African Plant Database

Pycreus subtrigonus C.B. Clarke
Protologue : Consp. Fl. Afr. 5: 542 (1894); Th. Dur. & Schinz, Etudes Fl. Congo, Pt. 1: 282 (1896) [descr.]
Information on the genus : Pycreus
Status for TA : accepted (present)
Synonym(s) Homotypic
 Cyperus subtrigonus (C.B. Clarke) Kük.
Ecology and distribution
Trop. Afr.
Biology : Perennial herb with culms at end of erect or creeping stolons 1 mm Ø; culms solitary or tufted, 10-30 cm long, c. 1 mm Ø, trigonous-terete, glabrous, smooth; leaves only in lower 3-8 cm of culm; upper sheaths green, lower straw-coloured to reddish-brown; blades flat, 4-10 cm long, 1-3 mm wide; inflorescence a solitary spike, 1,5-3 cm wide, of 3-30 spikelets; these sessile, contracted, ± linear, 10-18x1,7-2 mm, light yellowish-brown, somewhat flattened, 10-30-flowered; glumes ovate, 1,6-2 mm long, reddish-brown; nutlet obovoid, with a protuberance on each side so it is almost trigonous, 0,5-0,5 mm, blackish-brown.
Ecology : Seasonally humid meadows; forest clearings on hydromorphic soil; 400-700 m alt.
  Very close to P. flavescens, P. lanceolatus.
  • Th. Dur. & Schinz, Etudes Fl. Congo, Pt. 1: 282 (1896).
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    see under The International Plant Name Index
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    Record n°36263
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