Difference between revisions of "Rhynchospora microcephala"
Fl. S.E. U.S., 195. 1903.
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|species=Rhynchospora microcephala | |species=Rhynchospora microcephala | ||
Revision as of 21:33, 27 May 2020
Illustrator:
Copyright:
Plants perennial, cespitose, 30–90 cm; rhizomes absent. Culms arching or erect, leafy, nearly terete, multiribbed, slender. Principal leaves overtopped by culm; blades linear, proximally flattened, 1–3 mm wide, apex tapering, trigonous. Inflorescences: spikelet clusters 2–6, mostly widely spaced; clusters dense, hemispheric to mostly spheroid, 0.5–1 cm thick. Spikelets dark redbrown to dark brown, lanceovoid, (2–)2.5–3.5(–4) mm, apex acute; fertile scales elliptic, 2–3 mm, apex acute, midrib shortexcurrent or not. Flowers: perianth bristles 6, reaching tubercle tip, retrorsely barbellate. Fruits 1 per spikelet, 2.5–3 mm; body pale brown with light center, lenticular, obovoid distal to stipe, 1.1–1.5 × 0.9–1.1 mm, margins pale, wirelike, surfaces slick; tubercle triangularsubulate, 0.9–1.2(–1.5) mm, at least 0.5 mm wide at base.
Phenology: Fruiting summer–fall.
Habitat: Sands and sandy peats of savanna swales, pineland seeps, bogs, ditches, pond shores and banks
Elevation: 0–200 m
Distribution
Ala., Del., D.C., Fla., Ga., La., Md., Miss., N.J., N.C., S.C., Va., West Indies (Cuba).
Discussion
Selected References
None.