Difference between revisions of "Rhynchospora pusilla"
Amer. J. Sci. Arts, ser. 2, 7: 409. 1849.
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|genus=Rhynchospora | |genus=Rhynchospora | ||
|species=Rhynchospora pusilla | |species=Rhynchospora pusilla | ||
Latest revision as of 20:40, 5 November 2020
Illustrator:
Copyright:
Plants perennial, densely cespitose, 15–50(–60) cm; rhizomes absent. Culms erect or arching, leafy toward base, filiform, terete, wiry. Leaves overtopped by culm; blades linear to filiform, channeled, 0.3–0.5 mm wide, margins deeply involute, apex setaceous. Inflorescences: spikelet clusters 1–2(–3), dense to open, narrowly to broadly turbinate; branches capillary, variously elongate; leafy bracts setaceous, equaling or exceeding clusters. Spikelets variously brown, ellipsoid, 2–3 mm, apex sharply acute; fertile scales ovate to nearly orbiculate, rounded, 1.2–1.8 mm, apiculate, convexcupulate, midrib slender, mostly included. Flowers: perianth absent. Fruits 2–3 per spikelet, 0.7–0.9(–1) mm; body pale, obovoid-lenticular, (0.5–)0.6–0.9 × 0.4–0.5 mm, margin wirelike; surfaces transversely rugulose; tubercle buttonlike, depressed triangular, 0.05–0.1 mm, base lunate atop rounded fruit body.
Phenology: Fruiting summer–fall.
Habitat: Moist sands, peats and silts of low meadows, savannas, bogs, seeps, pond shores
Elevation: 0–300 m
Distribution
Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., Mexico, West Indies, Central America.
Discussion
Selected References
None.