Paspalum malacophyllum |
Paspalum plicatulum |
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rib paspalum |
brownseed paspalum |
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Habit | Plants perennial; cespitose, sometimes with short rhizomes. | Plants perennial; shortly rhizomatous, often indistinctly so. |
Culms | 90-200 cm, erect; nodes sunken, glabrous or pubescent, brown. |
30-110 cm, stout, erect; nodes glabrous. |
Sheaths | pubescent; ligules 4-5 mm, membranous, brown, acute; blades 12-40 cm long, 8-35 mm wide, flat or conduplicate, pubescent below, glabrous above, distinctly pubescent basally. |
glabrous; ligules 2-3 mm; blades to 35 cm long, 2-5.4 mm wide, conduplicate (rarely flat). |
Panicles | terminal, with 8-25 racemosely arranged branches; branches 1-8 cm, divergent to erect; branch axes 1-1.2 mm wide, margins scabrous, terminating in a spikelet; pedicels 0.2-0.4 and 0.5-1.2 mm long, flattened, scabrous. |
terminal, with 2-7 racemosely arranged branches; branches 1.6-7.1 cm, usually divergent, rarely merely ascending; branch axes 0.6-1.1 mm wide, glabrous, terminating in a spikelet. |
Spikelets | 1.8-2 mm, paired, appressed to or divergent from the branch axes, oblong-elliptic, white to stramineous. |
2.5-3 mm long, 1.5-2.2 mm wide, paired, appressed to the branch axes, elliptic-ovate, light to dark brown. |
Glumes | absent; lower lemmas glabrous, ribbed over the veins, sulcate between, 5-veined, margins entire; upper lemmas as long as the lower ones, longitudinally papillose-striate, glabrous, pale-colored. |
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Lower glumes | absent; upper glumes usually with short, appressed pubescence, rarely glabrous, 5-veined, margins entire; lower lemmas with short, appressed pubescence or glabrous, 3-veined, margins entire; upper florets dark glossy brown. |
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Caryopses | 1.4-1.6 mm, brown. |
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Upper | florets white to stramineous. |
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2n | = 40, 60. |
= 20, 40, 60. |
Paspalum malacophyllum |
Paspalum plicatulum |
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Distribution |
FL; GA; TX |
AL; FL; GA; LA; MS; SC; TX; PR; Virgin Islands
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Discussion | Paspalum malacophyllum is native from Mexico to Bolivia and Argentina. It was introduced to the southern United States for forage and soil conservation, and is now established in the southeastern United States, growing in disturbed sites at scattered locations. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Paspalum plicatulum grows in prairies, along forest margins, and in disturbed areas. Its range extends from the southeastern United States through the Caribbean and Mexico to Bolivia, Paraguay, and Argentina. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 584. | FNA vol. 25, p. 581. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Synonyms | P. texanum | |
Name authority | Trin. | Michx. |
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