Paspalum urvillei |
Paspalum convexum |
|
---|---|---|
Vasey grass, Vasey's grass |
Latin American crowngrass, Mexican paspalum |
|
Habit | Plants perennial; cespitose, with a knotty base composed of very short (less than 1 cm) rhizomes. | Plants annual. |
Culms | 50-220 cm, erect; nodes glabrous or pubescent. |
10-53 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. |
pubescent or glabrous; ligules 2-4.1 mm; blades 5-25(80) cm long, 2.9-10.2(12) mm wide, flat. |
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, with 1-5 racemosely arranged branches; branches 1.1-5.4(7) cm, divergent; branch axes 0.8-1.3 mm wide, not or narrowly winged, glabrous, 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). |
2.1-2.6 mm long, 1.7-2.4 mm wide, paired, appressed to the branch axes, broadly obovate to suborbicular, shortly pubescent, light to dark brown. |
Caryopses | 1.2-1.7 mm, white. |
1.3-1.5 mm, white. |
Lower | glumes absent; upper glumes and lower lemmas 3-veined, margins pilose; upper florets stramineous. |
glumes absent; upper glumes and lower lemmas shortly pubescent, 5-7-veined, margins entire; lower paleas rarely present; upper florets dark glossy brown. |
2n | = 40. |
= 30,32,40,60. |
Paspalum urvillei |
Paspalum convexum |
|
Distribution |
AL; AR; CA; FL; GA; KS; KY; LA; MO; MS; NC; OK; SC; TN; TX; VA; HI; PR
|
LA; MD; 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 convexum grows in disturbed areas in the southern United States. It is native from Mexico and the Caribbean Islands to Brazil. It is not considered to have particularly high forage value. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25. | FNA vol. 25, p. 581. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Name authority | Steud. | Humb. & Bonpl. ex Flüggé |
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