Flora of the Southeastern United States

Rhynchospora

Bristles present, retrorsely barbed (at least towards their tips), or antrorsely barbed and straplike (flattened); [subgenus Diplostylae; section Albae]

Bristles present, retrorsely barbed (at least towards their tips), or antrorsely barbed and straplike (flattened); [subgenus Diplostylae; section Albae]

Rhynchospora

Bristles present, retrorsely barbed (at least towards their tips), or antrorsely barbed and straplike (flattened); [subgenus Diplostylae; section Albae]

Bristles present, retrorsely barbed (at least towards their tips), or antrorsely barbed and straplike (flattened); [subgenus Diplostylae; section Albae]

Rhynchospora

Bristles absent, or present and smooth, or antrorsely barbed and filiform.

Bristles absent, or present and smooth, or antrorsely barbed and filiform.

Rhynchospora

Bristles 8-25, retrorsely barbed distally, antrorsely barbed proximally; spikelets white, turning tan with age.

Bristles 8-25, retrorsely barbed distally, antrorsely barbed proximally; spikelets white, turning tan with age.

Rhynchospora

Bristles 6 or fewer, either retrorsely or (rarely) antrorsely barbed their entire length; spikelets variously brown, rufous, or tan (or very rarely white).

Bristles 6 or fewer, either retrorsely or (rarely) antrorsely barbed their entire length; spikelets variously brown, rufous, or tan (or very rarely white).

Andropogon

Culm sheaths antrorsely scabrous (often hirsute as well).

Culm sheaths antrorsely scabrous (often hirsute as well).

Andropogon

Culm sheaths antrorsely scabrous (often hirsute as well); leaf blades usually > 35 cm long.

Culm sheaths antrorsely scabrous (often hirsute as well); leaf blades usually > 35 cm long.

Cenchrus

Bristles plumose or antrorsely scabrous, free or fused < ½ their lengths; [formerly Pennisetum].

Bristles plumose or antrorsely scabrous, free or fused < ½ their lengths; [formerly Pennisetum].

Dichanthelium

Ligule a stramineous to light brown membrane, with or without terminal cilia; peduncle antrorsely scabrous but not hairy.

Ligule a stramineous to light brown membrane, with or without terminal cilia; peduncle antrorsely scabrous but not hairy.

Dichanthelium

Ligule entirely of white hairs; peduncle variously hairy or glabrous, but not antrorsely scabrous.

Ligule entirely of white hairs; peduncle variously hairy or glabrous, but not antrorsely scabrous.

Dichanthelium

Culms without a viscid band below the retrorsely, spreading, or antrorsely bearded nodes; internodes and sheaths not velvety-pubescent, blades velvety-pubescent in some.

Culms without a viscid band below the retrorsely, spreading, or antrorsely bearded nodes; internodes and sheaths not velvety-pubescent, blades velvety-pubescent in some.

Dichanthelium

Nodes spreading to antrorsely bearded; larger vernal leaves 3-10 mm wide.

Nodes spreading to antrorsely bearded; larger vernal leaves 3-10 mm wide.

Lolium

Auricles ciliate (sometimes only very sparsely so – check several at 10-20× magnification); spikelets with 3-6 (-9) florets; old sheaths pale straw-colored, often remaining intact; internodes of the rachilla antrorsely scabrous

Auricles ciliate (sometimes only very sparsely so – check several at 10-20× magnification); spikelets with 3-6 (-9) florets; old sheaths pale straw-colored, often remaining intact; internodes of the rachilla antrorsely scabrous

Oplismenus

Awns antrorsely scabrous

Awns antrorsely scabrous

Setaria

Bristles antrorsely scabrous

Bristles antrorsely scabrous

Kummerowia

Stems antrorsely appressed-strigose; mid-stem leaves with petioles 4-10 mm long; leaflets retuse or emarginate at the apex; leaflets conspicuously spreading-ciliate; calyx covering 1/3-1/2 of the legume

Stems antrorsely appressed-strigose; mid-stem leaves with petioles 4-10 mm long; leaflets retuse or emarginate at the apex; leaflets conspicuously spreading-ciliate; calyx covering 1/3-1/2 of the legume

Galium

Leaf margins antrorsely ciliate-scabrid; leaves 4-8× as long as wide; [plants of dry forests and woodlands].

Leaf margins antrorsely ciliate-scabrid; leaves 4-8× as long as wide; [plants of dry forests and woodlands].

Lobelia

Lower lip of corolla pubescent inside at the base near throat; pedicels and calyx often strongly antrorsely scabrid (with sharp upward-pointing hairs), rarely almost glabrous (but usually have a few antrorse hairs, especially on the pedicels); hypanthium oval to oblong in fruit; basal leaves linear

Lower lip of corolla pubescent inside at the base near throat; pedicels and calyx often strongly antrorsely scabrid (with sharp upward-pointing hairs), rarely almost glabrous (but usually have a few antrorse hairs, especially on the pedicels); hypanthium oval to oblong in fruit; basal leaves linear

Asteraceae

Pappus not only coroniform, either absent or variously composed of scales, awns, or plumose bristles (Galinsogeopsis has 2 antrorsely barbed bristles plus a crowns of laciniate scales); disk florets yellow, red-brown, or pinkish.

Pappus not only coroniform, either absent or variously composed of scales, awns, or plumose bristles (Galinsogeopsis has 2 antrorsely barbed bristles plus a crowns of laciniate scales); disk florets yellow, red-brown, or pinkish.

Diervilla

Inflorescences lax, few-flowered (axillary: 1-3 flowers; terminal: 2-13 flowers); leaf blades broadly ovate with short-lanceolate apices; petioles 5-10 mm long (median = 6 mm); twigs below peduncles puberulent with very short, soft hairs that are curled antrorsely (upward) toward the stem; persistent sepal lobes 3-5 mm long (median = 3.5 mm); [northern parts of our region south to south to Buncombe and McDowell counties, NC]

Inflorescences lax, few-flowered (axillary: 1-3 flowers; terminal: 2-13 flowers); leaf blades broadly ovate with short-lanceolate apices; petioles 5-10 mm long (median = 6 mm); twigs below peduncles puberulent with very short, soft hairs that are curled antrorsely (upward) toward the stem; persistent sepal lobes 3-5 mm long (median = 3.5 mm); [northern parts of our region south to south to Buncombe and McDowell counties, NC]

Festuca

Auricles ciliate (sometimes only very sparsely so – check several at 10-20× magnification); spikelets with 3-6 (-9) florets; old sheaths pale straw-colored, often remaining intact; internodes of the rachilla antrorsely scabrous

Auricles ciliate (sometimes only very sparsely so – check several at 10-20× magnification); spikelets with 3-6 (-9) florets; old sheaths pale straw-colored, often remaining intact; internodes of the rachilla antrorsely scabrous

Clinopodium

Lower calyx lobes with short antrorsely appressed pubescence (to 0.2 mm long) along margin and on the outer surface

Lower calyx lobes with short antrorsely appressed pubescence (to 0.2 mm long) along margin and on the outer surface

Torilis

Rays (2-) 4-12; schizocarps with longest spines slightly antrorsely curved, 0.5-1.0 mm long

Rays (2-) 4-12; schizocarps with longest spines slightly antrorsely curved, 0.5-1.0 mm long

Bidens

Cypselas usually antrorsely strigillose throughout; cypsela angles weak or absent

Cypselas usually antrorsely strigillose throughout; cypsela angles weak or absent

Asteraceae

Pappus absent or of 1-2 antrorsely-barbed or subplumose bristles; leaf blades usually lobed; [c. and TX westward; formerly Perityle]

Pappus absent or of 1-2 antrorsely-barbed or subplumose bristles; leaf blades usually lobed; [c. and TX westward; formerly Perityle]

Anatherum

Culm sheaths antrorsely scabrous (often hirsute as well); leaf blades usually > 35 cm long.

Culm sheaths antrorsely scabrous (often hirsute as well); leaf blades usually > 35 cm long.

Anatherum

Culm sheaths antrorsely scabrous (often hirsute as well).

Culm sheaths antrorsely scabrous (often hirsute as well).