Cyperus seslerioides Kunth

Herbs, perennial, cespitose; rhizomes knotty, much branched, 2–5 mm diam., scaly. Culms roundly trigonous, basally with dark fibrous remnants of old leaf sheaths, (0.5–)4–30 cm × 0.4 –1.1 mm, glabrous. Leaves 1–5, flat, involute toward apex, 3–18 cm × 1–2.5(–3) mm. Inflorescences: heads hemispheric to spheric, (3–)6–15(–24) mm diam.; rays absent; bracts 2–5, horizontal to reflexed, parallel to culm, 1–13 cm × 1–3 mm, margins and keel sparsely minutely scabridulous distally. Spikelets (5–)20–60(–100), whitish to greenish or brownish, ovoid to oblong-lanceoloid, compressed, 3–7 × 2–4 mm; floral scales (8–)10–12(–24), laterally milky white (infrequently yellowish, pale greenish, brown, or bronze-white), medially green or white, laterally ribless, medially 3-ribbed, ovate to ovate-lanceolate, 1.6–3(–3.4) × 0.8–1.3 mm, apex mucronate to acuminate. Flowers: stamens 3; anthers linear, (0.4–)0.6–0.8(–1.1) mm, connective not prolonged; styles 0.8–1.8 mm; stigmas (0.5–)1–1.5(–2) mm. Achenes brown to blackish, trigonous, broadly obovoid, 0.5–1 × 0.3–0.75 mm, base slightly stipelike, ± cuneate to rounded, apex apiculate, papillose.

Ariz., Tex.; Mexico; Central America (Honduras); South America.

Fruiting summer.

Seeps, damp meadows in montane forests; 1000–2000m.

Cyperus seslerioides is a species of sedge that is native to southern parts of North America, Central America and parts of South America.

The species was first formally described by the botanist Carl Sigismund Kunth in 1816.

Cyperus seslerioides adalah spesies tumbuhan yang tergolong ke dalam famili Cyperaceae. Spesies ini juga merupakan bagian dari ordo Poales. Spesies Cyperus seslerioides sendiri merupakan bagian dari genus Cyperus. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Kunth.

Cyperus seslerioides là loài thực vật có hoa trong họ Cói. Loài này được Kunth mô tả khoa học đầu tiên năm 1817.