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Flora of the Southeastern United States
2022 rev. 2 Edition
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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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1084 taxa lack photos entirely
Family
Taxon
Region
Most common status
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
Aceraceae
Acer pictum ssp. mono
no
Pteridaceae
Adiantum villosum
rarer than rare
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 lophantha
rare
Poaceae
Agrostis altissima
rare
Fabaceae
Alhagi maurorum
questionable
Alliaceae
Allium elmendorfii
rare
Alliaceae
Allium species 3
uncommon
Poaceae
Alloteropsis cimicina
rarer than rare
Poaceae
Alopecurus bulbosus
rarer than rare
Poaceae
Alopecurus creticus
rarer than rare
Verbenaceae
Aloysia gratissima var. schulziae
common
Amaranthaceae
Amaranthus crispus
rarer than rare
Amaranthaceae
Amaranthus scleropoides
common
Amaranthaceae
Amaranthus tamaulipensis
rare
Asteraceae
Ambrosia confertiflora
uncommon
Asteraceae
Ambrosia tomentosa
rarer than rare
Fabaceae
Amorpha laevigata
rare
Poaceae
Amphibromus scabrivalvis var. scabrivalvis
rarer than rare
Poaceae
Andropogon species 2
rare
Malvaceae
Anoda pentaschista
rare
Asteraceae
Aphanostephus pilosus
rare
Asteraceae
Aphanostephus riddellii
common
Asteraceae
Aphanostephus skirrhobasis var. kidderi
common
Asteraceae
Aphanostephus skirrhobasis var. thallasius
common
Papaveraceae
Argemone aenea
uncommon
Euphorbiaceae
Argythamnia aphoroides
rare
Euphorbiaceae
Argythamnia mercurialina var. pilosissima
rare
Euphorbiaceae
Argythamnia serrata
rare
Euphorbiaceae
Argythamnia simulans
rare
Araceae
Arisaema species 1
uncommon
Asteraceae
Artemisia carruthii
rare
Saxifragaceae
Astilbe crenatiloba
historical
Fabaceae
Astragalus brazoensis
uncommon
Fabaceae
Astragalus emoryanus var. emoryanus
rare
Fabaceae
Astragalus gracilis
rare
Fabaceae
Astragalus lindheimeri
common
Fabaceae
Astragalus missouriensis var. missouriensis
rare
Fabaceae
Astragalus nuttallianus var. trichocarpus
common
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 var. coahuilensis
rare
Chenopodiaceae
Atriplex argentea var. argentea
rarer than rare
Chenopodiaceae
Atriplex argentea var. expansa
rare
Chenopodiaceae
Atriplex klebergorum
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
rarer than rare
Asteraceae
Berlandiera humilis
rare
Asteraceae
Berlandiera pumila var. scabrella
common
Apiaceae
Berula erecta
rare
Asteraceae
Boltonia asteroides var. asteroides
rare
Asteraceae
Boltonia asteroides var. latisquama
common
Linderniaceae
Bonnaya antipoda
rarer than rare
Linderniaceae
Bonnaya ciliata
rarer than rare
Poaceae
Bothriochloa exaristata
uncommon
Poaceae
Bouteloua dimorpha
rarer than rare
Poaceae
Brachypodium sylvaticum ssp. 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
Rhizophoraceae
Bruguiera gymnorhiza
rarer than rare
Crassulaceae
Bryophyllum daigremontianum
common
Crassulaceae
Bryophyllum gastonis-bonnieri
rarer than rare
Scrophulariaceae
Buddleja indica
rarer than rare
Scrophulariaceae
Buddleja madagascariensis
rarer than rare
Scrophulariaceae
Buddleja racemosa ssp. incana
rare
Cyperaceae
Bulbostylis hispidula
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
Fabaceae
Calliandra biflora
rare
Malvaceae
Callirhoe involucrata var. lineariloba
common
Polypodiaceae
Campyloneurum amphostenon
questionable
Polypodiaceae
Campyloneurum brevifolium
questionable
Brassicaceae
Cardamine flagellifera var. hugeri
rare
Brassicaceae
Cardamine furcata
rare
Cyperaceae
Carex aestivaliformis
rare
Cyperaceae
Carex douglasii
rarer than rare
Cyperaceae
Carex latebracteata
rare
Cyperaceae
Carex macrostachys
rarer than rare
Cyperaceae
Carex melanostachya
rarer than rare
Cyperaceae
Carex muricata ssp. lamprocarpa
rarer than rare
Cyperaceae
Carex ozarkana
common
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
Cyperaceae
Carex viridula ssp. oedocarpa
rarer than rare
Asteraceae
Carlina vulgaris ssp. vulgaris
rarer than rare
Fabaceae
Cassia afrofistula
rarer than rare
Fabaceae
Cassia grandis
questionable
Fabaceae
Cassia javanica ssp. agnes
questionable
Amaranthaceae
Celosia palmeri
rare
Asteraceae
Centaurea ×moncktonii
rarer than rare
Asteraceae
Centaurea ×varnensis
rare
Asteraceae
Centaurea diluta
rarer than rare
Fabaceae
Centrosema sagittatum
rarer than rare
Rubiaceae
Cephalanthus salicifolius
rare
Ceratophyllaceae
Ceratophyllum australe
rare
Pteridaceae
Ceratopteris richardii
rare
Pedaliaceae
Ceratotheca triloba
rarer than rare
Fabaceae
Cercis canadensis var. mexicana
rare
Apiaceae
Chaerophyllum temulem
rarer than rare
Asteraceae
Chaetopappa imberbis
rare
Asteraceae
Chaetopappa modesta
rare
Fabaceae
Chamaecrista 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 thyoides var. henryae
uncommon
Solanaceae
Chamaesaracha coronopus
uncommon
Solanaceae
Chamaesaracha darcyi
uncommon
Solanaceae
Chamaesaracha edwardsiana
rare
Solanaceae
Chamaesaracha sordida
rare
Asteraceae
Chaptalia carduacea
rare
Chenopodiaceae
Chenopodium album var. microphyllum
rarer than rare
Chenopodiaceae
Chenopodium berlandieri var. berlandieri
uncommon
Chenopodiaceae
Chenopodium berlandieri var. sinuatum
rare
Bignoniaceae
Chilopsis linearis var. tomenticaulis
rare
Poaceae
Chloris pilosa
rarer than rare
Apocynaceae
Chthamalia species 2 [=brevicoronata]
rare
Apiaceae
Cicuta occidentalis
questionable
Onagraceae
Circaea ×sterilis
uncommon
Asteraceae
Cirsium horridulum var. megacanthum
common
Asteraceae
Cirsium ochrocentrum
uncommon
Rutaceae
Citrus ×aurantiifolia
rare
Rutaceae
Citrus ×jambhiri
rarer than rare
Rutaceae
Citrus ×limon
rare
Rutaceae
Citrus ×paradisi
rare
Rutaceae
Citrus ×sinensis
uncommon
Rutaceae
Citrus limonia
rarer than rare
Rutaceae
Citrus reticulata
rare
Cyperaceae
Cladium californicum
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
Lamiaceae
Clinopodium species 1
rare
Commelinaceae
Commelina gigas
rare
Rhamnaceae
Condalia spathulata
rare
Asteraceae
Conoclinium dichotomum
uncommon
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 species 1
common
Cactaceae
Coryphantha pottsiana
rare
Asteraceae
Cosmos caudatus
rarer than rare
Crassulaceae
Crassula drummondii
uncommon
Rosaceae
Crataegus ×abbreviata
rare
Rosaceae
Crataegus ×amicalis
rare
Rosaceae
Crataegus ×anamesa
uncommon
Rosaceae
Crataegus ×antimina
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 ×delawarensis
rare
Rosaceae
Crataegus ×disperma
rare
Rosaceae
Crataegus ×dispessa
rare
Rosaceae
Crataegus ×enucleata
rare
Rosaceae
Crataegus ×fecunda
rare
Rosaceae
Crataegus ×harveyana
rare
Rosaceae
Crataegus ×lettermanii
rare
Rosaceae
Crataegus ×levis
rare
Rosaceae
Crataegus ×lucorum
rare
Rosaceae
Crataegus ×mohrii
uncommon
Rosaceae
Crataegus ×nitida
rare
Rosaceae
Crataegus ×notha
rare
Rosaceae
Crataegus ×poliophylla
rare
Rosaceae
Crataegus ×spes-aestatum
historical
Rosaceae
Crataegus ×stenosepala
rare
Rosaceae
Crataegus ×sutherlandensis
rare
Rosaceae
Crataegus ×thermopegaea
rare
Rosaceae
Crataegus ×tripartita
rare
Rosaceae
Crataegus ×verruculosa
rare
Rosaceae
Crataegus jesupii
rare
Rosaceae
Crataegus margaretiae var. angustifolia
rare
Rosaceae
Crataegus margaretiae var. brownii
rare
Rosaceae
Crataegus margaretiae var. margaretiae
uncommon
Rosaceae
Crataegus pruinosa var. parvula
rare
Rosaceae
Crataegus scabrida var. asperifolia
rare
Rosaceae
Crataegus teres
uncommon
Asteraceae
Crepis foetida
rarer than rare
Asteraceae
Crepis nicaeensis
rarer than rare
Asteraceae
Crepis zacintha
rarer than rare
Amaryllidaceae
Crinum americanum var. traubii
rare
Asteraceae
Croptilon rigidifolium
common
Fabaceae
Crotalaria alata
rarer than rare
Fabaceae
Crotalaria biflora
rarer than rare
Fabaceae
Crotalaria verrucosa
rarer than 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
rarer than rare
Cucurbitaceae
Cucumis melo var. cantalupo
rarer than rare
Cucurbitaceae
Cucurbita melopepo var. melopepo
rarer than rare
Zingiberaceae
Curcuma zedoaria
rarer than rare
Convolvulaceae
Cuscuta cassytoides
rarer than rare
Convolvulaceae
Cuscuta epilinum
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 drummondii
uncommon
Cyperaceae
Cyperus esculentus var. esculentus
rarer than rare
Cyperaceae
Cyperus esculentus var. heermannii
rarer than rare
Cyperaceae
Cyperus fraternus
rare
Cyperaceae
Cyperus giganteus
rare
Cyperaceae
Cyperus hemidrummondii
uncommon
Cyperaceae
Cyperus prolixus
rare
Cyperaceae
Cyperus pseudothyrsiflorus
rare
Cyperaceae
Cyperus retroflexus var. retroflexus
common
Cyperaceae
Cyperus species 1
uncommon
Cyperaceae
Cyperus species 2
rare
Cyperaceae
Cyperus squarrosus var. runyonii
rare
Cyperaceae
Cyperus unioloides
rarer than 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
Ranunculaceae
Delphinium pubescens
rarer than rare
Ranunculaceae
Delphinium species 1
rare
Ranunculaceae
Delphinium tenuissimum
rarer than rare
Brassicaceae
Descurainia pinnata var. halictorum
rare
Brassicaceae
Descurainia pinnata var. 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 psilophyllum
rare
Hydrangeaceae
Deutzia crenata var. crenata
rare
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
Hymenophyllaceae
Didymoglossum lineolatum
historical
Poaceae
Digitaria bakeri
rare
Poaceae
Digitaria floridana
rare
Poaceae
Digitaria simpsonii
rare
Poaceae
Dinebra decipiens var. peacockii
rarer than rare
Poaceae
Dinebra divaricatissima
rarer than rare
Poaceae
Dinebra scabra
uncommon
Lycopodiaceae
Diphasiastrum ×habereri
uncommon
Lycopodiaceae
Diphasiastrum ×verecundum
no
Lycopodiaceae
Diphasiastrum sabinifolium
historical
Poaceae
Diplachne acuminata
rare
Athyriaceae
Diplazium lonchophyllum
rare
Sapindaceae
Dodonaea elaeagnoides
rare
Plantaginaceae
Dopatrium junceum
rare
Moraceae
Dorstenia contrajerva
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 papillosus
rare
Cactaceae
Echinocereus reichenbachii var. fitchii
rare
Poaceae
Echinochloa cruspavonis var. cruspavonis
rarer than rare
Poaceae
Echinochloa cruspavonis var. macera
common
Poaceae
Echinochloa polystachya var. polystachya
uncommon
Cactaceae
Echinomastus gautii
rare
Boraginaceae
Echium pustulatum
rarer than rare
Poaceae
Ehrharta calycina
rarer than rare
Elatinaceae
Elatine heterandra
rare
Elatinaceae
Elatine rubella
no
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 species 1
rare
Poaceae
Eleusine africana
rarer than rare
Hydrocharitaceae
Elodea schweinitzii
extirpated
Poaceae
Elyhordeum macounii
questionable
Poaceae
Elymus canadensis var. brachystachys
common
Poaceae
Elymus canadensis var. robustus
uncommon
Poaceae
Elymus interruptus
rare
Poaceae
Elymus macgregorii var. hirsutispiculus
rare
Acanthaceae
Elytraria bromoides
uncommon
Acanthaceae
Elytraria caroliniensis var. vahliana
uncommon
Fabaceae
Enterolobium cyclocarpum
rarer than rare
Poaceae
Enteropogonopsis chloridea
uncommon
Orchidaceae
Epidendrum acunae
historical
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 ciliaris var. laxa
uncommon
Poaceae
Eragrostis lehmanniana
uncommon
Poaceae
Eragrostis lugens
common
Poaceae
Eragrostis mexicana ssp. mexicana
rarer than rare
Poaceae
Eragrostis mexicana ssp. virescens
rarer than rare
Poaceae
Eragrostis palmeri
rare
Poaceae
Eragrostis pectinacea var. miserrima
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 tracyi
rare
Poaceae
Eragrostis trichophora
rarer than rare
Asteraceae
Erigeron bellidiastrum var. robustus
rare
Asteraceae
Erigeron flagellaris
rare
Asteraceae
Erigeron floribundus
uncommon
Asteraceae
Erigeron tenellus
rare
Asteraceae
Erigeron tracyi
rare
Poaceae
Eriochloa fatmensis
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
Apiaceae
Eryngium diffusum
rare
Apiaceae
Eryngium species 1
rare
Brassicaceae
Erysimum cheiri
rarer than rare
Phrymaceae
Erythranthe floribunda
rare
Phrymaceae
Erythranthe inamoena
rare
Asteraceae
Eupatorium ×pinnatifidum
uncommon
Asteraceae
Eupatorium ×truncatum
rare
Asteraceae
Eupatorium species 1
rare
Euphorbiaceae
Euphorbia austrotexana var. carrii
rare
Euphorbiaceae
Euphorbia herniariifolia
rarer than rare
Euphorbiaceae
Euphorbia meganaesos
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
Heliotropiaceae
Euploca fruticosa
rare
Heliotropiaceae
Euploca species 1
rare
Heliotropiaceae
Euploca texana
common
Apiaceae
Eurytaenia texana
common
Asteraceae
Euthamia floribunda
uncommon
Asteraceae
Euthamia pulverulenta
uncommon
Asteraceae
Eutrochium purpureum var. holzingeri
uncommon
Convolvulaceae
Evolvulus macilentus
rare
Poaceae
Festuca octoflora var. hirtella
rare
Poaceae
Festuca sororia
historical
Cyperaceae
Fimbristylis interior
rare
Asteraceae
Flaveria brownii
uncommon
Asteraceae
Flaveria campestris
rare
Oleaceae
Fontanesia phyllyreoides ssp. fortunei
rarer than rare
Rosaceae
Fragaria ×ananassa var. ananassa
rarer than rare
Oleaceae
Fraxinus pauciflora
uncommon
Oleaceae
Fraxinus smallii
uncommon
Amaranthaceae
Froelichia floridana var. pallescens
common
Cyperaceae
Fuirena wallichiana
rarer than rare
Fumariaceae
Fumaria densiflora
rare
Asteraceae
Gaillardia ×grandiflora
rarer than rare
Asteraceae
Gaillardia aestivalis var. austrotexana
common
Asteraceae
Gaillardia aestivalis var. fastigiata
common
Asteraceae
Gaillardia pulchella var. australis
common
Fabaceae
Galactia canescens
common
Fabaceae
Galactia fasciculata
uncommon
Fabaceae
Galactia grisebachii
rare
Fabaceae
Galactia heterophylla
uncommon
Fabaceae
Galactia longifolia
rare
Fabaceae
Galactia marginalis
common
Fabaceae
Galactia texana
rare
Amaryllidaceae
Galanthus plicatus ssp. plicatus
no
Lamiaceae
Galeopsis ladanum var. ladanum
rarer than rare
Rubiaceae
Galium arkansanum var. pubiflorum
rare
Rubiaceae
Galium arvense
rarer than rare
Asteraceae
Gamochaeta argentina
rarer than rare
Polemoniaceae
Gilia tricolor ssp. tricolor
rarer than rare
Polemoniaceae
Giliastrum incisum
common
Polemoniaceae
Giliastrum ludens
rare
Iridaceae
Gladiolus ×gandavensis
uncommon
Verbenaceae
Glandularia ×hybrida
rarer than rare
Verbenaceae
Glandularia bipinnatifida var. ciliata
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
Molluginaceae
Glinus lotoides
rare
Molluginaceae
Glinus radiatus
uncommon
Zingiberaceae
Globba schomburgkii
rarer than rare
Poaceae
Glyceria striata var. stricta
rare
Lamiaceae
Gmelina arborea
rarer than rare
Amaranthaceae
Gomphrena nealleyi
common
Amaranthaceae
Gossypianthus lanuginosus var. lanuginosus
uncommon
Amaranthaceae
Gossypianthus lanuginosus var. tenuiflorus
uncommon
Orchidaceae
Govenia floridana
historical
Plantaginaceae
Gratiola species 1
rare
Plantaginaceae
Gratiola torreyi
uncommon
Asteraceae
Grindelia microcephala
rare
Asteraceae
Grindelia oolepis
rare
Asteraceae
Grindelia texana
common
Nyctaginaceae
Guapira obtusata ssp. obtusata
rare
Fabaceae
Guilandina nuga
rarer than rare
Asteraceae
Gutierrezia texana var. glutinosa
rare
Asteraceae
Gynura aurantiaca
rarer than rare
Styracaceae
Halesia diptera var. magniflora
rare
Hydrocharitaceae
Halophila baillonis
no
Lamiaceae
Hedeoma acinoides
common
Asteraceae
Helenium linifolium
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
Linderniaceae
Hemianthus micranthemoides
historical
Agavaceae
Hesperaloe engelmannii
rare
Asteraceae
Hieracium traillii
uncommon
Fabaceae
Hoffmannseggia drummondii
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
Acanthaceae
Hygrophila species 1
rare
Amaryllidaceae
Hymenocallis henryae var. glaucifolia
rare
Amaryllidaceae
Hymenocallis henryae var. henryae
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 species 1
rare
Ericaceae
Hypopitys species 2
rare
Poaceae
Imperata brevifolia
rarer than rare
Fabaceae
Indigofera colutea
rare
Asteraceae
Inula brittanica
rarer than rare
Convolvulaceae
Ipomoea batatilla
uncommon
Iridaceae
Iris albispiritus
rare
Iridaceae
Iris flexicaulis
uncommon
Iridaceae
Iris giganticaerulea
uncommon
Iridaceae
Iris kimballiae
rare
Iridaceae
Iris rivularis
rare
Iridaceae
Iris xiphium
rarer than rare
Asteraceae
Isocarpha oppositifolia var. achyranthes
rare
Asteraceae
Isocoma drummondii
common
Isoetaceae
Isoetes chapmanii
rare
Isoetaceae
Isoetes riparia var. reticulata
rare
Isoetaceae
Isoetes riparia var. riparia
rare
Isoetaceae
Isoetes saccharata
rare
Isoetaceae
Isoetes texana
rare
Asteraceae
Iva asperifolia
rarer than rare
Poaceae
Ixophorus unisetus
rarer than rare
Asteraceae
Jacobaea aquatica var. 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
Juncaceae
Juncus alpinoarticulatus ssp. fuscescens
questionable
Juncaceae
Juncus fascinatus
uncommon
Juncaceae
Juncus species 1
rare
Juncaceae
Juncus texanus
common
Zygophyllaceae
Kallstroemia californica
common
Zygophyllaceae
Kallstroemia hirsutissima
rare
Zygophyllaceae
Kallstroemia pubescens
rarer than rare
Malvaceae
Krapovickasia physaloides
rare
Asteraceae
Krigia gracilis
common
Verbenaceae
Lantana depressa var. sanibelensis
rare
Verbenaceae
Lantana velutina
rare
Poaceae
Lasiacis ruscifolia var. ruscifolia
rare
Fabaceae
Lathyrus decaphyllus var. incanus
rare
Malvaceae
Lavatera trimestris
rarer than 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
Leptoloma syrticola
uncommon
Fabaceae
Lespedeza formosa
rarer than rare
Asteraceae
Leucanthemum lacustre
rarer than rare
Oleaceae
Ligustrum obtusifolium var. suave
rarer than rare
Plantaginaceae
Limnophila aromatica
rarer than rare
Plantaginaceae
Limnophila indica
rarer than rare
Lauraceae
Lindera angustifolia
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
Fagaceae
Lithocarpus henryi
rarer than rare
Campanulaceae
Lobelia brachypoda
uncommon
Poaceae
Lolium persicum
rarer than rare
Apiaceae
Lomatium foeniculaceum var. daucifolium
common
Apiaceae
Lomatium foeniculaceum var. 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
rare
Lycopodiaceae
Lycopodiella ×gilmanii
rare
Lycopodiaceae
Lycopodiella ×robusta
rare
Lycopodiaceae
Lycopodiella margueriteae
rare
Selaginellaceae
Lycopodioides braunii
rarer than rare
Selaginellaceae
Lycopodioides uncinatum
rarer than rare
Lamiaceae
Lycopus ×sherardii
uncommon
Amaryllidaceae
Lycoris radiata var. pumila
rarer than rare
Primulaceae
Lysimachia ×producta
common
Lythraceae
Lythrum californicum
common
Orchidaceae
Macradenia lutescens
historical
Malpighiaceae
Malpighia emarginata
rarer than rare
Rosaceae
Malus ×platycarpa
rare
Malvaceae
Malvella lepidota
rare
Malvaceae
Malvella leprosa
rare
Malvaceae
Malvella sagittifolia
rare
Asteraceae
Marshallia species 1
rare
Marsileaceae
Marsilea ancyclopoda
rarer than rare
Marsileaceae
Marsilea hirsuta
rarer than rare
Marsileaceae
Marsilea oligospora
rarer than rare
Apocynaceae
Matelea radiata
rare
Fabaceae
Medicago heldreichii
rarer than rare
Asteraceae
Melampodium cinereum var. cinereum
uncommon
Asteraceae
Melampodium cinereum var. ramosissimum
rare
Poaceae
Melica altissima
rarer than rare
Poaceae
Melica aristata
rarer than rare
Malvaceae
Melochia nodiflora
rarer than rare
Lamiaceae
Mentha ×gracilis
uncommon
Lamiaceae
Mentha ×rotundifolia
rare
Lamiaceae
Mentha ×verticillata
rarer than rare
Lamiaceae
Mentha ×villosa
uncommon
Lamiaceae
Mentha aquatica var. citrata
rare
Lamiaceae
Mentha longifolia ssp. longifolia
uncommon
Saxifragaceae
Micranthes forbesii
uncommon
Asteraceae
Micropsis dasycarpa
rarer than rare
Fabaceae
Mimosa malacophylla
rare
Fabaceae
Mimosa monclovensis
rare
Nyctaginaceae
Mirabilis austrotexana
uncommon
Nyctaginaceae
Mirabilis latifolia
rare
Saxifragaceae
Mitella prostrata
historical
Phyllanthaceae
Moeroris abnormis var. 1
common
Phyllanthaceae
Moeroris abnormis var. 2
rare
Phyllanthaceae
Moeroris fraterna
rare
Molluginaceae
Mollugo nudicaulis
rarer than rare
Lamiaceae
Monarda citriodora var. parva
uncommon
Lamiaceae
Monarda pectinata
rare
Lamiaceae
Monarda punctata var. correllii
rare
Lamiaceae
Monarda punctata var. lasiodonta
common
Lamiaceae
Monarda species 4 [=villicaulis]
uncommon
Lamiaceae
Monarda species 5
rare
Lamiaceae
Monarda stanfieldii
rare
Poaceae
Moorochloa eruciformis
rarer than rare
Fabaceae
Mucuna macrocarpa
rarer than rare
Poaceae
Muhlenbergia arenicola
rare
Poaceae
Muhlenbergia phleoides
rare
Poaceae
Muhlenbergia porteri
rare
Poaceae
Muhlenbergia repens
rare
Poaceae
Muhlenbergia utilis
rare
Poaceae
Munroa squarrosa
rare
Pteridaceae
Myriopteris aemula
rare
Heliotropiaceae
Myriopus poliochros
rare
Orobanchaceae
Myzorrhiza multiflora
uncommon
Asteraceae
Nabalus cylindricus
rare
Hydrocharitaceae
Najas guadalupensis var. olivacea
rare
Namaceae
Nama berlandieri
rare
Namaceae
Nama parvifolia
rare
Namaceae
Nama stenocarpa
uncommon
Amaryllidaceae
Narcissus ×tenuior
rarer than rare
Amaryllidaceae
Narcissus telamonius
rarer than rare
Nartheciaceae
Narthecium montanum
extirpated
Fabaceae
Neltuma glandulosa var. prostrata
uncommon
Fabaceae
Neltuma laevigata
rare
Fabaceae
Neptunia microcarpa
rare
Fabaceae
Neptunia oleracea
rare
Fabaceae
Neptunia plena
rare
Oleaceae
Noronhia emarginata
rarer than rare
Onagraceae
Oenothera calcicola
rare
Onagraceae
Oenothera cinerea ssp. cinerea
common
Onagraceae
Oenothera cinerea ssp. parksii
rare
Onagraceae
Oenothera cordata
rare
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. maccartii
rare
Onagraceae
Oenothera hartwegii ssp. pubescens
common
Onagraceae
Oenothera kunthiana
uncommon
Onagraceae
Oenothera mckelveyae
common
Onagraceae
Oenothera mexicana
uncommon
Onagraceae
Oenothera pallida ssp. latifolia
rare
Onagraceae
Oenothera rosea
uncommon
Onagraceae
Oenothera sessilis
rare
Onagraceae
Oenothera species 1
common
Onagraceae
Oenothera species 2
rare
Onagraceae
Oenothera tetraptera
rare
Onagraceae
Oenothera triangulata
rare
Onagraceae
Oenothera tubicula ssp. tubicula
rare
Resedaceae
Oligomeris linifolia
rare
Fabaceae
Orbexilum macrophyllum
extirpated
Fabaceae
Orbexilum stipulatum
extirpated
Fabaceae
Ornithopus sativus ssp. sativus
rarer than rare
Poaceae
Oryza rufipogon
rare
Oleaceae
Osmanthus ×fortunei
rarer than rare
Oxalidaceae
Oxalis frutescens ssp. angustifolia
common
Oxalidaceae
Oxalis species 1
rare
Asteraceae
Packera ×memmingeri
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 hallii
common
Poaceae
Panicum hillmanii
rare
Poaceae
Panicum hirsutum
rare
Poaceae
Panicum hirticaule var. hirticaule
questionable
Poaceae
Panicum paludosum
rarer than rare
Poaceae
Panicum philadelphicum ssp. lithophilum
rare
Poaceae
Panicum psilopodium
rarer than rare
Poaceae
Panicum trichoides
rare
Asteraceae
Panphalea heterophylla
rarer than rare
Poaceae
Pappophorum bicolor
common
Poaceae
Pappophorum vaginatum
common
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
rarer than rare
Poaceae
Paspalum hartwegianum
uncommon
Poaceae
Paspalum modestum
uncommon
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 filipes
rare
Passifloraceae
Passiflora foetida var. isthmia
rarer than 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
Thelypteridaceae
Pelazoneuron abruptum var. grande
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
Piperaceae
Peperomia amplexicaulis
rarer than rare
Asteraceae
Peripleura arida
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 var. patuliflora
common
Hydrophyllaceae
Phacelia patuliflora var. teucriifolia
rare
Hydrophyllaceae
Phacelia robusta
rare
Hydrophyllaceae
Phacelia strictiflora var. connexa
uncommon
Hydrophyllaceae
Phacelia strictiflora var. lundelliana
uncommon
Hydrophyllaceae
Phacelia strictiflora var. strictiflora
uncommon
Poaceae
Phalaris brachystachys
rarer than rare
Fabaceae
Phaseolus lunatus
rarer than rare
Hydrangeaceae
Philadelphus texensis var. ernestii
rare
Polemoniaceae
Phlox drummondii var. drummondii
common
Polemoniaceae
Phlox drummondii var. mcallisteri
common
Polemoniaceae
Phlox drummondii var. tharpii
common
Polemoniaceae
Phlox oklahomensis
rare
Polemoniaceae
Phlox pilosa ssp. latisepala
uncommon
Polemoniaceae
Phlox pilosa ssp. riparia
common
Polemoniaceae
Phlox pulcherrima
common
Rosaceae
Photinia ×fraseri
rarer than rare
Phyllanthaceae
Phyllanthus angustifolius
rarer than rare
Phyllanthaceae
Phyllanthus fluitans
rare
Phyllanthaceae
Phyllanthus lathyroides
rare
Poaceae
Phyllostachys heterocycla
rarer than rare
Poaceae
Phyllostachys rubromarginata
rarer than rare
Poaceae
Phyllostachys sulphurea var. viridis
rarer than rare
Solanaceae
Physalis cinerascens var. variovestita
uncommon
Solanaceae
Physalis elliottii var. elliottii
uncommon
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
Urticaceae
Pilea involucrata
rarer than rare
Urticaceae
Pilea trianthemoides
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
rare
Poaceae
Pleuraphis mutica
rare
Asteraceae
Pluchea sagittalis
rarer than rare
Asteraceae
Pluchea yucatanensis
rare
Poaceae
Poa iconia var. iconia
rare
Poaceae
Poa secunda
rarer than rare
Cleomaceae
Polanisia erosa ssp. breviglandulosa
uncommon
Ruscaceae
Polygonatum biflorum var. hebetifolium
rare
Polygonaceae
Polygonum aviculare ssp. rurivagum
rarer than rare
Polygonaceae
Polygonum striatulum
rare
Asteraceae
Polymnia cossatotensis
rare
Poaceae
Polytrias indica
rarer than rare
Fabaceae
Pomaria austrotexana
rare
Salicaceae
Populus ×canadensis
rare
Salicaceae
Populus ×smithii
rare
Salicaceae
Populus tomentosa
rarer than rare
Portulacaceae
Portulaca nicaraguensis
common
Malvaceae
Pseudabutilon umbellatum
rare
Asteraceae
Pseudognaphalium austrotexanum
rare
Asteraceae
Pseudognaphalium canescens ssp. canescens
rare
Asteraceae
Pseudognaphalium domingense
rarer than rare
Lycopodiaceae
Pseudolycopodiella species 1
common
Rutaceae
Ptelea trifoliata var. 1 [=polyadenia]
rare
Rutaceae
Ptelea trifoliata var. persicifolia
uncommon
Pteridaceae
Pteris cretica var. albolineata
rare
Pteridaceae
Pteris ensiformis
questionable
Pteridaceae
Pteris quadriaurita
rare
Apiaceae
Ptilimnium texense
uncommon
Poaceae
Puccinellia rupestris
rarer than rare
Lamiaceae
Pycnanthemum monotrichum
rare
Lamiaceae
Pycnanthemum muticum var. 1
common
Rosaceae
Pyracantha atalantioides
rarer than rare
Rosaceae
Pyrus serrulata
rarer than 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
Polygalaceae
Rhinotropis nitida var. goliadensis
uncommon
Polygalaceae
Rhinotropis nitida var. tamaulipana
uncommon
Ericaceae
Rhododendron coryi
common
Ericaceae
Rhododendron viscosum var. montanum
uncommon
Fabaceae
Rhynchosia reticulata var. reticulata
rarer than rare
Fabaceae
Rhynchosia texana
common
Cyperaceae
Rhynchospora species 2
rare
Cyperaceae
Rhynchospora species 3
uncommon
Grossulariaceae
Ribes oxyacanthoides var. oxyacanthoides
rarer than rare
Rubiaceae
Richardia tricocca
common
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 dumetorum
rarer than 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 tinctoria
rarer than rare
Rosaceae
Rubus celer
rare
Rosaceae
Rubus invisus
uncommon
Rosaceae
Rubus orarius
uncommon
Rosaceae
Rubus satis
uncommon
Rosaceae
Rubus serratus
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 bucephalophorus
rarer than rare
Polygonaceae
Rumex cuneifolius
rarer than rare
Polygonaceae
Rumex hymenosepalus
rare
Polygonaceae
Rumex spiralis
uncommon
Polygonaceae
Rumex violascens
rare
Plantaginaceae
Russelia equisetiformis
rarer than rare
Gentianaceae
Sabatia formosa
rare
Orchidaceae
Sacoila squamulosa
rare
Alismataceae
Sagittaria ambigua
rare
Alismataceae
Sagittaria guayanensis ssp. guayanensis
rare
Salicaceae
Salix ×pendulina
uncommon
Salicaceae
Salix ×rubens
common
Salicaceae
Salix ×sepulcralis
rare
Salicaceae
Salix elaeagnos
rarer than rare
Salicaceae
Salix famelica
no
Salicaceae
Salix thurberi
rare
Lamiaceae
Salvia roemeriana
rare
Asteraceae
Sanvitalia ocymoides
rare
Cyperaceae
Schoenoplectiella purshiana var. williamsii
rare
Cyperaceae
Schoenoplectus pungens var. longispicatus
common
Hyacinthaceae
Scilla amoena
rarer than rare
Cyperaceae
Scleria eggersiana
rare
Asteraceae
Sclerocarpus uniserialis var. austrotexanus
uncommon
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
Lamiaceae
Scutellaria thieretii
rare
Crassulaceae
Sedum diffusum
rare
Asteraceae
Senecio brasiliensis var. tripartitus
rarer than rare
Asteraceae
Senecio quaylei
rare
Fabaceae
Senegalia pennata ssp. insuavis
rare
Fabaceae
Senna angustisiliqua
rarer than rare
Fabaceae
Senna atomaria
rarer than rare
Fabaceae
Senna bicapsularis
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 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 verticilliformis
rarer than rare
Poaceae
Setaria villosissima
rare
Orobanchaceae
Seymeria bipinnatisecta
rare
Malvaceae
Sida antillensis
rare
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
Sapotaceae
Sideroxylon lanuginosum ssp. albicans
common
Sapotaceae
Sideroxylon lanuginosum ssp. rigidum
rare
Fabaceae
Sigmoidotropis antillana
rare
Brassicaceae
Sisymbrium turczaninowii
rarer than rare
Iridaceae
Sisyrinchium arenicola
uncommon
Iridaceae
Sisyrinchium corymbosum
rare
Iridaceae
Sisyrinchium helleri
uncommon
Iridaceae
Sisyrinchium species 3
uncommon
Iridaceae
Sisyrinchium varians
rare
Smilacaceae
Smilax leptanthera
rare
Solanaceae
Solanum citrullifolium var. citrullifolium
rarer than rare
Solanaceae
Solanum perplexum
uncommon
Lamiaceae
Solenostemon scutellarioides
rarer than rare
Asteraceae
Solidago altiplanities
questionable
Asteraceae
Solidago dispersa
common
Asteraceae
Solidago pallescens
rare
Asteraceae
Solidago petiolaris var. wardii
uncommon
Caryophyllaceae
Spergularia media var. media
rarer than rare
Caryophyllaceae
Spergularia 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 ×bumalda
rarer than rare
Rosaceae
Spiraea ×vanhouttei
rare
Rosaceae
Spiraea nipponica
rarer than rare
Rosaceae
Spiraea trilobata var. trilobata
rarer than rare
Orchidaceae
Spiranthes ×kapnosperia
rare
Orchidaceae
Spiranthes niklasii
uncommon
Poaceae
Sporobolus buckleyi
uncommon
Poaceae
Sporobolus compositus var. macer
uncommon
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
Asteraceae
Symphyotrichum attenuatum
uncommon
Asteraceae
Symphyotrichum hesperium
questionable
Asteraceae
Symphyotrichum patens var. terranigrum
uncommon
Asteraceae
Symphyotrichum puniceum var. 1
rare
Asteraceae
Symphyotrichum racemosum var. subdumosum
uncommon
Asteraceae
Symphyotrichum schistosum
rare
Asteraceae
Symphyotrichum species 1
rare
Poaceae
Taeniatherum caput-medusae ssp. caput-medusae
rarer than rare
Asteraceae
Tagetes pusilla
rarer than rare
Talinaceae
Talinum polygaloides
common
Tamaricaceae
Tamarix africana
uncommon
Tamaricaceae
Tamarix aphylla
uncommon
Cleomaceae
Tarenaya diffusa
rarer than rare
Tectariaceae
Tectaria coriandrifolia
historical
Fabaceae
Tephrosia angustissima
extirpated
Fabaceae
Tephrosia cinerea
rarer than rare
Fabaceae
Tephrosia mohrii
uncommon
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
Apiaceae
Thaspium species 1
rare
Asteraceae
Thelesperma nuecense
common
Poaceae
Themeda quadrivalvis var. quadrivalvis
rarer than rare
Poaceae
Thinopyrum ponticum
rarer than rare
Asteraceae
Thymophylla tenuiloba var. tenuiloba
common
Asteraceae
Thymophylla tenuiloba var. treculii
uncommon
Fabaceae
Ticanto crista
no
Apiaceae
Tiedemannia filiformis ssp. greenmanii
rare
Malvaceae
Tilia ×europaea
rarer than rare
Malvaceae
Tilia petiolaris
rarer than rare
Bromeliaceae
Tillandsia fasciculata var. clavispica
rare
Apiaceae
Torilis purpurea
rarer than rare
Poaceae
Trachypogon secundus
common
Commelinaceae
Tradescantia buckleyi
rare
Commelinaceae
Tradescantia crassula
rarer than rare
Poaceae
Tragus heptaneuron
rarer than rare
Poaceae
Trichoneura elegans
uncommon
Poaceae
Tridens buckleyanus
rare
Poaceae
Tridentopsis elongata
rare
Fabaceae
Trifolium amphianthum
uncommon
Fabaceae
Trifolium bejariense
common
Fabaceae
Trifolium spumosum
rarer than rare
Trilliaceae
Trillium pusillum var. 3
rare
Trilliaceae
Trillium pusillum var. 4
rare
Trilliaceae
Trillium pusillum var. 5
rare
Caprifoliaceae
Triosteum angustifolium var. eamesii
rare
Asteraceae
Tripleurospermum maritimum ssp. maritimum
rarer than rare
Poaceae
Triraphis mollis
rarer than rare
Poaceae
Trisetum aureum
rarer than rare
Ulmaceae
Ulmus ×intermedia
rarer than rare
Poaceae
Urochloa brizantha
rarer than rare
Poaceae
Urochloa ciliatissima
common
Poaceae
Urochloa deflexa
rarer than rare
Poaceae
Urochloa humidicola
rarer than rare
Poaceae
Urochloa mosambicensis
rare
Poaceae
Urochloa oligobrachiata
rare
Urticaceae
Urtica ballotifolia
rarer than rare
Valerianaceae
Valerianella florifera
uncommon
Valerianaceae
Valerianella ozarkana
uncommon
Valerianaceae
Valerianella palmeri
rare
Valerianaceae
Valerianella stenocarpa
uncommon
Verbenaceae
Verbena cloverae
common
Verbenaceae
Verbena runyonii
rare
Asteraceae
Vernonia angustifolia var. scaberrima
uncommon
Viburnaceae
Viburnum ×rhytidophylloides
rarer than rare
Viburnaceae
Viburnum buddleifolium
rarer than rare
Fabaceae
Vicia articulata
rarer than rare
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 ×wittrockiana
rarer than rare
Violaceae
Viola chalcosperma
rare
Violaceae
Viola emarginata var. 1 ["entomophylla" variant]
uncommon
Violaceae
Viola emarginata var. 2 ["deltate" variant]
uncommon
Violaceae
Viola emarginata var. 3 ["Lower Midwest" variant]
common
Violaceae
Viola floridana var. 1 ["peninsular Florida" variant]
uncommon
Violaceae
Viola floridana var. 2 ["rosacea" variant]
rare
Violaceae
Viola latiuscula
rare
Violaceae
Viola palmata var. 1 ["pseudo-stoneana" 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 retusa
rare
Violaceae
Viola sororia var. 1 ["glabrous" variant]
common
Violaceae
Viola sororia var. 2 ["hirsutula-like" variant]
rare
Violaceae
Viola sororia var. 3 ["pratincola"]
uncommon
Violaceae
Viola species 2 ["pedatiloba"]
rare
Violaceae
Viola species 3 ["impostor"]
uncommon
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 acerifolia
uncommon
Vitaceae
Vitis monticola
rare
Lamiaceae
Volkameria glabra
rarer than rare
Poaceae
Willkommia texana var. texana
uncommon
Malvaceae
Wissadula hernandioides
rare
Malvaceae
Wissadula parvifolia
rare
Malvaceae
Wissadula periplocifolia
rare
Araceae
Wolffiella oblonga
uncommon
Asteraceae
Xanthisma glaberrimum
uncommon
Asteraceae
Xanthisma spinulosum var. austrotexanum
rare
Asteraceae
Xanthisma texanum var. orientale
common
Asteraceae
Xanthium ambrosioides
rarer than rare
Asteraceae
Xanthium speciosum
uncommon
Xyridaceae
Xyris spathifolia
rare
Agavaceae
Yucca tenuistyla
uncommon
Zamiaceae
Zamia integrifolia var. broomei
rare
Zamiaceae
Zamia integrifolia var. floridana
rare
Zamiaceae
Zamia integrifolia var. integrifolia
uncommon
Zamiaceae
Zamia integrifolia var. silvicola
rare
Poaceae
Zea mays ssp. mexicana
rarer than rare
Poaceae
Zea mays ssp. parviglumis
rarer than rare
Gentianaceae
Zeltnera breviflora
uncommon
Amaryllidaceae
Zephyranthes bifida
rarer than rare
Amaryllidaceae
Zephyranthes jonesii
rare
Amaryllidaceae
Zephyranthes refugiensis
rare
Amaryllidaceae
Zephyranthes smallii
rare
Amaryllidaceae
Zephyranthes traubii
rare