Paspalum urvillei |
Paspalum nicorae |
|
---|---|---|
Vasey grass, Vasey's grass |
brunswickgrass |
|
Habit | Plants perennial; cespitose, with a knotty base composed of very short (less than 1 cm) rhizomes. | Plants perennial; rhizomatous, rhizomes 5-25 cm, conspicuous. |
Culms | 50-220 cm, erect; nodes glabrous or pubescent. |
10-70 cm, erect to ascending; 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, pubescent apically; ligules 1.2-1.5 mm; blades 6-20 cm long, 4-5 mm wide, flat to conduplicate, 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, with 2-5 racemosely arranged branches; branches 1.4-5.2 cm, divergent; branch axes about 0.8 mm wide, 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). |
2.3-2.7 mm long, 1.4-1.8 mm wide, paired, appressed to or divergent from the branch axes, elliptic, dark brown. |
Caryopses | 1.2-1.7 mm, white. |
about 1.8 mm long, 1.4 mm wide, ellipsoidal. |
Lower | glumes absent; upper glumes and lower lemmas 3-veined, margins pilose; upper florets stramineous. |
glumes absent; upper glumes shortly pubescent, 5-veined, margins entire; lower lemmas transversely rugose at maturity, glabrous, 5-veined, margins entire; upper florets dark glossy brown. |
2n | = 40. |
= 40. |
Paspalum urvillei |
Paspalum nicorae |
|
Distribution |
AL; AR; CA; FL; GA; KS; KY; LA; MO; MS; NC; OK; SC; TN; TX; VA; HI; PR
|
AL; FL; GA |
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 nicorae is native to Brazil, Uruguay, and Argentina. It was introduced to the United States for use in pastures and as a cover crop in waterways. It is now established in the southeastern United States, growing as a weed in pastures, turf, and other disturbed areas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25. | FNA vol. 25, p. 584. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Name authority | Steud. | Parodi |
Web links |