Paspalum repens |
Paspalum minus |
|
---|---|---|
water paspalum |
Matted paspalum |
|
Habit | Plants annual; aquatic, floating or rhizomatous. | Plants perennial; shortly rhizomatous. |
Culms | 4-55 cm, erect; nodes pubescent. |
3-60 cm, erect; nodes glabrous. |
Sheaths | glabrous or pubescent; ligules 1-4 mm; blades 10-40 cm long, 8-22 mm wide, flat, glabrous or sparsely pubescent. |
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 (7)20-70 racemosely arranged branches; branches 1.2-9.5 cm, diverging to spreading, occasionally arcuate, disarticulating at maturity; branch axes 0.7-1.5 mm wide, broadly winged, glabrous, margins scabrous, extending beyond the distal 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 | 1.1-1.9 mm long, 0.5-0.8 mm wide, solitary, appressed to the branch axes, elliptic, pubescent, white. |
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. |
Lower glumes | absent; upper glumes and lower lemmas veinless; upper florets white. |
absent; upper glumes 3-veined, lower lemmas faintly 3-veined; upper florets stramineous. |
Caryopses | 0.8-0.9 mm, translucent, white. |
1.8-2.2 mm, white. |
2n | = 20. |
= 20, 40, 50. |
Paspalum repens |
Paspalum minus |
|
Distribution |
AL; FL; LA; MS; TX; PR |
|
Discussion | Paspalum repens is a native species that grows along the edges of lakes, streams, and roadside ditches in the southeastern United States. Its range extends through tropical America to Peru, Bolivia, and Argentina. (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, p. 571. | FNA vol. 25, p. 577. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Synonyms | P. repens var. fluitans, P. fluitans | |
Name authority | P.J. Bergius | E. Fourn. |
Web links |