Bulbostylis warei (Torr.) C. B. Clarke

Herbs, perennial, densely cespitose, scapose. Culms (10–)15–40(–50) cm. Leaves 1/2 length of culms; sheaths brown to red-brown, glabrous, or scabrid along ribs; blades narrowly linear, 0.7–1 mm wide, flat or involute, glabrous or scabrid along ribs, margins distally scabrid. Inflorescences: scapes 5, erect to ascending, terete, many ribbed, 1–2 mm thick, stiff; spikelets in dense globose to hemispheric, involucrate heads, 1–2 cm wide; longer involucral bracts with setaceous blades usually exceeding inflorescence, basally dilating to broad pectinate fimbriate sheaths. Spikelets pale brown or red brown, ovoid, somewhat flattened, 4–5 mm; fertile scales ovate, keeled, 4–5 mm, apex acute, puberulent, midrib included or excurrent as mucro. Flowers: stamens 3; anthers linear, 3 mm. Achenes white or yellowish, broadly trigonous-obovoid, 3-lobed, 1 mm, each lobe carinate, biconvex, apex retuse, surface coarsely, transversely rugose; tubercle a minute, dark button. 2n = 30.

Ala., Fla., Ga., N.C., S.C.

Fruiting summer–fall.

White and yellow sandhills mostly in open evergreen oak pine, or deciduous scrub oak pine forest or sandy wasteland therein; 0–200m.

Isolepis warei Torrey, Ann. Lyceum Nat. Hist. New York 3: 354. 1836; Stenophyllus warei (Torrey) Britton

Bulbostylis warei (Torr.) Clarke, Kew Bull. Add. Ser 8 : 26. 1908.
Isolepis Warei Torr. Ann. Lye. N. Y. 3 : 354. 1836. Stenophyllus Warei Britton, Bull. Torrey Club 21 : 30. 1894.
Perennial (?) ; culms relatively stout, often 1 mm. wide, 1-5 dm. high, glabrous, striate; leaves capillary or filiform, often flattened, usually much shorter than the culms, the sheaths stramineous to pale brown, lightly fimbriate at the apex; inflorescence terminal, the densely capitate spikelets surrounded by pectinate-fimbriate bracts equaling or much exceeding the spikelets ; spikelets congested, flattened, 6-10 mm. long ; scales ovate, brown, appressed, strongly nerved, acute to short-mucronate, long-ciliate at the apex; achenes (rarely maturing) obtusely trigonous, broadly obovate with narrowed base, 1.0 mm. long, 0.8 mm. wide, retusely 3-lobed at the apex, glistening white, the transverse undulations obscure ; tubercle minute, conic; style filiform (2.5 mm. long below the branches); stamens 3, the anthers 1.5 mm. long.
Type locality: Tampa Bay, West Florida {N. A. Ware). Distribution : Dry sand : Florida and Georgia.

Bulbostylis warei là một loài thực vật có hoa trong họ Cói. Loài này được (Torr.) C.B.Clarke mô tả khoa học đầu tiên năm 1908.