Paspalum praecox |
Paspalum laeve |
|
---|---|---|
early paspalum |
field beadgrass, field paspalum |
|
Habit | Plants perennial; shortly rhizomatous. | Plants perennial; shortly rhizomatous. |
Culms | 5-160 cm, erect, not rooting at the lower nodes; nodes glabrous. |
40-120 cm, erect; nodes glabrous or pubescent. |
Sheaths | densely pubescent, occasionally glabrous; ligules 1-2.2 mm; blades to 55 cm long, 2.2-8.3 mm wide, conduplicate (occasionally flat), glabrous below, pubescent above. |
glabrous or pubescent; ligules 1.5-3.8 mm; blades to 37 cm long, 2-9.3 mm wide, flat, glabrous or pubescent. |
Panicles | terminal, with 2-10 racemosely arranged branches; branches 0.8-10.3 cm, divergent to spreading, often arcuate, terminating in a spikelet; branch axes 0.8-2 mm wide, narrowly winged, glabrous, margins scabrous. |
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. |
Spikelets | 2.1-3.1 mm long, 2-2.8 mm wide, paired, imbricate, appressed to divergent from the branch axes, orbicular to suborbicular, stramineous. |
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. |
Caryopses | 1.9-2.1 mm, brown. |
about 2 mm, white to yellow-brown. |
Lower | glumes absent; upper glumes and lower lemmas glabrous, 3-veined, margins entire; upper florets white to light yellow. |
glumes absent; upper glumes 3-veined, lower lemmas 5-veined; upper florets pale to stramineous. |
2n | = 20, 40. |
= 20, 58, 70, 80. |
Paspalum praecox |
Paspalum laeve |
|
Distribution |
AL; AR; FL; GA; IL; LA; MS; NC; SC; TX; VA
|
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
|
Discussion | Paspalum praecox grows in pitcher plant bogs, wet pine flatwoods, wet savannahs, prairies, and wet streamhead ecotones. It is restricted to the United States, growing predominantly on the southeastern coastal plain. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 25, p. 597. | FNA vol. 25, p. 572. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Synonyms | P. praecox var. curtisianum, P. lentiferum | P. longipilum, P. laeve var. pilosum, P. laeve var. circulare, P. laeve var. australe, P. circulare |
Name authority | Walter | Michx. |
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