Paspalum conjugatum |
Paspalum vaginatum |
|
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herbe creole, Hilo grass, muhsrasre, rehn wei, sour grass, sour paspalum, ti grass |
saltwater couch, seashore paspalum |
|
Habit | Plants perennial; stoloniferous. | Plants perennial; rhizomatous and/or stoloniferous. |
Culms | 15-80 cm, erect; nodes glabrous. |
10-79 cm, erect; nodes glabrous. |
Sheaths | glabrous, pubescent distally; ligules 0.5-0.8 mm; blades 7-23 cm long, 1.5-8 mm wide, flat. |
glabrous, sparsely long pubescent distally; ligules 1-2 mm; blades 10-19 cm long, 1.4-8 mm wide, flat or conduplicate, glabrous or pubescent, apices involute. |
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, a third branch sometimes present below; branches 1.1-7.9 cm, diverging to erect; branch axes 0.4-1.4 mm wide, winged, glabrous, margins scabrous, 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. |
3-4.5 mm long, 1.1-2 mm wide, solitary, appressed to the branch axes, elliptic-lanceolate, glabrous, light stramineous, 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 (rarely present); upper glumes and lower lemmas glabrous, 3-veined; upper florets white. |
Caryopses | 0.9-1.1 mm, white to yellow. |
2.8-3.1 mm, yellow. |
2n | = 18, 20, 40, 80. |
= 20, 40, 60. |
Paspalum conjugatum |
Paspalum vaginatum |
|
Distribution |
AL; FL; LA; MS; TX; UT; HI; PR; Virgin Islands
|
AL; CA; FL; GA; LA; MS; NC; SC; TX; HI; PR; Virgin Islands
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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 vaginatum grows in brackish and salt marshes. It is native to warm, coastal regions around the world, including the Americas. It has been grown for turf and in lawn trials, but is not yet widely used for these purposes. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 572. | FNA vol. 25. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Name authority | P.J. Bergius | Sw. |
Web links |