Paspalum conjugatum |
Paspalum almum |
|
---|---|---|
herbe creole, Hilo grass, muhsrasre, rehn wei, sour grass, sour paspalum, ti grass |
comb's crowngrass, comb's paspalum |
|
Habit | Plants perennial; stoloniferous. | Plants perennial; cespitose, shortly rhizomatous. |
Culms | 15-80 cm, erect; nodes glabrous. |
10-50 cm, erect. |
Sheaths | glabrous, pubescent distally; ligules 0.5-0.8 mm; blades 7-23 cm long, 1.5-8 mm wide, flat. |
glabrous or sparsely pubescent; ligules 0.5-2 mm; blades to 20 cm long, 1.5-3.8 mm wide, flat, pubescent. |
Panicles | terminal, usually composed of a pair of branches, a third branch sometimes present below the terminal pair; branches 2.5-12.7 cm, diverging to spreading, often arcuate, persistent; branch axes 0.2-0.8 mm wide, glabrous, margins scabrous, terminating in a reduced spikelet. |
terminal, usually composed of a digitate pair of branches, 1-5 additional branches sometimes present below; branches 1.8-7.1 cm, diverging to erect; branch axes 0.8-1.3 mm wide, winged, terminating in a spikelet. |
Spikelets | 1.3-1.9 mm long, 0.8-1.1 mm wide, solitary, appressed to the branch axes, ovate, stramineous. |
3-3.6 mm long, 1.3-1.8 mm wide, solitary (rarely paired), appressed to the branch axes, elliptic, glabrous, apices acute to acuminate. |
Lower glumes | absent; upper glumes pilose on the margins, veinless or 2-3-veined; lower lemmas glabrous, veinless or 2-3-veined; upper florets whitish to golden yellow. |
absent; upper glumes and lower lemmas glabrous, 5-veined, margins flat; upper florets stramineous to golden brown. |
Caryopses | 0.9-1.1 mm, white to yellow. |
|
2n | = 18, 20, 40, 80. |
= 12, 24, 36. |
Paspalum conjugatum |
Paspalum almum |
|
Distribution |
AL; FL; LA; MS; TX; UT; HI; PR; Virgin Islands
|
LA; TX |
Discussion | Paspalum conjugatum is native to tropical and subtropical regions of both the Western and Eastern hemispheres, including the Flora region. It grows in disturbed areas and at the edges of forests, and is sometimes used as a lawn grass. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Paspalum almum was probably introduced to North America as a forage species. Its native range is Brazil, Paraguay, Uruguay, and eastern Argentina. It has not been reported from Mexico or Central America. In the Flora region, it is found along roadsides and in pastures of southeastern Texas and southern Louisiana. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 572. | FNA vol. 25, p. 575. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Name authority | P.J. Bergius | Chase |
Web links |