Rhynchospora harveyi var. harveyi

IllustratedEndemic
Synonyms: Phaeocephalum earlei (Britton) House Phaeocephalum plankii (Britton) House Rhynchospora plankii Britton
Treatment appears in FNA Volume 23. Treatment on page 231. Mentioned on page 230, 232.
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Plants perennial, cespitose, 70–110 cm. Culms erect to excurved, slender, often stiffish. Inflorescences: spikelet clusters mostly dense, branches spreading to erect, stiffish; subtending leafy bracts and bractlets, mostly exceeding clusters. Spikelets prevalently ovoid to broadly ellipsoid, 3–4 mm, apex acute; fertile scales broadly ovate to obovate or suborbiculate, sometimes cupulate, 2.5–3.5 mm, apex acute to rounded or emarginate, often mucronate. Flowers: perianth bristles 6, reaching at most to fruit midbody. Fruits 1(–2) per spikelet, 2–2.4 mm; body usually deep brown, lustrous, tumidly obovoid to suborbicular, 1.5–1.7 mm, with many fine, undulate lines of minute, isodiametric to short-rectangular pits or very finely reticulate, appearing nearly smooth; tubercle distinctly buttressed, lowconic 0.3–0.5(–0.7) mm.


Phenology: Fruiting spring–summer.
Habitat: Sands or sandy clays in open areas in pinelands, flatwoods, savannas, and prairies, often in dry or seasonally dry places
Elevation: 0–400 m

Distribution

V23 409-distribution-map.jpg

Ala., Ark., Fla., Ga., Kans., La., Miss., Mo., N.C., Okla., S.C., Tenn., Tex., Va.

Discussion

Selected References

None.

Lower Taxa

None.
Robert Kral +
W. Boott +
Ala. +, Ark. +, Fla. +, Ga. +, Kans. +, La. +, Miss. +, Mo. +, N.C. +, Okla. +, S.C. +, Tenn. +, Tex. +  and Va. +
0–400 m +
Sands or sandy clays in open areas in pinelands, flatwoods, savannas, and prairies, often in dry or seasonally dry places +
Fruiting spring–summer. +
Illustrated +  and Endemic +
Phaeocephalum earlei +, Phaeocephalum plankii +  and Rhynchospora plankii +
Rhynchospora harveyi var. harveyi +
Rhynchospora harveyi +
variety +