Paspalum praecox |
Paspalum floridanum |
|
---|---|---|
early paspalum |
Florida paspalum |
|
Habit | Plants perennial; shortly rhizomatous. | Plants perennial; rhizomatous. |
Culms | 5-160 cm, erect, not rooting at the lower nodes; nodes glabrous. |
80-210 cm, erect; nodes glabrous or pubescent. |
Sheaths | densely pubescent, occasionally glabrous; ligules 1-2.2 mm; blades to 55 cm long, 2.2-8.3 mm wide, conduplicate (occasionally flat), glabrous below, pubescent above. |
glabrous or pubescent; ligules 1.2-3.3 mm; blades to 52 cm long, 3-18 mm wide, flat, glabrous or pubescent, usually densely pubescent behind the ligules. |
Panicles | terminal, with 2-10 racemosely arranged branches; branches 0.8-10.3 cm, divergent to spreading, often arcuate, terminating in a spikelet; branch axes 0.8-2 mm wide, narrowly winged, glabrous, margins scabrous. |
terminal, with 1-6 racemosely arranged branches; branches 3-17.9 cm, divergent to erect, terminating in a spikelet; branch axes 0.3-1.8 mm wide, glabrous, the margins scabrous. |
Spikelets | 2.1-3.1 mm long, 2-2.8 mm wide, paired, imbricate, appressed to divergent from the branch axes, orbicular to suborbicular, stramineous. |
2.9-4.1 mm long, 1.9-3.1 mm wide, paired, imbricate, appressed to the branch axes, elliptic to suborbicular to orbicular, glabrous, stramineous. |
Caryopses | 1.9-2.1 mm, brown. |
2.8 mm, amber. |
Lower | glumes absent; upper glumes and lower lemmas glabrous, 3-veined, margins entire; upper florets white to light yellow. |
glumes absent; upper glumes glabrous, 5-veined, margins entire; lower lemmas glabrous, lacking ribs over the veins, 3-veined, margins entire; upper florets golden brown. |
2n | = 20, 40. |
= 120, 140, ca. 160-170. |
Paspalum praecox |
Paspalum floridanum |
|
Distribution |
AL; AR; FL; GA; IL; LA; MS; NC; SC; TX; VA
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AL; AR; DC; DE; FL; GA; IL; IN; KS; KY; LA; MD; MO; MS; NC; NJ; OH; OK; PA; SC; TN; TX; VA
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Discussion | Paspalum praecox grows in pitcher plant bogs, wet pine flatwoods, wet savannahs, prairies, and wet streamhead ecotones. It is restricted to the United States, growing predominantly on the southeastern coastal plain. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Paspalum floridanum grows along the edges of forests, flatwoods, and pinewoods and in open areas. It is a frequent component of dry-mesic soils in longleaf pine-oak-grass ecosystems, and is restricted to the eastern United States. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 597. | FNA vol. 25, p. 599. |
Parent taxa | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum | Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum |
Sibling taxa | ||
Synonyms | P. praecox var. curtisianum, P. lentiferum | P. longicilium, P. floridanum var. glabratum, P. difforme |
Name authority | Walter | Michx. |
Web links |