Rhynchospora eximia |
|
---|---|
Florida beaksedge |
|
Habit | Plants perennial or annual, single or cespitose, (10–)20–50 cm; rhizomes absent. |
Culms | spreading to erect, leafy, obtusely triangular. |
Leaves | often exceeding inflorescences; blades narrowly linear, proximally flat, 1–3 mm wide, apex trigonous, tapering. |
Inflorescences | terminal and axillary, clusters of 1–5 corymbs; leafy bracts much exceeding corymbs. |
Spikelets | few to several, on ascending, stiff, short-to-elongate branches, red-brown to brown, lanceoloid, (5–)6–10 mm, apex acuminate; fertile scales many, ovate, shallowly convex, 5 mm, apex acuminate; midrib short-excurrent or not. |
Flowers | perianth absent. |
Fruits | 1.5 mm; body dark brown to black, tumidly lenticular, nearly orbicular, 0.8–0.9 × 0.6–0.7 mm, margins grooved, discontinuous with tubercle; surfaces transversely wavyrugose, ridges of contiguous rows of vertical, linear, raised cells; tubercle broad, low triangular, 0.2–0.3 mm, crustaceous, base capping fruit summit, raised at ends, apex shortacuminate. |
Rhynchospora eximia |
|
Phenology | Fruiting all year. |
Habitat | Moist to wet sandy peaty swales, pond shores, depressions in savannas, moist waste areas |
Elevation | 0–100[–1000] m (0–300[–3300] ft) |
Distribution |
FL; Mexico; Central America; South America; West Indies; Africa |
Discussion | Rhynchospora eximia is often found at elevations from near sea level to over 1000 m in the tropics. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 23, p. 216. |
Parent taxa | |
Sibling taxa | |
Synonyms | Spermodon eximius, Psilocarya schiedeana, R. oxycephala, R. psilocaroides |
Name authority | (Nees) Boeckeler: Linnaea 37: 601. (1873) |
Web links |