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FNA | Family List | FNA Vol. 23 | Cyperaceae | Scleria

3. Scleria baldwinii (Torrey) Steudel, Syn. Pl. Glumac. 2: 175. 1855.

Hypoporum baldwinii Torrey, Ann. Lyceum Nat. Hist. New York 3: 382. 1836; Scleria costata (Britton) Small

Plants perennial, sometimes cespitose; rhizomes horizontal, nodulose. Culms stout, 30–90 cm, base smooth or slightly scabrous distally. Leaves: sheaths purple or brownish, tight, smooth or weakly ribbed, narrowly winged, glabrous; contra-ligules minute, obtuse; blades linear, keeled, shorter than culms, 1–5 mm wide, rigid, glabrous or slightly scabrous on margins. Inflorescences 1–2 cm; clusters 1, 5–15 mm wide, each with 3–7 spikelets; bracts subtending inflorescence awl-shaped, 4–15 cm × 1–4 mm. Spikelets bisexual and staminate, 5–10 mm; staminate spikelets many flowered; staminate scales lanceolate, membranous, pistillate scales ovate-acuminate, rigid. Achenes dull white or often brownish gray or with dark gray bands, obscurely trigonous, ovoid-globose, 3–4 mm, smooth, often ribbed, base without pores, sides concave between angles, distinctly trigonous, pointed, apex conspicuously mucronate; hypogynium obsolete, reduced to small brownish ring just distal to pointed base.

Fruiting spring–summer. Wet, peaty or sandy soils in pinelands, savannas, and borders of ponds and lagoons; 0–100 m; Ala., Fla., Ga., La., Miss., S.C., Tex.; West Indies (Bahamas, Cuba).


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