| Literature for Cyperus hillebrandii
Wagner et al., 1990, 1999. Literature for Cyperus hillebrandii subsp. hillebrandii
Wagner et al., 1990, 1999. Literature for Cyperus hillebrandii subsp. decipiens
Wagner et al., 1990, 1999.
|Cyperaceae -- The Sedge Family||Bibliography|
||Perennials with short and sometimes slightly thickened rhizomes clothed with brown or reddish brown basal sheaths and their fibrous remnants; culms 15-60(-90) cm tall, 2-6 mm in diameter near base, trigonous, smooth.
||Leaves stiff, linear, shorter than to longer than the culm, 3-12 mm wide; lower sheaths tinged reddish brown.
||Inflorescences umbelliform, simple or compound, dense to lax, 2-5 cm long, 3-12 cm wide, rays 6-8, 1-4 cm long, spikes solitary or with 1-3 lateral spikes, cylindrical to oblong cylindrical, 2-4 cm long, 8-10 mm wide, moderately densely bearing numerous spikelets; involucral bracts 4-8, spreading, the lower 2-5 longer than the inflorescence, the lowest up to 15 cm long and ca. 3 mm wide;
spikelets 6-8 flowered, elliptic to oblong elliptic or oblong lanceolate, somewhat flattened, turgid with obtuse angles, 3-6 mm long, 1.8-2.3 mm wide, rachilla narrowly winged; glumes pale reddish brown, reddish brown, or brown, membranous to thin and chartaceous with hyaline margins, tightly imbricate, broadly ovate, 2.5-3.5 mm long, 1.8-2 mm wide, 9-11 veined, midnerve often prolonged into a minute mucro, apex rounded.
||Achenes oblong ellipsoid, trigonous, 1.2-1.5 mm long, 0.5-0.7 mm wide.