Paspalum urvillei |
Paspalum minus |
|
---|---|---|
Vasey grass, Vasey's grass |
Matted paspalum |
|
Habit | Plants perennial; cespitose, with a knotty base composed of very short (less than 1 cm) rhizomes. | Plants perennial; shortly rhizomatous. |
Culms | 50-220 cm, erect; nodes glabrous or pubescent. |
3-60 cm, erect; nodes glabrous. |
Sheaths | glabrous or pubescent; ligules 1-4(7.7) mm; blades 12-60 cm long, 2-12 mm wide, flat, mostly glabrous, a few long hairs near the base of the adaxial surface. |
glabrous or pubescent; ligules 0.2-0.7 mm; blades 8-18 cm long, 2-7.1 mm wide, flat, glabrous or pubescent. |
Panicles | terminal, with (4)10-30 racemosely arranged branches; branches 1.2-11.5 cm, divergent; branch axes 0.5-1.1 mm wide, winged, glabrous, margins scabrous, terminating in a spikelet. |
terminal, usually composed of a digitate pair of branches, a third branch sometimes present below the terminal pair; branches 1.8-6.4 cm, diverging to erect; branch axes 0.5-1.3 mm wide, narrowly winged, glabrous, margins scabrous, terminating in a spikelet. |
Spikelets | 1.8-2.8 mm long, 1.1-1.5 mm wide, paired, appressed to the branch axes, elliptic to slightly obovate, stramineous (rarely purple). |
1.9-2.3 mm long, 1.2-2 mm wide, solitary, appressed to the branch axes, broadly elliptic to ovate to obovate, glabrous, stramineous, apices obtuse. |
Caryopses | 1.2-1.7 mm, white. |
1.8-2.2 mm, white. |
Lower | glumes absent; upper glumes and lower lemmas 3-veined, margins pilose; upper florets stramineous. |
glumes absent; upper glumes 3-veined, lower lemmas faintly 3-veined; upper florets stramineous. |
2n | = 40. |
= 20, 40, 50. |
Paspalum urvillei |
Paspalum minus |
|
Distribution |
AL; AR; CA; FL; GA; KS; KY; LA; MO; MS; NC; OK; SC; TN; TX; VA; HI; PR
|
AL; FL; LA; MS; TX; PR |
Discussion | Paspalum urvillei has been introduced to the United States from South America. In the Flora region it grows in disturbed, moist to wet areas, primarily in the southeastern United States. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Paspalum minus grows in disturbed areas and on the edges of forests. It grows from southern Texas to Florida in the Flora region; outside the region, it extends through Mexico and the West Indies to Peru, Bolivia, Brazil, and Paraguay. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25. | FNA vol. 25, p. 577. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Name authority | Steud. | E. Fourn. |
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