Setaria parviflora |
Setaria palmifolia |
|
---|---|---|
knot-root bristlegrass, knotroot foxtail, marsh bristle grass, yellow bristlegrass |
palmgrass |
|
Habit | Plants perennial; rhizomatous, rhizomes short, knotty. | Plants perennial. |
Culms | 30-120 cm; nodes glabrous. |
1-2 m. |
Sheaths | glabrous; ligules shorter than 1 mm, of hairs; blades to 25 cm long, 2-8 mm wide, flat, scabrous above. |
strigose, margins with stiff hairs; collars hispid; ligules about 2 mm, of hairs; blades to 50 cm long, 20-80 mm wide, plicate, tapering at both ends, abaxial surfaces sparsely strigose, adaxial surfaces short pubescent near the base. |
Panicles | 3-8 (10) cm, of uniform width throughout their length, densely spikelike; rachises scabro-hispid; bristles 4-12, 2-12 mm, antrorsely barbed, yellow to purple. |
to 40 cm, open; branches 6-10 cm, loosely flexible, axes scabrous; bristles solitary, usually present only below the terminal spikelet on each branch, occasionally below non-terminal spikelets, about 5 mm. |
Spikelets | 2-2.8 mm, elliptical and turgid. |
3-4 mm, elliptic, acuminate. |
Lower | glumes about 1/3 as long as the spikelets, 3-veined; upper glumes 1/2 - 2/3 as long as the spikelets, 5-veined; lower florets often staminate; lower lemmas occasionally indurate and faintly transversely rugose; lower paleas equaling the lower lemmas; upper lemmas distinctly transversely rugose, often purple-tipped. |
glumes 1/2 as long as the spikelets, obtuse, 3-4-veined; upper glumes nearly equaling the upper lemmas, 7-veined, acute; lower lemmas exceeding the upper lemmas, 5-veined, apices involute; lower paleas nearly equaling the lower lemmas in length and width; upper lemmas obscurely transversely rugose, yellow, apiculate. |
2n | = 36, 72. |
= 54. |
Setaria parviflora |
Setaria palmifolia |
|
Distribution |
AL; AR; AZ; CA; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; MO; MS; NC; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; TN; TX; UT; VA; WA; WV; HI; PR; Virgin Islands
|
HI |
Discussion | Setaria parviflora is a common, native species of moist ground. It is most frequent along the Atlantic and Gulf coasts, but it also grows from the Central Valley of California east through the central United States and southward through Mexico to Central America, as well as in the West Indies. The plant from Oregon was found on a ballast dump; the species is not established in that state. Setaria parviflora is the most morphologically diverse and widely distributed of the indigenous perennial species of Setaria. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Setaria palmifolia is primarily an Asiatic species. It is a common species in Jamaica, and has been reported from scattered locations around the southern coast of the United States. In the Flora region it is occasionally cultivated as an ornamental for the conspicuous, plicate leaves and large panicles. In Southeast Asia the grains are eaten as a substitute for rice and the tender, thickened shoots as a vegetable. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 556. | FNA vol. 25, p. 543. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Setaria > subg. Setaria | Poaceae > subfam. Panicoideae > tribe Paniceae > Setaria > subg. Ptychophyllum |
Sibling taxa | ||
Synonyms | S. imberbis, S. gracilis, S. geniculata | |
Name authority | (Poir.) Kerguelen | (J. Konig) Stapf |
Web links |
|