceae	Calliandra biflora		rare
Malvaceae	Callirhoe involucrata var. lineariloba		common
Malvaceae	Callirhoe scabriuscula		questionable
Agavaceae	Camassia species 1		rare
Nyssaceae	Camptotheca acuminata		rarer than rare
Polypodiaceae	Campyloneurum amphostenon		questionable
Polypodiaceae	Campyloneurum brevifolium		questionable
Brassicaceae	Capsella ×gracilis		rarer than rare
Brassicaceae	Capsella rubella		rarer than rare
Solanaceae	Capsicum annuum		uncommon
Brassicaceae	Cardamine flexuosa		questionable
Brassicaceae	Cardamine species 3 [=furcata]		rare
Liliaceae	Cardiocrinum cordatum		rarer than rare
Cyperaceae	Carex aestivaliformis		rare
Cyperaceae	Carex demissa ssp. demissa		rare
Cyperaceae	Carex douglasii		rarer than rare
Cyperaceae	Carex eggertii		rare
Cyperaceae	Carex gator		rare
Cyperaceae	Carex macrostachys		rarer than rare
Cyperaceae	Carex melanostachya		rarer than rare
Cyperaceae	Carex muricata ssp. lamprocarpa		rare
Cyperaceae	Carex ozarkana		common
Cyperaceae	Carex paupercula		rare
Cyperaceae	Carex species 3		rare
Cyperaceae	Carex species 4		rare
Cyperaceae	Carex species 5		uncommon
Cyperaceae	Carex species 6		uncommon
Cyperaceae	Carex species 7		common
Cyperaceae	Carex species 8		rare
Asteraceae	Carlina vulgaris ssp. vulgaris		rarer than rare
Acanthaceae	Carlowrightia torreyana		rare
Fabaceae	Cassia afrofistula		rarer than rare
Fabaceae	Cassia grandis		questionable
Fabaceae	Cassia javanica ssp. agnes		questionable
Rhamnaceae	Ceanothus ×serpyllifolius		rare
Amaranthaceae	Celosia palmeri		rare
Poaceae	Cenchrus albertsonii		rare
Poaceae	Cenchrus bambusoides		rare
Poaceae	Cenchrus densiflorus		rare
Poaceae	Cenchrus incertus		uncommon
Poaceae	Cenchrus roseus		rare
Poaceae	Cenchrus strictus		rare
Asteraceae	Centaurea ×gerstlaueri		rarer than rare
Asteraceae	Centaurea ×varnensis		rare
Asteraceae	Centaurea diluta		rarer than rare
Fabaceae	Centrosema sagittatum		rarer than rare
Rubiaceae	Cephalanthus salicifolius		rare
Fabaceae	Ceratonia siliqua		rarer than rare
Ceratophyllaceae	Ceratophyllum australe		rare
Pteridaceae	Ceratopteris richardii		rare
Pedaliaceae	Ceratotheca triloba		rarer than rare
Fabaceae	Cercis canadensis var. mexicana		rare
Apiaceae	Chaerophyllum temulum		rarer than rare
Apiaceae	Chaerophyllum texanum		common
Asteraceae	Chaetopappa effusa		rare
Asteraceae	Chaetopappa imberbis		rare
Asteraceae	Chaetopappa modesta		rare
Fabaceae	Chamaecrista calycioides var. calycioides		uncommon
Fabaceae	Chamaecrista chamaecristoides var. cruziana		common
Fabaceae	Chamaecrista fasciculata var. 1		common
Fabaceae	Chamaecrista flexuosa var. texana		common
Fabaceae	Chamaecrista greggii var. greggii		rare
Fabaceae	Chamaecrista pilosa var. pilosa		rare
Fabaceae	Chamaecrista serpens var. serpens		rare
Cupressaceae	Chamaecyparis pisifera		rarer than rare
Cupressaceae	Chamaecyparis thyoides		uncommon
Cupressaceae	Chamaecyparis thyoides var. henryae		uncommon
Solanaceae	Chamaesaracha coniodes		uncommon
Solanaceae	Chamaesaracha coronopus		uncommon
Solanaceae	Chamaesaracha darcyi		uncommon
Solanaceae	Chamaesaracha edwardsiana		rare
Solanaceae	Chamaesaracha sordida		uncommon
Asteraceae	Chaptalia carduacea		rare
Chenopodiaceae	Chenopodium albescens		rare
Chenopodiaceae	Chenopodium album		common
Chenopodiaceae	Chenopodium album var. stevensii		rare
Chenopodiaceae	Chenopodium berlandieri var. berlandieri		uncommon
Chenopodiaceae	Chenopodium berlandieri var. sinuatum		rare
Chenopodiaceae	Chenopodium carnosulum		rarer than rare
Chenopodiaceae	Chenopodium incognitum		uncommon
Chenopodiaceae	Chenopodium lenticulare		rare
Bignoniaceae	Chilopsis linearis var. tomenticaulis		rare
Poaceae	Chloris pilosa		rarer than rare
Apocynaceae	Chthamalia brevicoronata		rare
Apocynaceae	Chthamalia radiata		rare
Apiaceae	Cicuta maculata var. angustifolia		rare
Onagraceae	Circaea ×sterilis		uncommon
Asteraceae	Cirsium horridulum var. megacanthum		common
Asteraceae	Cirsium ochrocentrum		uncommon
Asteraceae	Cirsium palustre		rare
Verbenaceae	Citharexylum brachyanthum		rare
Rutaceae	Citrus ×aurantiifolia		rare
Rutaceae	Citrus ×jambhiri		rarer than rare
Rutaceae	Citrus ×limon		rare
Rutaceae	Citrus reticulata		rare
Cyperaceae	Cladium californicum		rare
Ranunculaceae	Clematis ×jackmanii		rarer than rare
Ranunculaceae	Clematis lanuginosa		rarer than rare
Ranunculaceae	Clematis ouachitensis		rare
Ranunculaceae	Clematis species 10		rare
Ranunculaceae	Clematis species 6		rare
Ranunculaceae	Clematis viticaulis		rare
Ranunculaceae	Clematis viticella		rarer than rare
Polygonaceae	Coccoloba ×hybrida		rare
Fabaceae	Cologania angustifolia		questionable
Commelinaceae	Commelina gigas		rare
Rhamnaceae	Condalia spathulata		rare
Asteraceae	Conoclinium betonicifolium var. integrifolium		rare
Asteraceae	Conoclinium dichotomum		uncommon
Asteraceae	Conoclinium dissectum		uncommon
Convolvulaceae	Convolvulus barbarus		rarer than rare
Malvaceae	Corchorus tridens		rarer than rare
Asteraceae	Coreopsis pubescens var. debilis		uncommon
Asteraceae	Coreopsis tinctoria var. atkinsoniana		rarer than rare
Asteraceae	Coreopsis tinctoria var. similis		common
Fumariaceae	Corydalis curvisiliqua var. curvisiliqua		rare
Fumariaceae	Corydalis heterocarpa		rarer than rare
Fumariaceae	Corydalis micrantha ssp. texensis		common
Cactaceae	Coryphantha pottsiana		rare
Asteraceae	Cosmos caudatus		rarer than rare
Malpighiaceae	Cottsia gracilis		rare
Crassulaceae	Crassula drummondii		uncommon
Crassulaceae	Crassula tillaea		rare
Rosaceae	Crataegus ×abbreviata		rare
Rosaceae	Crataegus ×amicalis		rare
Rosaceae	Crataegus ×anamesa		uncommon
Rosaceae	Crataegus ×antimima		rare
Rosaceae	Crataegus ×antiplasta		rare
Rosaceae	Crataegus ×atrorubens		rare
Rosaceae	Crataegus ×canescens		rare
Rosaceae	Crataegus ×collicola		rare
Rosaceae	Crataegus ×dallasiana		rare
Rosaceae	Crataegus ×danielsii		rare
Rosaceae	Crataegus ×disperma		rare
Rosaceae	Crataegus ×dispessa		rare
Rosaceae	Crataegus ×enucleata		rare
Rosaceae	Crataegus ×notha		rare
Rosaceae	Crataegus ×poliophylla		rare
Rosaceae	Crataegus ×stenosepala		rare
Rosaceae	Crataegus ×thermopegaea		rare
Rosaceae	Crataegus ×tripartita		rare
Rosaceae	Crataegus ×verruculosa		rare
Rosaceae	Crataegus delawarensis		rare
Rosaceae	Crataegus fecunda		rare
Rosaceae	Crataegus frugiferens		rare
Rosaceae	Crataegus harveyana		rare
Rosaceae	Crataegus jesupii		rare
Rosaceae	Crataegus lettermanii		rare
Rosaceae	Crataegus levis		rare
Rosaceae	Crataegus lucorum		rare
Rosaceae	Crataegus margaretiae var. angustifolia		rare
Rosaceae	Crataegus margaretiae var. brownii		rare
Rosaceae	Crataegus margaretiae var. margaretiae		uncommon
Rosaceae	Crataegus mohrii		uncommon
Rosaceae	Crataegus mollis var. texana		uncommon
Rosaceae	Crataegus nitida		rare
Rosaceae	Crataegus pinetorum		rare
Rosaceae	Crataegus pruinosa var. parvula		rare
Rosaceae	Crataegus pulcherrima		uncommon
Rosaceae	Crataegus scabrida var. asperifolia		rare
Rosaceae	Crataegus spes-aestatum		historical
Rosaceae	Crataegus sutherlandensis		rare
Rosaceae	Crataegus teres		uncommon
Rosaceae	Crataegus warneri		rare
Asteraceae	Crepis foetida		questionable
Asteraceae	Crepis nicaeensis		rarer than rare
Asteraceae	Crepis zacintha		rarer than rare
Amaryllidaceae	Crinum ×amabile		rarer than rare
Amaryllidaceae	Crinum americanum var. traubii		rare
Amaryllidaceae	Crinum erubescens		rarer than rare
Asteraceae	Croptilon hookerianum var. graniticum		rare
Asteraceae	Croptilon rigidifolium		common
Fabaceae	Crotalaria alata		rarer than rare
Fabaceae	Crotalaria angulata		rarer than rare
Fabaceae	Crotalaria verrucosa		rare
Fabaceae	Crotalaria virgulata ssp. grantiana		rarer than rare
Euphorbiaceae	Croton argenteus		rarer than rare
Euphorbiaceae	Croton berlandieri		uncommon
Euphorbiaceae	Croton ciliatoglandulifer		rare
Euphorbiaceae	Croton cortesianus		uncommon
Euphorbiaceae	Croton discolor		rarer than rare
Euphorbiaceae	Croton heptalon		common
Euphorbiaceae	Croton leucophyllus var. leucophyllus		uncommon
Euphorbiaceae	Croton parksii		common
Euphorbiaceae	Croton soliman		rare
Fabaceae	Ctenodon histrix var. incanus		rarer than rare
Cucurbitaceae	Cucumis anguria var. anguria		rare
Cucurbitaceae	Cucumis melo var. cantalupo		rarer than rare
Cucurbitaceae	Cucurbita melopepo var. melopepo		rarer than rare
Zingiberaceae	Curcuma picta		rarer than rare
Convolvulaceae	Cuscuta boldinghii		rare
Convolvulaceae	Cuscuta cassytoides		rarer than rare
Convolvulaceae	Cuscuta epilinum		rare
Convolvulaceae	Cuscuta gronovii var. calyptrata		rare
Convolvulaceae	Cuscuta gronovii var. curta		rare
Convolvulaceae	Cuscuta gronovii var. latiflora		present
Convolvulaceae	Cuscuta indecora var. longisepala		uncommon
Convolvulaceae	Cuscuta japonica var. formosana		rare
Convolvulaceae	Cuscuta legitima		rare
Convolvulaceae	Cuscuta squamata		rare
Convolvulaceae	Cuscuta suaveolens		rarer than rare
Poaceae	Cymbopogon jwarancusa		rarer than rare
Asteraceae	Cymophora accedens		rarer than rare
Apiaceae	Cymopterus glomeratus var. glomeratus		rare
Poaceae	Cynodon aethiopicus		rare
Poaceae	Cynodon incompletus		rare
Poaceae	Cynodon nlemfuensis var. nlemfuensis		rare
Poaceae	Cynodon nlemfuensis var. robustus		rare
Poaceae	Cynodon plectostachyus		rare
Cyperaceae	Cyperus aristulatus		rare
Cyperaceae	Cyperus breviculmis		rarer than rare
Cyperaceae	Cyperus conglobatus		rare
Cyperaceae	Cyperus drummondii		uncommon
Cyperaceae	Cyperus esculentus var. esculentus		rarer than rare
Cyperaceae	Cyperus esculentus var. heermannii		rarer than rare
Cyperaceae	Cyperus excurrens		rare
Cyperaceae	Cyperus fraternus		uncommon
Cyperaceae	Cyperus giganteus		rare
Cyperaceae	Cyperus hemidrummondii		uncommon
Cyperaceae	Cyperus hystricoides		rarer than rare
Cyperaceae	Cyperus prolixus		rare
Cyperaceae	Cyperus pseudothyrsiflorus		rare
Cyperaceae	Cyperus retroflexus var. retroflexus		common
Cyperaceae	Cyperus species 1		uncommon
Cyperaceae	Cyperus squarrosus		common
Cyperaceae	Cyperus squarrosus var. runyonii		rare
Cyperaceae	Cyperus strigosus var. stenolepis		rare
Cyperaceae	Cyperus unioloides		rarer than rare
Dryopteridaceae	Cyrtomium caryotideum		rarer than rare
Cystopteridaceae	Cystopteris ×wagneri		rare
Poaceae	Dactyloctenium ctenioides		rare
Poaceae	Dactyloctenium geminatum		rarer than rare
Fabaceae	Dalea carrizoana		rare
Fabaceae	Dalea ceciliana		rare
Fabaceae	Dalea compacta var. compacta		uncommon
Fabaceae	Dalea drummondiana		uncommon
Fabaceae	Dalea lasiathera		rare
Fabaceae	Dalea nana		common
Fabaceae	Dalea pogonathera var. walkerae		common
Fabaceae	Dalea reverchonii		rare
Fabaceae	Dalea rubescens		rare
Fabaceae	Dalea scandens var. paucifolia		rare
Fabaceae	Dalea tenuifolia		rare
Fabaceae	Dalea villosa		uncommon
Apiaceae	Daucosma laciniata		rare
Apiaceae	Daucus broteri		rarer than rare
Ranunculaceae	Delphinium madrense		rare
Ranunculaceae	Delphinium pubescens		rarer than rare
Ranunculaceae	Delphinium tenuissimum		rarer than rare
Brassicaceae	Descurainia pinnata ssp. halictorum		rare
Brassicaceae	Descurainia pinnata ssp. intermedia		rarer than rare
Fabaceae	Desmanthus acuminatus		common
Fabaceae	Desmanthus brevipes		uncommon
Fabaceae	Desmanthus leptophyllus		rare
Fabaceae	Desmanthus obtusus		rare
Fabaceae	Desmanthus reticulatus		rare
Fabaceae	Desmodium ×humifusum		rare
Fabaceae	Desmodium lindheimeri		questionable
Fabaceae	Desmodium psilophyllum		rare
Hydrangeaceae	Deutzia crenata var. crenata		uncommon
Asteraceae	Diaperia prolifera var. barnebyi		questionable
Lamiaceae	Dicerandra species 1		uncommon
Poaceae	Dichanthelium mundum		rare
Poaceae	Dichanthelium nodatum		uncommon
Poaceae	Dichanthelium pedicellatum		rare
Poaceae	Dichanthelium recognitum		rare
Poaceae	Dichanthelium thurowii		common
Poaceae	Dichanthelium villosissimum var. praecocius		uncommon
Selaginellaceae	Didiclis uncinata		rarer than rare
Hymenophyllaceae	Didymoglossum lineolatum		historical
Poaceae	Digitaria bakeri		rare
Poaceae	Digitaria didactyla		rarer than rare
Poaceae	Digitaria floridana		rare
Poaceae	Digitaria panicea		rare
Poaceae	Digitaria simpsonii		rare
Poaceae	Dinebra decipiens var. peacockii		rarer than rare
Poaceae	Dinebra divaricatissima		rarer than rare
Poaceae	Dinebra scabra		uncommon
Dioscoreaceae	Dioscorea quaternata		common
Dioscoreaceae	Dioscorea villosa		common
Lycopodiaceae	Diphasiastrum ×habereri		uncommon
Lycopodiaceae	Diphasiastrum ×verecundum		no
Lycopodiaceae	Diphasiastrum complanatum		questionable
Lycopodiaceae	Diphasiastrum sabinifolium		historical
Poaceae	Diplachne acuminata		rare
Poaceae	Diplachne fusca		rarer than rare
Athyriaceae	Diplazium lonchophyllum		rare
Poaceae	Distichlis spicata		common
Poaceae	Distichlis stricta		rare
Sapindaceae	Dodonaea elaeagnoides		rare
Plantaginaceae	Dopatrium junceum		rare
Moraceae	Dorstenia contrajerva		rarer than rare
Droseraceae	Drosera spatulata var. spatulata		rare
Bromeliaceae	Dyckia brevifolia		rarer than rare
Acanthaceae	Dyschoriste linearis var. sanpatriciensis		rare
Chenopodiaceae	Dysphania plantaginella		rarer than rare
Agavaceae	Echeandia chandleri		rare
Asteraceae	Echinacea angustifolia var. strigosa		common
Cactaceae	Echinocereus coccineus ssp. roemeri		rare
Cactaceae	Echinocereus coccineus ssp. transpecosensis		rare
Cactaceae	Echinocereus fitchii ssp. albertii		rare
Cactaceae	Echinocereus papillosus		rare
Cactaceae	Echinocereus reichenbachii ssp. comanchensis		rare
Poaceae	Echinochloa crus-pavonis var. crus-pavonis		rarer than rare
Poaceae	Echinochloa crus-pavonis var. macera		common
Poaceae	Echinochloa oryzoides		rarer than rare
Poaceae	Echinochloa polystachya		uncommon
Asteraceae	Echinops exaltatus		questionable
Boraginaceae	Echium pustulatum		rarer than rare
Poaceae	Ehrharta calycina		rarer than rare
Elatinaceae	Elatine heterandra		rare
Elatinaceae	Elatine rubella		no
Cyperaceae	Eleocharis angusticeps		rare
Cyperaceae	Eleocharis bicolor		rare
Cyperaceae	Eleocharis brachycarpa		historical
Cyperaceae	Eleocharis mutata		rare
Cyperaceae	Eleocharis nana		rare
Cyperaceae	Eleocharis obtusetrigona		rare
Cyperaceae	Eleocharis reverchonii		rare
Cyperaceae	Eleocharis xyridiformis		rare
Poaceae	Eleusine africana		rarer than rare
Poaceae	Elymus ×ebingeri		rare
Poaceae	Elymus canadensis var. brachystachys		common
Poaceae	Elymus canadensis var. robustus		uncommon
Poaceae	Elymus interruptus		rare
Poaceae	Elymus macgregorii var. hirsutispiculus		rare
Poaceae	Elymus villosus		common
Acanthaceae	Elytraria bromoides		uncommon
Acanthaceae	Elytraria caroliniensis var. vahliana		uncommon
Asteraceae	Emilia coccinea		rarer than rare
Poaceae	Enteropogonopsis chloridea		uncommon
Orchidaceae	Epidendrum acunae		historical
Onagraceae	Epilobium ×wisconsinense		rare
Onagraceae	Epilobium roseum		rarer than rare
Equisetaceae	Equisetum ×jesupii		rare
Equisetaceae	Equisetum ×litorale		rare
Equisetaceae	Equisetum ×nelsonii		rare
Equisetaceae	Equisetum ferrissii		uncommon
Poaceae	Eragrostis airoides		rarer than rare
Poaceae	Eragrostis bahiensis		uncommon
Poaceae	Eragrostis lehmanniana		uncommon
Poaceae	Eragrostis lugens		common
Poaceae	Eragrostis mexicana		rare
Poaceae	Eragrostis palmeri		rare
Poaceae	Eragrostis prolifera		rare
Poaceae	Eragrostis sessilispica		common
Poaceae	Eragrostis silveana		uncommon
Poaceae	Eragrostis spicata		uncommon
Poaceae	Eragrostis swallenii		uncommon
Poaceae	Eragrostis tef		rarer than rare
Poaceae	Eragrostis tephrosanthos		rare
Poaceae	Eragrostis tracyi		rare
Poaceae	Eragrostis trichophora		rarer than rare
Poaceae	Eragrostis virescens		rarer than rare
Asteraceae	Erechtites valerianifolius		rare
Asteraceae	Erigeron bellidiastrum var. robustus		rare
Asteraceae	Erigeron beyrichii		common
Asteraceae	Erigeron flagellaris		rare
Asteraceae	Erigeron strigosus var. strigosus		common
Asteraceae	Erigeron tenellus		rare
Asteraceae	Erigeron tracyi		rare
Poaceae	Eriochloa barbatus		rarer than rare
Poaceae	Eriochloa pseudoacrotricha		uncommon
Poaceae	Eriocoma hymenoides		rare
Polygonaceae	Eriogonum alatum var. glabriusculum		rare
Polygonaceae	Eriogonum greggii		rare
Polygonaceae	Eriogonum riograndis		common
Geraniaceae	Erodium botrys		rarer than rare
Geraniaceae	Erodium reichardii		questionable
Apiaceae	Eryngium altamaha		rare
Apiaceae	Eryngium diffusum		rare
Apiaceae	Eryngium floridanum		rare
Apiaceae	Eryngium integrifolium var. integrifolium		common
Apiaceae	Eryngium integrifolium var. maficola		rare
Apiaceae	Eryngium integrifolium var. piedmontanum		rare
Apiaceae	Eryngium lanceolatum		rare
Apiaceae	Eryngium ludovicianum		rare
Apiaceae	Eryngium nasturtiifolium		rare
Apiaceae	Eryngium species 1		rare
Brassicaceae	Erysimum cheiri		rarer than rare
Phrymaceae	Erythranthe floribunda		rare
Phrymaceae	Erythranthe inamoena		rare
Liliaceae	Erythronium dens-canis		rarer than rare
Myrtaceae	Eucalyptus glaucescens		rarer than rare
Loasaceae	Eucnide bartonioides var. edwardsiana		rare
Asteraceae	Eupatorium ×pinnatifidum		uncommon
Asteraceae	Eupatorium ×truncatum		rare
Asteraceae	Eupatorium sessilifolium		common
Asteraceae	Eupatorium species 1		rare
Euphorbiaceae	Euphorbia austrotexana var. carrii		rare
Euphorbiaceae	Euphorbia blodgettii		common
Euphorbiaceae	Euphorbia carunculata		questionable
Euphorbiaceae	Euphorbia chiogenes		rare
Euphorbiaceae	Euphorbia herniariifolia		rarer than rare
Euphorbiaceae	Euphorbia lactea		rarer than rare
Euphorbiaceae	Euphorbia meganaesos		rare
Euphorbiaceae	Euphorbia myrsinites		rare
Euphorbiaceae	Euphorbia species 1		rare
Euphorbiaceae	Euphorbia species 5		uncommon
Euphorbiaceae	Euphorbia tithymaloides ssp. smallii		rare
Euphorbiaceae	Euphorbia tithymaloides ssp. tithymaloides		rarer than rare
Euphorbiaceae	Euphorbia tubadenia		rare
Heliotropiaceae	Euploca fruticosa		rare
Heliotropiaceae	Euploca species 1		rare
Heliotropiaceae	Euploca texana		common
Asteraceae	Eurybia ×herveyi		rare
Apiaceae	Eurytaenia texana		common
Asteraceae	Euthamia floribunda		uncommon
Asteraceae	Euthamia pulverulenta		uncommon
Asteraceae	Euthamia remota		questionable
Asteraceae	Eutrochium purpureum var. holzingeri		uncommon
Convolvulaceae	Evolvulus discolor		rare
Convolvulaceae	Evolvulus macilentus		rare
Convolvulaceae	Evolvulus sericeus var. cymosus		uncommon
Poaceae	Festuca lachenalii		rare
Poaceae	Festuca octoflora var. hirtella		rare
Poaceae	Festuca rubra ssp. rubra		common
Cyperaceae	Ficinia filiformis		rarer than rare
Cyperaceae	Fimbristylis interior		rare
Asteraceae	Flaveria brownii		uncommon
Asteraceae	Flaveria campestris		rare
Oleaceae	Fontanesia fortunei		rarer than rare
Hamamelidaceae	Fothergilla ×intermedia		rarer than rare
Rosaceae	Fragaria ×ananassa ssp. ananassa		rarer than rare
Oleaceae	Fraxinus biltmoreana var. subcoriacea		uncommon
Oleaceae	Fraxinus pauciflora		uncommon
Amaranthaceae	Froelichia floridana var. pallescens		common
Cyperaceae	Fuirena wallichiana		rarer than rare
Fumariaceae	Fumaria densiflora		rare
Agavaceae	Furcraea hexapetala		rarer than rare
Asteraceae	Gaillardia ×grandiflora		rarer than rare
Asteraceae	Gaillardia aestivalis var. austrotexana		common
Asteraceae	Gaillardia fastigiata		common
Asteraceae	Gaillardia pulchella var. australis		common
Fabaceae	Galactia austrofloridensis		rare
Fabaceae	Galactia canescens		common
Fabaceae	Galactia fasciculata		uncommon
Fabaceae	Galactia heterophylla		uncommon
Fabaceae	Galactia longifolia		rare
Fabaceae	Galactia texana		rare
Lamiaceae	Galeopsis ladanum var. ladanum		rarer than rare
Rubiaceae	Galium pumilum		rarer than rare
Rubiaceae	Galium sylvaticum		rarer than rare
Asteraceae	Gamochaeta argentina		rarer than rare
Gentianaceae	Gentiana ×curtisii		rare
Gentianaceae	Gentiana ×pallidocyanea		rare
Polemoniaceae	Gilia tricolor ssp. tricolor		rarer than rare
Polemoniaceae	Giliastrum incisum		common
Polemoniaceae	Giliastrum ludens		rare
Iridaceae	Gladiolus ×colvillei		rarer than rare
Iridaceae	Gladiolus ×gandavensis		uncommon
Verbenaceae	Glandularia ×hybrida		rarer than rare
Verbenaceae	Glandularia delticola		rare
Verbenaceae	Glandularia elegans var. asperata		rarer than rare
Verbenaceae	Glandularia incisa		rarer than rare
Verbenaceae	Glandularia polyantha		uncommon
Verbenaceae	Glandularia quadrangulata		common
Fabaceae	Gleditsia ×texana		rare
Molluginaceae	Glinus lotoides		rare
Molluginaceae	Glinus radiatus		uncommon
Zingiberaceae	Globba schomburgkii		rarer than rare
Poaceae	Glyceria ×gatineauensis		rare
Poaceae	Glyceria notata		questionable
Poaceae	Glyceria striata var. stricta		questionable
Lamiaceae	Gmelina arborea		rarer than rare
Amaranthaceae	Gomphrena haageana		rare
Amaranthaceae	Gomphrena lanuparonychioides		uncommon
Amaranthaceae	Gomphrena nealleyi		common
Orchidaceae	Govenia floridana		historical
Plantaginaceae	Gratiola species 1		rare
Plantaginaceae	Gratiola torreyi		uncommon
Asteraceae	Grindelia grandiflora		rare
Asteraceae	Grindelia microcephala		rare
Asteraceae	Grindelia nuda		common
Asteraceae	Grindelia oolepis		rare
Asteraceae	Grindelia pusilla		rare
Asteraceae	Grindelia squarrosa		common
Asteraceae	Grindelia texana		common
Nyctaginaceae	Guapira obtusata ssp. obtusata		rare
Asteraceae	Gutierrezia texana var. glutinosa		uncommon
Cystopteridaceae	Gymnocarpium ×brittonianum		questionable
Cystopteridaceae	Gymnocarpium ×heterosporum		historical
Poaceae	Gynerium sagittatum		rarer than rare
Asteraceae	Gynura aurantiaca		rarer than rare
Styracaceae	Halesia diptera var. magniflora		rare
Lamiaceae	Hedeoma acinoides		common
Araliaceae	Hedera colchica		rarer than rare
Asteraceae	Helenium ×polyphyllum		rare
Asteraceae	Helenium linifolium		uncommon
Asteraceae	Helianthus dowellianus		uncommon
Asteraceae	Helianthus glaucophyllus		uncommon
Asteraceae	Helianthus praecox ssp. praecox		rare
Asteraceae	Helianthus praecox ssp. runyonii		common
Asteraceae	Helianthus species 1		rare
Heliotropiaceae	Heliotropium funkiae		rare
Caryophyllaceae	Herniaria hirsuta		rarer than rare
Agavaceae	Hesperaloe engelmannii		rare
Poaceae	Hesperochloa sororia		historical
Asteraceae	Heterotheca stenophylla		questionable
Saxifragaceae	Heuchera parviflora		uncommon
Orchidaceae	Hexalectris grandiflora		rare
Asaraceae	Hexastylis species 6		uncommon
Asteraceae	Hieracium ×fassettii		rare
Asteraceae	Hieracium ×scribneri		rare
Poaceae	Hilaria jamesii		rare
Poaceae	Hilaria mutica		rare
Fabaceae	Hoffmannseggia drummondii		rare
Fabaceae	Hoffmannseggia oxycarpa ssp. oxycarpa		rare
Fabaceae	Hoffmannseggia tenella		rare
Lamiaceae	Holmskioldia sanguinea		rarer than rare
Poaceae	Hordeum jubatum ssp. intermedium		rarer than rare
Poaceae	Hordeum marinum ssp. marinum		rarer than rare
Poaceae	Hordeum murinum ssp. glaucum		rarer than rare
Rubiaceae	Houstonia croftiae		rare
Rubiaceae	Houstonia humifusa		rare
Rubiaceae	Houstonia nigricans var. 1		rare
Rubiaceae	Houstonia nigricans var. pulvinata		rare
Rubiaceae	Houstonia parviflora		rare
Huperziaceae	Huperzia ×bartleyi		rare
Huperziaceae	Huperzia ×buttersii		rare
Huperziaceae	Huperzia ×protoporophila		rare
Hydrangeaceae	Hydrangea macrophylla		rarer than rare
Hydroleaceae	Hydrolea capsularis		rare
Acanthaceae	Hygrophila species 1		rare
Asteraceae	Hymenopappus artemisiifolius var. riograndensis		common
Asteraceae	Hymenopappus carrii		rare
Asteraceae	Hymenopappus carrizoanus		rare
Asteraceae	Hymenopappus filifolius var. cinereus		rare
Asteraceae	Hymenopappus flavescens var. flavescens		rare
Asteraceae	Hymenopappus tenuifolius		common
Hypericaceae	Hypericum species 2		rare
Ericaceae	Hypopitys americana		common
Lamiaceae	Hyptis alata		common
Brassicaceae	Iberis saxatilis		rarer than rare
Aquifoliaceae	Ilex ×attenuata		rare
Poaceae	Imperata brevifolia		rare
Fabaceae	Indigofera colutea		rare
Fabaceae	Indigofera lindheimeriana		rare
Poaceae	Indocalamus tesselatus		rarer than rare
Asteraceae	Inula racemosa		rare
Convolvulaceae	Ipomoea horsfalliae		rarer than rare
Convolvulaceae	Ipomoea lindheimeri		rare
Convolvulaceae	Ipomoea meyeri		questionable
Iridaceae	Iris ×vinicolor		uncommon
Iridaceae	Iris albispiritus		rare
Iridaceae	Iris flexicaulis		uncommon
Iridaceae	Iris kimballiae		rare
Iridaceae	Iris orientalis		rare
Iridaceae	Iris rivularis		rare
Iridaceae	Iris variegata		rarer than rare
Iridaceae	Iris violipurpurea		rare
Iridaceae	Iris xiphium		rarer than rare
Asteraceae	Isocarpha oppositifolia var. achyranthes		uncommon
Asteraceae	Isocoma drummondii		common
Isoetaceae	Isoetes ×altonharvillii		rare
Isoetaceae	Isoetes ×brittonii		rare
Isoetaceae	Isoetes ×bruntonii		rare
Isoetaceae	Isoetes ×carltaylorii		rare
Isoetaceae	Isoetes ×dodgei		rare
Isoetaceae	Isoetes ×eatonii		rare
Isoetaceae	Isoetes ×fairbrothersii		rare
Isoetaceae	Isoetes ×robusta		rare
Isoetaceae	Isoetes chapmanii		rare
Isoetaceae	Isoetes riparia var. reticulata		rare
Isoetaceae	Isoetes riparia var. riparia		rare
Isoetaceae	Isoetes saccharata		rare
Isoetaceae	Isoetes species 3		rare
Isoetaceae	Isoetes texana		rare
Asteraceae	Iva asperifolia		rarer than rare
Asteraceae	Iva corbinii		rare
Poaceae	Ixophorus unisetus		planted
Asteraceae	Jacobaea erratica		rarer than rare
Convolvulaceae	Jacquemontia verticillata		rarer than rare
Oleaceae	Jasminum grandiflorum		rarer than rare
Oleaceae	Jasminum nitidum		rarer than rare
Oleaceae	Jasminum sambac		rarer than rare
Euphorbiaceae	Jatropha podagrica		rarer than rare
Juncaceae	Juncus alpinoarticulatus ssp. fuscescens		no
Juncaceae	Juncus balticus ssp. ater		rare
Juncaceae	Juncus fascinatus		uncommon
Juncaceae	Juncus snowii		rare
Juncaceae	Juncus texanus		common
Acanthaceae	Justicia carnea		rarer than rare
Crassulaceae	Kalanchoe daigremontiana		common
Crassulaceae	Kalanchoe gastonis-bonnieri		questionable
Zygophyllaceae	Kallstroemia californica		common
Zygophyllaceae	Kallstroemia hirsutissima		rare
Zygophyllaceae	Kallstroemia pubescens		rarer than rare
Malvaceae	Krapovickasia physaloides		rare
Asteraceae	Krigia gracilis		common
Verbenaceae	Lantana ×floridana		uncommon
Verbenaceae	Lantana ×strigodepressa		rare
Verbenaceae	Lantana sandersii var. sanibelensis		rare
Verbenaceae	Lantana velutina		rare
Poaceae	Lasiacis ruscifolia		rare
Fabaceae	Lathyrus clymenum		rarer than rare
Fabaceae	Lathyrus decaphyllus var. incanus		rare
Fabaceae	Lathyrus japonicus var. pellitus		rare
Fabaceae	Lathyrus sativus		rarer than rare
Fabaceae	Lathyrus venosus var. arkansanus		common
Fabaceae	Lathyrus venosus var. intonsus		rare
Lythraceae	Lawsonia inermis		rarer than rare
Brassicaceae	Leavenworthia alabamica var. brachystyla		rare
Brassicaceae	Leavenworthia aurea		rare
Poaceae	Leersia monandra		uncommon
Brassicaceae	Lepidium hyssopifolium		rarer than rare
Brassicaceae	Lepidium schinzii		rarer than rare
Poaceae	Leptochloa chloridiformis		rarer than rare
Poaceae	Leptoloma syrticola		uncommon
Fabaceae	Lespedeza cyrtobotrya		rarer than rare
Fabaceae	Lespedeza formosa		rarer than rare
Asteraceae	Leucanthemum lacustre		rarer than rare
Asteraceae	Liatris ×boykinii		rare
Asteraceae	Liatris ×spheroidea		rare
Asteraceae	Liatris punctata var. mexicana		uncommon
Oleaceae	Ligustrum obtusifolium var. suave		rarer than rare
Liliaceae	Lilium candidum		rarer than rare
Plantaginaceae	Limnophila aromatica		rare
Plantaginaceae	Limnophila indica		rarer than rare
Lauraceae	Lindera angustifolia		rarer than rare
Linderniaceae	Lindernia dubia var. inundata		rare
Linaceae	Linum carteri		rare
Linaceae	Linum elongatum		rare
Linaceae	Linum hudsonioides		common
Linaceae	Linum imbricatum		common
Linaceae	Linum lundellii		rare
Chenopodiaceae	Lipandra polysperma var. acutifolia		rarer than rare
Magnoliaceae	Liriodendron species 1		rare
Ruscaceae	Liriope exiliflora		questionable
Sapindaceae	Litchi chinensis		rarer than rare
Fagaceae	Lithocarpus henryi		rarer than rare
Campanulaceae	Lobelia brachypoda		uncommon
Poaceae	Lolium persicum		rarer than rare
Apiaceae	Lomatium foeniculaceum ssp. daucifolium		common
Apiaceae	Lomatium foeniculaceum ssp. foeniculaceum		rare
Fabaceae	Lonchocarpus punctatus		rarer than rare
Caprifoliaceae	Lonicera ×purpusii		rarer than rare
Caprifoliaceae	Lonicera standishii		uncommon
Fabaceae	Lotus uliginosus		rarer than rare
Onagraceae	Ludwigia longifolia		rarer than rare
Onagraceae	Ludwigia peploides var. montevidensis		rarer than rare
Onagraceae	Ludwigia simpsonii		common
Onagraceae	Ludwigia species 1 [=brachycarpa]		common
Lycopodiaceae	Lycopodiella ×brucei		uncommon
Lycopodiaceae	Lycopodiella ×gilmanii		rare
Lycopodiaceae	Lycopodiella ×robusta		rare
Lycopodiaceae	Lycopodiella margueriteae		rare
Lamiaceae	Lycopus ×sherardii		uncommon
Lamiaceae	Lycopus glandulosus		uncommon
Amaryllidaceae	Lycoris radiata		rare
Amaryllidaceae	Lycoris radiata var. pumila		rarer than rare
Lygodiaceae	Lygodium palmatum ssp. palmatum		uncommon
Lygodiaceae	Lygodium palmatum ssp. puskariorum		rare
Primulaceae	Lysimachia ×commixta		rare
Primulaceae	Lysimachia ×producta		common
Primulaceae	Lysimachia ×radfordii		rare
Lythraceae	Lythrum californicum		common
Lythraceae	Lythrum nieuwlandii		rare
Lythraceae	Lythrum ovalifolium		questionable
Lythraceae	Lythrum portula		rare
Orchidaceae	Macradenia lutescens		historical
Malpighiaceae	Malpighia emarginata		rare
Rosaceae	Malus ×platycarpa		rare
Malvaceae	Malva trimestris		rare
Malvaceae	Malvella lepidota		rare
Malvaceae	Malvella leprosa		rare
Malvaceae	Malvella sagittifolia		rare
Apocynaceae	Mandevilla macrosiphon		questionable
Asteraceae	Marshallia species 1		rare
Marsileaceae	Marsilea ancylopoda		rarer than rare
Marsileaceae	Marsilea hirsuta		rarer than rare
Marsileaceae	Marsilea oligospora		rarer than rare
Dryopteridaceae	Maxonia apiifolia var. apiifolia		planted
Mayacaceae	Mayaca fluviatilis		common
Fabaceae	Medicago heldreichii		rarer than rare
Fabaceae	Medicago monantha		rarer than rare
Fabaceae	Medicago sativa ssp. ×varia		rare
Fabaceae	Medicago sativa ssp. falcata		common
Asteraceae	Melampodium cinereum var. cinereum		uncommon
Asteraceae	Melampodium cinereum var. ramosissimum		rare
Asteraceae	Melampodium sericeum		rarer than rare
Poaceae	Melica altissima		rare
Poaceae	Melica aristata		rarer than rare
Fabaceae	Melilotus dentatus		rarer than rare
Fabaceae	Melilotus infestus		rarer than rare
Fabaceae	Melilotus neapolitanus		rarer than rare
Fabaceae	Melilotus siculus		rarer than rare
Malvaceae	Melochia nodiflora		rarer than rare
Lamiaceae	Mentha ×gracilis		uncommon
Lamiaceae	Mentha ×rotundifolia		rare
Lamiaceae	Mentha ×verticillata		rare
Lamiaceae	Mentha ×villosa		uncommon
Lamiaceae	Mentha aquatica var. citrata		rare
Lamiaceae	Mentha longifolia ssp. longifolia		uncommon
Linderniaceae	Micranthemum micranthemoides		historical
Saxifragaceae	Micranthes forbesii		uncommon
Saxifragaceae	Micranthes scopularum		rare
Asteraceae	Micropsis dasycarpa		rare
Fabaceae	Mimosa malacophylla		rare
Fabaceae	Mimosa monclovensis		rare
Fabaceae	Mimosa rupertiana		rare
Fabaceae	Mimosa texana var. texana		uncommon
Sapotaceae	Mimusops balata		rarer than rare
Nyctaginaceae	Mirabilis austrotexana		uncommon
Nyctaginaceae	Mirabilis latifolia		rare
Saxifragaceae	Mitella prostrata		historical
Phyllanthaceae	Moeroris abnormis ssp. abnormis		common
Phyllanthaceae	Moeroris abnormis ssp. riograndensis		rare
Phyllanthaceae	Moeroris arenaria		rare
Phyllanthaceae	Moeroris fraterna		rare
Molluginaceae	Mollugo nudicaulis		rarer than rare
Lamiaceae	Monarda citriodora var. parva		uncommon
Lamiaceae	Monarda maxmedleyi		rare
Lamiaceae	Monarda pectinata		rare
Lamiaceae	Monarda punctata var. correllii		rare
Lamiaceae	Monarda punctata var. lasiodonta		common
Lamiaceae	Monarda simmersii		uncommon
Lamiaceae	Monarda species 4 [=villicaulis]		uncommon
Lamiaceae	Monarda species 5		rare
Lamiaceae	Monarda stanfieldii		rare
Poaceae	Moorochloa eruciformis		rarer than rare
Fabaceae	Mucuna macrocarpa		questionable
Poaceae	Muhlenbergia ×curtisetosa		rare
Poaceae	Muhlenbergia ×involuta		uncommon
Poaceae	Muhlenbergia arenicola		rare
Poaceae	Muhlenbergia diversiglumis		rarer than rare
Poaceae	Muhlenbergia phleoides		rare
Poaceae	Muhlenbergia porteri		rare
Poaceae	Muhlenbergia repens		no
Poaceae	Muhlenbergia texana		questionable
Poaceae	Muhlenbergia utilis		rare
Poaceae	Munroa squarrosa		rare
Musaceae	Musa ornata		rarer than rare
Musaceae	Musa velutina		rarer than rare
Pteridaceae	Myriopteris aemula		rare
Heliotropiaceae	Myriopus poliochros		rare
Asteraceae	Nabalus albus var. stramineus		uncommon
Asteraceae	Nabalus carrii		questionable
Asteraceae	Nabalus cylindricus		rare
Hydrocharitaceae	Najas guadalupensis var. olivacea		rare
Hydrocharitaceae	Najas muenscheri		historical
Namaceae	Nama berlandieri		rare
Namaceae	Nama parvifolia		rare
Namaceae	Nama stenocarpa		uncommon
Fabaceae	Nanogalactia heterophylla		common
Amaryllidaceae	Narcissus ×tenuior		rarer than rare
Nartheciaceae	Narthecium montanum		extirpated
Fabaceae	Neltuma glandulosa var. prostrata		uncommon
Fabaceae	Neltuma laevigata		rare
Lamiaceae	Nepeta ×faassenii		rarer than rare
Fabaceae	Neptunia microcarpa		rare
Fabaceae	Neptunia oleracea		rare
Fabaceae	Neptunia plena		rare
Solanaceae	Nicotiana ×sanderae		rarer than rare
Solanaceae	Nicotiana suaveolens		rarer than rare
Solanaceae	Nicotiana sylvestris		rarer than rare
Ranunculaceae	Nigella arvensis		rarer than rare
Ranunculaceae	Nigella sativa		rarer than rare
Oleaceae	Noronhia emarginata		rarer than rare
Nymphaeaceae	Nymphaea ×daubenyana		rare
Ochnaceae	Ochna thomasiana		rarer than rare
Asteraceae	Oclemena ×blakei		rare
Onagraceae	Oenothera calcicola		rare
Onagraceae	Oenothera canescens		rare
Onagraceae	Oenothera cinerea ssp. cinerea		common
Onagraceae	Oenothera cinerea ssp. parksii		rare
Onagraceae	Oenothera cordata		rare
Onagraceae	Oenothera coryi		no
Onagraceae	Oenothera curtissii		uncommon
Onagraceae	Oenothera elata ssp. hirsutissima		rare
Onagraceae	Oenothera falfurriae		common
Onagraceae	Oenothera fruticosa var. microcarpa		rare
Onagraceae	Oenothera hartwegii ssp. fendleri		rare
Onagraceae	Oenothera hartwegii ssp. filifolia		rare
Onagraceae	Oenothera hartwegii ssp. hartwegii		rare
Onagraceae	Oenothera hartwegii ssp. maccartii		rare
Onagraceae	Oenothera hartwegii ssp. pubescens		common
Onagraceae	Oenothera indecora		rarer than rare
Onagraceae	Oenothera kunthiana		uncommon
Onagraceae	Oenothera macrocarpa ssp. incana		questionable
Onagraceae	Oenothera mckelveyae		common
Onagraceae	Oenothera mexicana		uncommon
Onagraceae	Oenothera mollissima		rarer than rare
Onagraceae	Oenothera pallida ssp. latifolia		rare
Onagraceae	Oenothera rosea		uncommon
Onagraceae	Oenothera sessilis		rare
Onagraceae	Oenothera species 1 [australis]		common
Onagraceae	Oenothera species 2		rare
Onagraceae	Oenothera tetraptera		rare
Onagraceae	Oenothera triangulata		rare
Onagraceae	Oenothera tubicula ssp. tubicula		questionable
Onagraceae	Oenothera villaricae		rarer than rare
Resedaceae	Oligomeris linifolia		rare
Cactaceae	Opuntia anahuacensis		uncommon
Cactaceae	Opuntia bentonii		uncommon
Cactaceae	Opuntia cacanapa		rare
Cactaceae	Opuntia dulcis		rare
Cactaceae	Opuntia engelmannii var. flexospina		rare
Cactaceae	Opuntia mackensenii		uncommon
Cactaceae	Opuntia microdasys		rarer than rare
Fabaceae	Orbexilum macrophyllum		extirpated
Fabaceae	Orbexilum stipulatum		extirpated
Apiaceae	Orlaya daucoides		rarer than rare
Hyacinthaceae	Ornithogalum pyrenaicum		rarer than rare
Fabaceae	Ornithopus sativus ssp. sativus		rare
Poaceae	Oryza rufipogon		rare
Oleaceae	Osmanthus ×fortunei		rarer than rare
Oxalidaceae	Oxalis frutescens ssp. angustifolia		common
Oxalidaceae	Oxalis species 1		rare
Menispermaceae	Pachygone laurifolia		rarer than rare
Rubiaceae	Paederia cruddasiana		rare
Asteraceae	Palafoxia rosea var. macrolepis		uncommon
Rhamnaceae	Paliurus spina-christi		rarer than rare
Poaceae	Panicum diffusum		common
Poaceae	Panicum filipes		uncommon
Poaceae	Panicum ghiesbreghtii		uncommon
Poaceae	Panicum gouinii		rare
Poaceae	Panicum hallii		common
Poaceae	Panicum hillmanii		rare
Poaceae	Panicum hirsutum		rare
Poaceae	Panicum hirticaule ssp. hirticaule		questionable
Poaceae	Panicum miliaceum ssp. ruderale		uncommon
Poaceae	Panicum paludosum		rarer than rare
Poaceae	Panicum philadelphicum ssp. lithophilum		rare
Poaceae	Panicum sumatrense		rarer than rare
Poaceae	Panicum trichoides		rare
Asteraceae	Panphalea heterophylla		rarer than rare
Fabaceae	Parkinsonia texana var. texana		rare
Caryophyllaceae	Paronychia fastigiata var. nuttallii		uncommon
Caryophyllaceae	Paronychia jonesii		uncommon
Caryophyllaceae	Paronychia lundelliorum		rare
Poaceae	Paspalum almum		rare
Poaceae	Paspalum convexum		rare
Poaceae	Paspalum coryphaeum		rare
Poaceae	Paspalum hartwegianum		uncommon
Poaceae	Paspalum modestum		uncommon
Poaceae	Paspalum notatum var. saurae		common
Poaceae	Paspalum orbiculatum		rarer than rare
Poaceae	Paspalum racemosum		rarer than rare
Poaceae	Paspalum setaceum var. rigidifolium		uncommon
Poaceae	Paspalum setaceum var. villosissimum		common
Poaceae	Paspalum unispicatum		rare
Poaceae	Paspalum wrightii		uncommon
Passifloraceae	Passiflora ×alatocaerulea		rare
Passifloraceae	Passiflora filipes		rare
Passifloraceae	Passiflora foetida var. isthmia		rarer than rare
Valerianaceae	Patrinia villosa		rarer than rare
Apocynaceae	Pauciflora sagittifolia		rare
Brassicaceae	Paysonia auriculata		uncommon
Brassicaceae	Paysonia lasiocarpa ssp. berlandieri		uncommon
Brassicaceae	Paysonia lasiocarpa ssp. lasiocarpa		common
Asteraceae	Pectis angustifolia var. fastigiata		rare
Asteraceae	Pectis angustifolia var. tenella		rare
Fabaceae	Pediomelum cyphocalyx		rare
Fabaceae	Pediomelum hypogaeum var. hypogaeum		rare
Fabaceae	Pediomelum hypogaeum var. scaposum		common
Fabaceae	Pediomelum latestipulatum var. appressum		rare
Fabaceae	Pediomelum latestipulatum var. latestipulatum		common
Fabaceae	Pediomelum reverchonii		rare
Nitrariaceae	Peganum harmala		rare
Thelypteridaceae	Pelazoneuron abruptum var. grande		rare
Pteridaceae	Pellaea gastonyi		rare
Pteridaceae	Pellaea glabella ssp. missouriensis		rare
Plantaginaceae	Penstemon buckleyi		rare
Plantaginaceae	Penstemon cobaea var. purpureus		uncommon
Plantaginaceae	Penstemon fendleri		rare
Plantaginaceae	Penstemon guadalupensis		rare
Plantaginaceae	Penstemon oklahomensis		uncommon
Asteraceae	Pentanema britannicum		rarer than rare
Piperaceae	Peperomia amplexicaulis		rarer than rare
Piperaceae	Peperomia obtusifolia var. floridana		rare
Lamiaceae	Perilla scabra		common
Asteraceae	Peripleura arida		rarer than rare
Asteraceae	Petasites japonicus		rarer than rare
Lamiaceae	Petitia domingensis		rarer than rare
Solanaceae	Petunia ×atkinsiana		uncommon
Hydrophyllaceae	Phacelia austrotexana		common
Hydrophyllaceae	Phacelia dubia var. rionensis		rare
Hydrophyllaceae	Phacelia laxa		uncommon
Hydrophyllaceae	Phacelia patuliflora		common
Hydrophyllaceae	Phacelia purshii		common
Hydrophyllaceae	Phacelia robusta		rare
Hydrophyllaceae	Phacelia strictiflora var. connexa		uncommon
Hydrophyllaceae	Phacelia strictiflora var. lundelliana		uncommon
Hydrophyllaceae	Phacelia strictiflora var. strictiflora		uncommon
Hydrophyllaceae	Phacelia teucriifolia		rare
Poaceae	Phalaris brachystachys		rarer than rare
Fabaceae	Phaseolus lunatus		rarer than rare
Fabaceae	Phaseolus texensis		rare
Orobanchaceae	Phelipanche nana		uncommon
Hydrangeaceae	Philadelphus texensis var. ernestii		rare
Poaceae	Phleum paniculatum		rarer than rare
Polemoniaceae	Phlox divaricata		common
Polemoniaceae	Phlox drummondii var. drummondii		uncommon
Polemoniaceae	Phlox drummondii var. mcallisteri		common
Polemoniaceae	Phlox drummondii var. tharpii		common
Polemoniaceae	Phlox oklahomensis		rare
Polemoniaceae	Phlox pilosa		common
Polemoniaceae	Phlox pilosa ssp. latisepala		uncommon
Polemoniaceae	Phlox pilosa ssp. pulcherrima		common
Polemoniaceae	Phlox pilosa ssp. riparia		common
Asteraceae	Phonus lanatus		rare
Rosaceae	Photinia ×fraseri		rarer than rare
Phyllanthaceae	Phyllanthus angustifolius		rare
Phyllanthaceae	Phyllanthus fluitans		rare
Phyllanthaceae	Phyllanthus niruri		rare
Poaceae	Phyllostachys edulis		rarer than rare
Poaceae	Phyllostachys flexuosa		rarer than rare
Poaceae	Phyllostachys rubromarginata		rarer than rare
Poaceae	Phyllostachys sulphurea var. viridis		rarer than rare
Poaceae	Phyllostachys viridiglaucescens		rarer than rare
Solanaceae	Physalis cinerascens var. variovestita		uncommon
Solanaceae	Physalis elliottii var. elliottii		uncommon
Solanaceae	Physalis fendleri		rare
Solanaceae	Physalis longifolia var. texana		rare
Solanaceae	Physalis minima		rarer than rare
Brassicaceae	Physaria argyraea ssp. argyraea		common
Brassicaceae	Physaria gracilis ssp. nuttallii		uncommon
Brassicaceae	Physaria sessilis		rare
Asteraceae	Picris rhagadioloides		rarer than rare
Urticaceae	Pilea involucrata		questionable
Urticaceae	Pilea trianthemoides		rarer than rare
Pinaceae	Pinus halepensis		rarer than rare
Pinaceae	Pinus wallichiana		rarer than rare
Turneraceae	Piriqueta glabra		uncommon
Turneraceae	Piriqueta viridis		common
Plantaginaceae	Plantago uliginosa		rare
Lamiaceae	Plectranthus parviflorus		rarer than rare
Lamiaceae	Plectranthus scutellarioides		rarer than rare
Polypodiaceae	Pleopeltis astrolepis		historical
Asteraceae	Pluchea odorata		common
Asteraceae	Pluchea sagittalis		rarer than rare
Asteraceae	Pluchea yucatanensis		rare
Poaceae	Poa bigelovii		questionable
Poaceae	Poa iconia var. iconia		rare
Poaceae	Poa secunda var. secunda		rarer than rare
Cleomaceae	Polanisia erosa ssp. breviglandulosa		uncommon
Ruscaceae	Polygonatum biflorum var. hebetifolium		rare
Polygonaceae	Polygonum polycnemoides		rarer than rare
Polygonaceae	Polygonum rurivagum		rarer than rare
Polygonaceae	Polygonum striatulum		rare
Asteraceae	Polymnia cossatotensis		rare
Polypodiaceae	Polypodium ×incognitum		rare
Apiaceae	Polytaenia albiflora		questionable
Poaceae	Polytrias indica		rarer than rare
Fabaceae	Pomaria austrotexana		rare
Salicaceae	Populus ×canadensis		rare
Salicaceae	Populus ×rouleauiana		rarer than rare
Salicaceae	Populus ×smithii		rare
Salicaceae	Populus suaveolens		rarer than rare
Salicaceae	Populus tomentosa		rarer than rare
Rosaceae	Prunus tenella		rarer than rare
Malvaceae	Pseudabutilon umbellatum		rare
Poaceae	Pseudoeriocoma eminens		rare
Asteraceae	Pseudognaphalium austrotexanum		rare
Asteraceae	Pseudognaphalium canescens		rare
Asteraceae	Pseudognaphalium domingense		rarer than rare
Lycopodiaceae	Pseudolycopodiella species 1		common
Plumbaginaceae	Psylliostachys leptostachyus		rarer than rare
Rutaceae	Ptelea trifoliata		common
Rutaceae	Ptelea trifoliata var. 1 [=polyadenia]		rare
Rutaceae	Ptelea trifoliata var. persicifolia		uncommon
Pteridaceae	Pteris ×delchampsii		rare
Pteridaceae	Pteris ensiformis		questionable
Pteridaceae	Pteris grandifolia		historical
Pteridaceae	Pteris parkeri		rare
Pteridaceae	Pteris plumieri		rare
Apiaceae	Ptilimnium texense		uncommon
Poaceae	Puccinellia rupestris		rarer than rare
Boraginaceae	Pulmonaria officinalis		rarer than rare
Lamiaceae	Pycnanthemum monotrichum		historical
Lamiaceae	Pycnanthemum muticum		common
Lamiaceae	Pycnanthemum muticum var. 1		common
Rosaceae	Pyracantha atalantioides		rarer than rare
Rosaceae	Pyrus betulifolia		rare
Rosaceae	Pyrus elaeagnifolia		rarer than rare
Rosaceae	Pyrus neoserrulata		rarer than rare
Fagaceae	Quercus ×drummondii		uncommon
Fagaceae	Quercus ×sternbergii		common
Fagaceae	Quercus havardii		rare
Rubiaceae	Randia rhagocarpa		uncommon
Ranunculaceae	Ranunculus marginatus var. trachycarpus		common
Ranunculaceae	Ranunculus subrigidus		rare
Asteraceae	Ratibida peduncularis var. picta		uncommon
Asteraceae	Ratibida tagetes		rarer than rare
Polygonaceae	Reynoutria ×bohemica		rare
Melastomataceae	Rhexia ×brevibracteata		rare
Polygalaceae	Rhinotropis nitida var. goliadensis		uncommon
Polygalaceae	Rhinotropis nitida var. tamaulipana		uncommon
Crassulaceae	Rhodiola rosea ssp. roanensis		historical
Crassulaceae	Rhodiola rosea ssp. rosea		rare
Ericaceae	Rhododendron ×bakeri		rare
Ericaceae	Rhododendron ×pennsylvanicum		rare
Ericaceae	Rhododendron ×welleslyanum		rare
Ericaceae	Rhododendron coryi		common
Ericaceae	Rhododendron japonicum		questionable
Ericaceae	Rhododendron viscosum var. montanum		uncommon
Anacardiaceae	Rhus ×borealis		rare
Fabaceae	Rhynchosia phaseoloides		rarer than rare
Fabaceae	Rhynchosia reticulata var. reticulata		rarer than rare
Fabaceae	Rhynchosia texana		common
Cyperaceae	Rhynchospora croatanensis		rare
Cyperaceae	Rhynchospora mesoatlantica		uncommon
Cyperaceae	Rhynchospora setosa		rare
Grossulariaceae	Ribes oxyacanthoides var. oxyacanthoides		rarer than rare
Rubiaceae	Richardia tricocca		common
Fabaceae	Robinia ×ambigua		rare
Fabaceae	Robinia ×longiloba		rare
Fabaceae	Robinia ×margaretiae		rare
Brassicaceae	Rorippa ×anceps		rarer than rare
Brassicaceae	Rorippa amphibia		rarer than rare
Rosaceae	Rosa ×alba		rarer than rare
Rosaceae	Rosa ×borboniana		rarer than rare
Rosaceae	Rosa ×damascena		rarer than rare
Rosaceae	Rosa ×dumetorum		rarer than rare
Rosaceae	Rosa ×odorata		rarer than rare
Rosaceae	Rosa cinnamomea		rare
Rosaceae	Rosa lucidissima		rarer than rare
Rosaceae	Rosa memoryae		rare
Rosaceae	Rosa rubiginosa var. rubiginosa		uncommon
Rosaceae	Rosa virginiana ssp. minidentata		rare
Urticaceae	Rousselia humilis		rarer than rare
Rubiaceae	Rubia tinctorum		rarer than rare
Rosaceae	Rubus celer		rare
Rosaceae	Rubus orarius		uncommon
Rosaceae	Rubus satis		uncommon
Asteraceae	Rudbeckia bicolor		uncommon
Asteraceae	Rudbeckia laciniata var. heterophylla		rare
Asteraceae	Rudbeckia triloba var. pinnatiloba		rare
Asteraceae	Rudbeckia triloba var. rupestris		uncommon
Acanthaceae	Ruellia corzoi		rare
Acanthaceae	Ruellia dipteracanthus		rarer than rare
Acanthaceae	Ruellia metziae		uncommon
Acanthaceae	Ruellia occidentalis		uncommon
Acanthaceae	Ruellia yucatana		common
Polygonaceae	Rumex cuneifolius		rarer than rare
Polygonaceae	Rumex hymenosepalus		rare
Polygonaceae	Rumex spiralis		uncommon
Polygonaceae	Rumex violascens		no
Plantaginaceae	Russelia equisetiformis		rarer than rare
Gentianaceae	Sabatia formosa		rare
Malvaceae	Sabdariffa gossypiifolia		rarer than rare
Orchidaceae	Sacoila squamulosa		rare
Alismataceae	Sagittaria ambigua		rare
Alismataceae	Sagittaria guayanensis ssp. guayanensis		rare
Salicaceae	Salix ×beschelii		rare
Salicaceae	Salix ×conifera		uncommon
Salicaceae	Salix ×jesupii		rarer than rare
Salicaceae	Salix ×meyeriana		rare
Salicaceae	Salix ×pendulina		uncommon
Salicaceae	Salix ×rubens		common
Salicaceae	Salix ×sepulcralis		rare
Salicaceae	Salix eleagnos		rarer than rare
Salicaceae	Salix famelica		no
Salicaceae	Salix humboldtiana		questionable
Salicaceae	Salix thurberi		rare
Chenopodiaceae	Salsola kali		uncommon
Chenopodiaceae	Salsola pontica		uncommon
Lamiaceae	Salvia roemeriana		rare
Lamiaceae	Salvia splendens		rarer than rare
Salviniaceae	Salvinia natans		rarer than rare
Asteraceae	Sanvitalia ocymoides		rare
Sapindaceae	Sapindus drummondii var. glabratus		uncommon
Sarraceniaceae	Sarracenia chrysea		rare
Sarraceniaceae	Sarracenia wherryi		rare
Cyperaceae	Schoenoplectiella purshiana var. williamsii		rare
Cyperaceae	Schoenoplectus pungens var. longispicatus		common
Hyacinthaceae	Scilla amoena		rarer than rare
Cyperaceae	Scleria eggersiana		rare
Cyperaceae	Scleria vaginata		no
Asteraceae	Sclerocarpus uniserialis var. austrotexanus		uncommon
Poaceae	Scleropogon brevifolius		rare
Asteraceae	Scorzoneroides autumnalis ssp. autumnalis		rare
Lamiaceae	Scutellaria bushii		uncommon
Lamiaceae	Scutellaria drummondii var. drummondii		common
Lamiaceae	Scutellaria drummondii var. edwardsiana		common
Lamiaceae	Scutellaria drummondii var. runyonii		rare
Lamiaceae	Scutellaria elliptica var. glandulosa		common
Lamiaceae	Scutellaria resinosa		uncommon
Fabaceae	Securigera securidaca		questionable
Crassulaceae	Sedum diffusum		rare
Asteraceae	Senecio brasiliensis var. tripartitus		rarer than rare
Asteraceae	Senecio quaylei		rare
Polygalaceae	Senega longicaulis		rarer than rare
Fabaceae	Senegalia ×emoryana		rare
Fabaceae	Senegalia ×turneri		rare
Fabaceae	Senegalia insuavis		rare
Fabaceae	Senna angustisiliqua		rarer than rare
Fabaceae	Senna atomaria		rarer than rare
Fabaceae	Senna didymobotrya		rarer than rare
Fabaceae	Senna pendula var. advena		rarer than rare
Fabaceae	Senna siamea		rarer than rare
Fabaceae	Senna species 1		rare
Fabaceae	Senna spectabilis var. spectabilis		planted
Sapindaceae	Serjania dissecta		rare
Sapindaceae	Serjania incisa		rare
Aizoaceae	Sesuvium crithmoides		rarer than rare
Aizoaceae	Sesuvium humifusum		rare
Poaceae	Setaria firmula		common
Poaceae	Setaria leucopila		common
Poaceae	Setaria macrostachya		common
Poaceae	Setaria megaphylla		rarer than rare
Poaceae	Setaria ramiseta		uncommon
Poaceae	Setaria rariflora		rarer than rare
Poaceae	Setaria reverchonii		rare
Poaceae	Setaria setosa		rarer than rare
Poaceae	Setaria texana		common
Poaceae	Setaria villosissima		rare
Orobanchaceae	Seymeria bipinnatisecta		rare
Malvaceae	Sida antillensis		uncommon
Malvaceae	Sida elliottii var. parviflora		uncommon
Malvaceae	Sida littoralis		rare
Malvaceae	Sida rubromarginata		rare
Malvaceae	Sida santaremensis		rare
Malvaceae	Sida tragiifolia		rare
Malvaceae	Sidastrum paniculatum		rare
Asteraceae	Sideranthus glaberrimus		uncommon
Asteraceae	Sideranthus spinulosus var. austrotexanus		rare
Asteraceae	Sideranthus texanus var. orientalis		uncommon
Sapotaceae	Sideroxylon lanuginosum ssp. albicans		common
Sapotaceae	Sideroxylon lanuginosum ssp. rigidum		rare
Fabaceae	Sigmoidotropis antillana		rare
Caryophyllaceae	Silene ×hampeana		rarer than rare
Caryophyllaceae	Silene chlorantha		rarer than rare
Caryophyllaceae	Silene nemoralis		rarer than rare
Brassicaceae	Sisymbrium turczaninowii		rarer than rare
Iridaceae	Sisyrinchium arenicola		uncommon
Iridaceae	Sisyrinchium corymbosum		rare
Iridaceae	Sisyrinchium dimorphum		rare
Iridaceae	Sisyrinchium helleri		uncommon
Iridaceae	Sisyrinchium species 3		uncommon
Iridaceae	Sisyrinchium varians		rare
Smilacaceae	Smilax leptanthera		rare
Smilacaceae	Smilax renifolia		questionable
Solanaceae	Solanum citrullifolium var. citrullifolium		rarer than rare
Solanaceae	Solanum perplexum		uncommon
Asteraceae	Solidago altiplanities		rare
Asteraceae	Solidago dispersa		common
Asteraceae	Solidago gigantea var. shinnersii		common
Asteraceae	Solidago pallescens		rare
Asteraceae	Solidago petiolaris var. wardii		uncommon
Asteraceae	Solidago species 1		rare
Asteraceae	Solidago species 2		rare
Asteraceae	Solidago species 3		rare
Asteraceae	Solidago ulmifolia var. palmeri		uncommon
Asteraceae	Solidago ulmifolia var. ulmifolia		common
Poaceae	Sorghum ×almum		uncommon
Caryophyllaceae	Spergularia media var. media		rarer than rare
Caryophyllaceae	Spergularia platensis var. platensis		rarer than rare
Apiaceae	Spermolepis diffusa		common
Apiaceae	Spermolepis laevis		rare
Malvaceae	Sphaeralcea pedatifida		common
Cyatheaceae	Sphaeropteris cooperi		rarer than rare
Poaceae	Sphenopholis ×pallens		rare
Poaceae	Sphenopholis longiflora		common
Rosaceae	Spiraea ×subcanescens		rare
Rosaceae	Spiraea ×vanhouttei		rare
Rosaceae	Spiraea nipponica		rarer than rare
Rosaceae	Spiraea trilobata		rarer than rare
Orchidaceae	Spiranthes ×kapnosperia		rare
Orchidaceae	Spiranthes niklasii		uncommon
Poaceae	Sporobolus ×eatonianus		rare
Poaceae	Sporobolus buckleyi		uncommon
Poaceae	Sporobolus compositus var. macer		uncommon
Poaceae	Sporobolus diandrus		questionable
Poaceae	Sporobolus giganteus		rare
Poaceae	Sporobolus texanus		rare
Poaceae	Stapfochloa ciliata		common
Poaceae	Stapfochloa elata		historical
Poaceae	Stapfochloa grandiflora		rarer than rare
Poaceae	Stenotaphrum dimidiatum		rarer than rare
Potamogetonaceae	Stuckenia filiformis var. alpina		historical
Potamogetonaceae	Stuckenia striata		rare
Potamogetonaceae	Stuckenia vaginata		rare
Fabaceae	Stylosanthes viscosa		uncommon
Cornaceae	Swida ×arnoldiana		rare
Asteraceae	Symphyotrichum ×parisinum		rare
Asteraceae	Symphyotrichum ×priceae		rare
Asteraceae	Symphyotrichum attenuatum		uncommon
Asteraceae	Symphyotrichum ciliatum		questionable
Asteraceae	Symphyotrichum dumosum var. 1		rare
Asteraceae	Symphyotrichum ericoides var. pansum		rare
Asteraceae	Symphyotrichum hesperium		rare
Asteraceae	Symphyotrichum patens var. terranigrum		uncommon
Asteraceae	Symphyotrichum racemosum var. subdumosum		uncommon
Asteraceae	Symphyotrichum schistosum		rare
Oleaceae	Syringa ×persica		rarer than rare
Poaceae	Taeniatherum caput-medusae ssp. caput-medusae		rarer than rare
Asteraceae	Tagetes filifolia		rarer than rare
Talinaceae	Talinum polygaloides		common
Tamaricaceae	Tamarix africana		uncommon
Tamaricaceae	Tamarix aphylla		uncommon
Cleomaceae	Tarenaya diffusa		rarer than rare
Tectariaceae	Tectaria ×amesiana		extirpated
Tectariaceae	Tectaria coriandrifolia		historical
Fabaceae	Tephrosia ×intermedia		rare
Fabaceae	Tephrosia ×varioforma		rare
Fabaceae	Tephrosia angustissima		extirpated
Fabaceae	Tephrosia cinerea		rarer than rare
Fabaceae	Tephrosia mohrii		uncommon
Fabaceae	Tephrosia potosina		questionable
Lamiaceae	Tetraclea coulteri		rare
Asteraceae	Tetragonotheca repanda		common
Asteraceae	Tetragonotheca texana		rare
Asteraceae	Tetraneuris linearifolia var. arenicola		rare
Asteraceae	Tetraneuris scaposa var. argyrocaulon		rare
Ranunculaceae	Thalictrum hepaticum		rare
Rutaceae	Thamnosma texana var. purpurea		rare
Apiaceae	Thaspium species 1		rare
Asteraceae	Thelesperma nuecense		common
Cactaceae	Thelocactus bicolor var. bicolor		rare
Poaceae	Themeda quadrivalvis		rarer than rare
Poaceae	Themeda triandra		rarer than rare
Poaceae	Thinopyrum obtusiflorum		rarer than rare
Asteraceae	Thymophylla tenuiloba var. tenuiloba		common
Asteraceae	Thymophylla tenuiloba var. treculii		uncommon
Asteraceae	Thymophylla tephroleuca		questionable
Fabaceae	Ticanto crista		no
Apiaceae	Tiedemannia filiformis ssp. greenmanii		rare
Malvaceae	Tilia ×europaea		rarer than rare
Malvaceae	Tilia petiolaris		rarer than rare
Malvaceae	Tilia tomentosa		rarer than rare
Bromeliaceae	Tillandsia fasciculata var. clavispica		rare
Apiaceae	Torilis africana		rarer than rare
Arecaceae	Trachycarpus fortunei		rarer than rare
Poaceae	Trachypogon spicatus		common
Commelinaceae	Tradescantia buckleyi		rare
Commelinaceae	Tradescantia crassula		rarer than rare
Commelinaceae	Tradescantia occidentalis var. melanthera		common
Poaceae	Tragus heptaneuron		rarer than rare
Tofieldiaceae	Triantha novacaesariensis		rare
Poaceae	Trichachne hitchcockii		rare
Rubiaceae	Trichogalium arkansanum var. 1 [=pubiflorum]		rare
Rubiaceae	Trichogalium circaezans var. circaezans		common
Rubiaceae	Trichogalium circaezans var. hypomalacum		common
Rubiaceae	Trichogalium pilosum var. pilosum		common
Rubiaceae	Trichogalium pilosum var. puncticulosum		common
Rubiaceae	Trichogalium virgatum		common
Poaceae	Trichoneura elegans		uncommon
Poaceae	Tridentopsis buckleyana		rare
Poaceae	Tridentopsis elongata		rare
Fabaceae	Trifolium amphianthum		historical
Fabaceae	Trifolium bejariense		common
Fabaceae	Trifolium spumosum		rarer than rare
Asteraceae	Trilisa ×subpaniculata		rare
Trilliaceae	Trillium pusillum var. 3		rare
Caprifoliaceae	Triosteum angustifolium var. eamesii		rare
Poaceae	Tripidium bengalense		rarer than rare
Asteraceae	Tripleurospermum maritimum ssp. maritimum		rarer than rare
Poaceae	Triraphis mollis		rarer than rare
Poaceae	Trisetaria aurea		rarer than rare
Poaceae	Triticum spelta		rarer than rare
Ulmaceae	Ulmus ×intermedia		rarer than rare
Ulmaceae	Ulmus procera		rarer than rare
Poaceae	Urochloa brizantha		rare
Poaceae	Urochloa ciliatissima		common
Poaceae	Urochloa deflexa		rarer than rare
Poaceae	Urochloa dictyoneura		rarer than rare
Poaceae	Urochloa oligobrachiata		rare
Poaceae	Urochloa trichopus		rare
Urticaceae	Urtica ballotifolia		rarer than rare
Lentibulariaceae	Utricularia tenuicaulis		rare
Ericaceae	Vaccinium ×atlanticum		rare
Ericaceae	Vaccinium ×carolinianum		rare
Ericaceae	Vaccinium ×dobbinii		rare
Ericaceae	Vaccinium ×margaretiae		rare
Ericaceae	Vaccinium ×marianum		rare
Ericaceae	Vaccinium ashei		common
Ericaceae	Vaccinium corymbosum		common
Ericaceae	Vaccinium fuscatum		common
Valerianaceae	Valeriana uliginosa		extirpated
Valerianaceae	Valerianella florifera		uncommon
Valerianaceae	Valerianella ozarkana		uncommon
Valerianaceae	Valerianella palmeri		rare
Valerianaceae	Valerianella stenocarpa		uncommon
Hydrocharitaceae	Vallisneria ×pseudorosulata		uncommon
Hydrocharitaceae	Vallisneria spiralis		rare
Verbenaceae	Verbena cloverae		common
Verbenaceae	Verbena runyonii		rare
Asteraceae	Vernonia ×concinna		rare
Asteraceae	Vernonia ×dissimilis		rare
Asteraceae	Vernonia ×guadalupensis		rare
Asteraceae	Vernonia ×illinoensis		rare
Asteraceae	Vernonia ×vulturina		rare
Asteraceae	Vernonia angustifolia var. scaberrima		uncommon
Plantaginaceae	Veronica serpyllifolia var. humifusa		historical
Viburnaceae	Viburnum ×rhytidophylloides		rarer than rare
Viburnaceae	Viburnum buddleifolium		rarer than rare
Viburnaceae	Viburnum suspensum		rarer than rare
Viburnaceae	Viburnum tinus		rarer than rare
Fabaceae	Vicia articulata		rarer than rare
Fabaceae	Vicia bithynica		rarer than rare
Fabaceae	Vicia cracca var. cracca		common
Fabaceae	Vicia disperma		rarer than rare
Fabaceae	Vicia ludoviciana var. 1 ('louisianica')		uncommon
Fabaceae	Vicia ludoviciana var. laxiflora		common
Fabaceae	Vicia ludoviciana var. occidentalis		rare
Fabaceae	Vicia ludoviciana var. texana		common
Fabaceae	Vigna angularis		rarer than rare
Violaceae	Viola ×williamsii		rarer than rare
Violaceae	Viola ×wittrockiana		rarer than rare
Violaceae	Viola chalcosperma		rare
Violaceae	Viola domestica		rare
Violaceae	Viola emarginata var. 1 ["phasmatifolia" variant]		uncommon
Violaceae	Viola emarginata var. 2 ["deltate" variant]		uncommon
Violaceae	Viola emarginata var. 3 ["Lower Midwest" variant]		common
Violaceae	Viola emarginata var. 5 ["xiphophylla" variant]		rare
Violaceae	Viola floridana var. 1 ["peninsular Florida" variant]		uncommon
Violaceae	Viola floridana var. 2 ["rosacea" variant]		rare
Violaceae	Viola impostor		uncommon
Violaceae	Viola latiuscula		questionable
Violaceae	Viola palmata var. 1 ["pseudostoneana" variant]		uncommon
Violaceae	Viola palmata var. 2 ["glabrate palmata" variant]		uncommon
Violaceae	Viola palmata var. 3 ["Red Hills palmata" variant]		uncommon
Violaceae	Viola palmata var. 4 ["avipes" variant]		rare
Violaceae	Viola patrinii		rare
Violaceae	Viola pratincola		uncommon
Violaceae	Viola retusa		rare
Violaceae	Viola sororia var. 1 ["glabrous" variant]		common
Violaceae	Viola sororia var. 2 ["hirsutuloides" variant]		rare
Violaceae	Viola species 2 ["pedatiloba"]		rare
Violaceae	Viola species 5 ["Gulf Coastal Plain edulis"]		uncommon
Violaceae	Viola subsinuata var. 1 ["Chapel Hill" variant]		uncommon
Lamiaceae	Vitex glabrata		rarer than rare
Vitaceae	Vitis ×alexanderi		rare
Vitaceae	Vitis monticola		rare
Lamiaceae	Volkameria glabra		rarer than rare
Diervillaceae	Weigela japonica		rarer than rare
Poaceae	Willkommia texana var. texana		uncommon
Malvaceae	Wissadula hernandioides		uncommon
Malvaceae	Wissadula parvifolia		rare
Malvaceae	Wissadula periplocifolia		rare
Fabaceae	Wisteria frutescens		common
Araceae	Wolffiella oblonga		uncommon
Asteraceae	Xanthium ambrosioides		rarer than rare
Asteraceae	Xanthium speciosum		uncommon
Xyridaceae	Xyris spathifolia		rare
Acanthaceae	Yeatesia platystegia		rare
Agavaceae	Yucca gigantea		rarer than rare
Agavaceae	Yucca tenuistyla		rare
Araceae	Zantedeschia aethiopica		rarer than rare
Poaceae	Zea mays ssp. parviglumis		rarer than rare
Poaceae	Zea mexicana		rarer than rare
Gentianaceae	Zeltnera breviflora		uncommon
Amaryllidaceae	Zephyranthes bifida		rarer than rare
Amaryllidaceae	Zephyranthes jonesii		rare
Amaryllidaceae	Zephyranthes longifolia		questionable
Amaryllidaceae	Zephyranthes refugiensis		rare
Amaryllidaceae	Zephyranthes smallii		historical
Amaryllidaceae	Zephyranthes traubii		rare