African Plant Database


Pycreus pumilus (L.) Nees
Protologue : Linnaea 9: 283 (1834)
Information on the genus : Pycreus
Basionym : Cyperus pumilus L.
 
 
Status
Status for MA : accepted (present)
Status for SA : accepted (present)
Status for TA : accepted (present)
 
Synonym(s) Homotypic
 Cyperus pumilus L. (1756)
 
Synonym(s) Heterotypic
=Pycreus nitens Nees
=Pycreus pumilus subsp. patens (Vahl) Podlech
=Cyperus pumilus var. patens (Vahl) Kük.
=Cyperus patens Vahl (1805)
=Dichostylis patens (Vahl) Palla (1889)
=Pycreus patens (Vahl) Cherm. (1930)
=Cyperus nitens Vahl
=Cyperus pumilus var. muticus (Boeckeler) C.B. Clarke
=Cyperus terminalis Steud. (1821)
=Pycreus nitens C.B. Clarke (1901)
=Cyperus truncatulus Steud. (1842)
=Cyperus nitens var. patens Boeckeler (1867)
 
Ecology and distribution
Trop. Afr.
Biology : Annual herb 1-40 cm tall; culms tufted, 1-18 cm long, 0,3-1 mm Ø, triquetrous, smooth; leaf sheath brown, 0,5-2 cm long, sometimes almost absent; blade linear, flat, 2,4-15 cm x 1-2 mm, acuminate, glabrous to minutely scabrid; inflorescence capitate or simple with primary branches 0-4, 1,1-4,5 cm long; spikelets loosely arranged in digitate clusters, sometimes on an elongated axis, the clusters at end of primary branches, often 1 or more clusters sessile; spikelets 6-12 per cluster, oblong, flattened, 5-14(-20) x 1,3-2 mm.
Ecology : Along drainage channels; seasonal wet hollows in grassland; stream sides; riverbeds; swamps; often on shallow soils over rocks; cultivated and disturbed habitats on sandy soils; hollows in coastal dunes; wooded savannas; rice fields; dry bottoms of ponds and on their edges; wooded marshes in sunny places; rather damp sandy fields with a clayey subsoil with dwarf Eriocaulaceae; 0-2100 m alt.
  Variable species (many varieties described). “African specimens have generally longer and broader glumes than Indian, but the ranges overlap” (Fl. W. Trop. Afr., ed. 2, 3/2: 302, 1972).
  Could be confused with Cyperus cuspidatus, C. tenuispica, Pycreus hildebrandtii, P. polystachyos.
South. Afr.
Biol./Eco : annual-Herb, Helophyte, Cyperoid- Ht 0.05 - 0.3 m. Alt: ? - 1675 m. Distribution: BOT, NAM, GA, KN, LP, MP, SWZ
Mada.
Biol./Eco : Herb; distribution: Comoros, Mascarenes, Seychelles, Africa, Asia, Australasia/Pacific,

Bibliography for Tropical Africa :
  • PEYRE DE FABRÈGUES B. & J. P. LEBRUN (1976). Catalogue des plantes vasculaires du Niger. Maison Alfort : 341
  • BOUDET G. & J.P. LEBRUN (1986). Catalogue des plantes vasculaires du Mali. Etudes et Synthèses IEMVT 16 : 363
  • Cat. Pl. Vasc. Burkina Faso:55 (2012)
  • DARBYSHIRE, I. KORDOFAMI, M. & AL. (2015). The plants of Sudan and South Sudan, An annoted checklist. Kew Publishing : 115
  • CÉSAR J. & C. CHATELAIN (2019). Flore illustrée du Tchad. Conservatoire et Jardin botaniques de Genève, Coopération Suisse & Univ. N'Djaména : 127

Bibliography for Southern Africa :
  • HUTCHINSON, J. & J.M. DALZIEL (1972). Flora of West Tropical Africa: Second Edition 3[2]: 302
 
More info on :
see under Jstor_African Plant Initiative
see under Catalogue de Madagascar
see under Tropicos.org. Missouri Botanical Garden
see under Flora of Zimbabwe
 
Map
More information >> ( work in progress )
 
Record n°36227
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