Bulbostylis barbata

(Rottbøll) C. B. Clarke in J. D. Hooker

in J. D. Hooker, Fl. Brit. India 6: 651. 1893

Basionyms: Scirpus barbatus Rottbøll Descr. Pl. Rar., 27. 1772
Synonyms: Bulbostylis floridana (Britton) Fernald Isolepis barbata (Rottbøll) R. Brown Scirpus dussii Boeckeler Stenophyllus floridanus Britton ex Nash
Treatment appears in FNA Volume 23. Treatment on page 133. Mentioned on page 132.
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Herbs, annual, densely cespitose, scapose, low. Culms 5–20(–30) cm. Leaves to 2/3 length of scapes; sheaths greenish or tan, glabrous or hispidulous on ribs; blades spreading, filiform, 0.5 mm wide, involute, margins scabridulous. Inflorescences: scapes filiform, coarsely few ribbed, to 0.5 mm thick; spikelets in terminal headlike, involucrate clusters, 1–1.5 cm wide; involucral bracts with setaceous blades rarely exceeding inflorescence. Spikelets red to red-brown or dull brown, lance-ovoid to lanceoloid or linearoblong; fertile scales lanceolate, keeled, 1.2–2.2 mm, glabrous, midrib excurrent as mucro. Flowers: stamens 1; anthers oblong, 1 mm. Achenes trigonous, obovoid, 0.5–0.6 mm, angles often sharp, faces flat or slightly concave, finely reticulate; tubercle a small button. 2n = 10.

Phenology: Fruiting summer–fall.
Habitat: Moist to dry sands and sandy peats, weedy in open disturbed sandy sites
Elevation: 0–500 m

Distribution

V23 208-distribution-map.jpg

Ala., Fla., Ga., La., Miss., N.C., S.C., Tenn., Tex., West Indies (Martinique), Central America, tropical Africa (including Madagascar), tropical Asia (including Indonesia), tropical Atlantic Islands, Indian Ocean Islands, tropical Pacific Islands, tropical Australia.

Discussion

References

None.

Lower Taxa

No lower taxa listed.