Paspalum laeve |
Paspalum repens |
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field beadgrass, field paspalum |
water paspalum |
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Habit | Plants perennial; shortly rhizomatous. | Plants annual; aquatic, floating or rhizomatous. |
Culms | 40-120 cm, erect; nodes glabrous or pubescent. |
4-55 cm, erect; nodes pubescent. |
Sheaths | glabrous or pubescent; ligules 1.5-3.8 mm; blades to 37 cm long, 2-9.3 mm wide, flat, glabrous or pubescent. |
glabrous or pubescent; ligules 1-4 mm; blades 10-40 cm long, 8-22 mm wide, flat, glabrous or sparsely pubescent. |
Panicles | terminal, with 1-6 racemosely arranged branches; branches 2-10.9 cm, diverging to spreading (rarely erect), persistent; branch axes 0.6-1.3 mm wide, glabrous, margins scabrous, terminating in a spikelet. |
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. |
Spikelets | 2.3-3.3 mm long, 2-2.7 mm wide, solitary, appressed to the branch axes, elliptic to obovate or nearly orbicular, glabrous, stramineous. |
1.1-1.9 mm long, 0.5-0.8 mm wide, solitary, appressed to the branch axes, elliptic, pubescent, white. |
Lower glumes | absent; upper glumes 3-veined, lower lemmas 5-veined; upper florets pale to stramineous. |
absent; upper glumes and lower lemmas veinless; upper florets white. |
Caryopses | about 2 mm, white to yellow-brown. |
0.8-0.9 mm, translucent, white. |
2n | = 20, 58, 70, 80. |
= 20. |
Paspalum laeve |
Paspalum repens |
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Distribution |
AL; AR; CT; DC; DE; FL; GA; IL; IN; KS; KY; LA; MA; MD; MI; MO; MS; NC; NJ; NY; OH; OK; PA; SC; TN; TX; VA; WV
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Discussion | Paspalum laeve is restricted to the eastern United States. It grows at the edges of forests and in disturbed areas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 25, p. 572. | FNA vol. 25, p. 571. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Synonyms | P. longipilum, P. laeve var. pilosum, P. laeve var. circulare, P. laeve var. australe, P. circulare | P. repens var. fluitans, P. fluitans |
Name authority | Michx. | P.J. Bergius |
Web links |