Paspalum dilatatum |
Paspalum scrobiculatum |
|
---|---|---|
Dallis grass, sticky heads |
Indian paspalum, kodo-millet, ricegrass, ricegrass paspalum |
|
Habit | Plants perennial; cespitose, rhizomatous, rhizomes short (less than 1 cm), forming a knotty base. | Plants annual. |
Culms | 50-175 cm, erect; nodes glabrous. |
10-150 cm, erect or decumbent; nodes glabrous. |
Sheaths | glabrous or pubescent, lower sheaths more frequently pubescent than the upper sheaths; ligules 1.5-3.8 mm; blades to 35 cm long, 2-16.5 mm wide, flat, mostly glabrous, adaxial surfaces with a few long hairs near the base. |
glabrous; ligules 0.3-1.2 mm, often with a row of hairs behind them; blades 5-30 cm long, 2-8(12) mm wide, flat, usually glabrous. |
Panicles | terminal, with 2-7 racemosely arranged branches; branches 1.5-12 cm, racemose, divergent; branch axes 0.7-1.4 mm wide, winged, glabrous, margins scabrous, terminating in a spikelet. |
terminal, with 1-5 digitately or racemosely arranged branches; branches 3-10 cm, diverging to spreading, persistent; branch axes 1.5-3 mm wide, broadly winged, glabrous, margins scabrous, terminating in a spikelet. |
Spikelets | 2.3-4 mm long, 1.7-2.5 mm wide, paired, appressed to the branch axes, ovate, tapering to an acute apex, stramineous (rarely purple). |
1.8-3.2 mm long, 2-2.3 mm wide, solitary, diverging from the branch axes, ovate, glabrous, olive green to dark, glossy brown. |
Lower glumes | absent; upper glumes and lower lemmas 5-7-veined, margins pilose; upper florets stramineous. |
absent; upper glumes as long as the lower lemmas, 5-7-veined; lower lemmas 3-5-veined; upper florets 2.5-3 mm long, 1.4-1.8 mm wide, dark glossy brown. |
Caryopses | 2-2.3 mm, white to brown. |
1.1-1.5 mm, nearly orbicular. |
2n | = 20, 40, 50-63. |
= 20, 40, 60, 120. |
Paspalum dilatatum |
Paspalum scrobiculatum |
|
Distribution |
AL; AR; AZ; CA; CO; DC; FL; GA; IL; KY; LA; MD; MO; MS; NC; NJ; NM; OK; OR; SC; TN; TX; VA; WV; HI; PR
|
AL; GA; MD; NJ; TX; HI
|
Discussion | Paspalum dilatatum is native to Brazil and Argentina. It is now well established in the Flora region, generally as a weed in waste places. It is also used as a turf grass. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Paspalum scrobiculatium is native to India. It has been found growing in widely scattered disturbed areas of the southeastern United States, possibly as an escape from cultivation. It is grown as a cereal (Kodo) in India. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 579. | FNA vol. 25. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Synonyms | P. orbiculare | |
Name authority | Poir. | L. |
Web links |
|