Cyperus sphacelatus Rottb.

Herbs, annual or perennial, cespitose. Culms trigonous, 15–60 cm × 1–3 mm, glabrous. Leaves 2–6, flat to V-shaped, 6–30(–40) cm × 2–4 mm. Inflorescences: spikes broadly ellipsoid, 5–45 × 10–30(–45) mm; rays (2–)5–9, (0.3–)3–10 cm; rachis 4–17 mm; bracts 5–6, horizontal to ascending, V-shaped, 1.5–30 cm × 0.5–4 mm; rachilla persistent, wings hyaline, 0.4–0.5 mm wide. Spikelets 5–30, pale greenish white or stramineous, compressed, linear-lanceoloid, 7–35 × (1.2–)1.4–2 mm; floral scales deciduous, 6–34, spreading or appressed, laterally greenish white, often reddish or brown speckled, medially green, laterally 3–5-ribbed, medially 3-ribbed, elliptic, (2.2–)3–4(–4.4) × (1.2–)1.8–2.2 mm, apex acute. Flowers: anthers 0.6 mm; styles 0.6–1.2 mm; stigmas 1–1.4(–1.7) mm. Achenes reddish brown to dark brown, stipitate, narrowly ellipsoid, 1.4–2 × 0.6–0.9 mm, apex apiculate, surfaces puncticulate.

introduced; Fla.; West Indies; Central America; South America; Africa.

Fruiting summer.

Disturbed, wet soils; 0m.

Cyperus balbisii Kunth

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

Cyperus sphacelatus là loài thực vật có hoa trong họ Cói. Loài này được Rottb. mô tả khoa học đầu tiên năm 1773.