Pycreus elegantulus (Steud.) C.B. Clarke |
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Information on the genus : Pycreus |
Basionym : Cyperus elegantulus Steud. |
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Status
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Status for SA : | accepted (present) |
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Status for TA : | accepted (present) |
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Synonym(s) Homotypic |
Pycreus niger subsp. elegantulus (Steud.) Lye (1981) |
Cyperus elegantulus Steud. |
Pycreus elegantulus (Steud.) C.B. Clarke var. elegantulus |
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Synonym(s) Heterotypic |
=Cyperus atronitens Hochst. (1841) |
=Pycreus elegantulus var. submelanostachyus Kük. (1936) |
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Taxon infra-specific |
Pycreus elegantulus (Steud.) C.B. Clarke var. elegantulus |
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Ecology and distribution |
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Biology : |
Perennial herb with slender stolons, sometimes appearing annual without developed stolons; culms tufted, 20-70 cm long, 1,1-3 mm Ø, trigonous, smooth; leaf sheaths (pale) brown, 2,5-10,5 cm long; blades 2-4 per culm, linear, flattish-plicate, 10-35 cm x 2-4,7 mm, acute to acuminate, apex scabrid; inflorescence capitate or simple, when simple primary branches 1-5, 1-5,5 cm long; spikelets in dense clusters, sessile and at end of primary branches; spikelets 7-35 per cluster, to many in a head, ovoid, 3,5-14,5 x 1,6-2 mm; glumes black. |
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Ecology : |
Swamps; river edges; wet forest margins; wet grasslands; (abandoned) plantations; track sides; rain-forest with Albizia, Macaranga, Croton, Ocotea; seepage area in Hagenia abyssinica woodland; grassland plateau; riverine forest; swampy depressions in grassland; 800-3600 m alt. |
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The true Pycreus niger (Ruiz & Pavon) Cufod. is plant from tropical and subtropical America |
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Bioko/Fernando Poo; S. Africa; Saudi Arabia, Yemen. |
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Bibliography for Tropical Africa :
- DARBYSHIRE, I. KORDOFAMI, M. & AL. (2015). The plants of Sudan and South Sudan, An annoted checklist. Kew Publishing : 114
Bibliography for Southern Africa :
- Repert. Spec. Nov. Regni Veg. 28: 17-24 (1930).
- HUTCHINSON, J. & J.M. DALZIEL (1972). Flora of West Tropical Africa: Second Edition 3[2]: 300
- Nord. J. Bot. 1: 617-622 (1981).
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More info on : |
see under Jstor_African Plant Initiative |
see under Flore d'Afrique Centrale |
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Map |
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More information >> ( work in progress )
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Record n°36208 modified 2007-04-03 |
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