African Plant Database

Isolepis costata Hochst. ex A. Rich.
Information on the genus : Isolepis
Status for MA : accepted (present)
Status for SA : accepted (present)
Status for TA : accepted (present)
Synonym(s) Homotypic
 Scirpus costatus (Hochst. ex A. Rich.) Boeckeler (1869)
Synonym(s) Heterotypic
=Isolepis setacea var. abyssinica Boeckeler (1858)
=Scirpus macer Boeckeler (1884)
=Scirpus costatus var. macer (Boeckeler) Cherm. (1927)
=Scirpus multicostatus Baker (1883)
=Isolepis costata var. macra (Boeckeler) B.L. Burtt (1986)
Ecology and distribution
Trop. Afr.
Biology : Tufted annual or short-lived perennial herb; rhizome 1-22x0,7-2 mm, ascending, whitish; culms 7-81 cm tall, 0,3-1,3 mm Ø; leaf sheath brown 0,8-10 cm long, 0,5-1,8 mm Ø; blade 1-9x0,1-0,8 mm; inflorescence pseudolateral, proliferating; spikelets 1-25, each 1,4-5,5x0,7-2,1 mm, with 4-31 glumes.
Ecology : Seepage areas; stream banks (in grassland); forests; swamps; forest with Podocarpus latifolius, Olea capensis, Syzygium guineense at small brook, with open glades and patches of bamboo and Hagenia abyssinica, Hypericum revolutum woodland, at small stream; 1700-4000 m alt.
  Recognized by the reduced leaf blade, proliferating inflorescence (Gordon-Gray & al. in S. Afric. J. Bot. 75: 166, 2009), and longitudinally striate nutlets.
South. Afr.
Biol./Eco : perennial-Herb, Helophyte, Cyperoid- Ht 0.1 - 0.65 m. Alt: 230 - 5540 m. Distribution: BOT, LES, NAM, EC, FS, GA, KN, LP, MP, NC, NW, WC, SWZ
Biol./Eco : Herb; Montane, Subhumid; Forest, Freshwater Wetland, Woodland; 1000-1499 m, 1500-1999 m, 2000-2499 m; distribution: Africa.

Bibliography for Tropical Africa :
  • DARBYSHIRE, I. KORDOFAMI, M. & AL. (2015). The plants of Sudan and South Sudan, An annoted checklist. Kew Publishing : 112

Bibliography for Southern Africa :
  • Kew Bull. 57: 316 (2002)

Bibliography other :
  • KIPKOECH S. & AL. (2020). An annotated checklist of the vascular plants of Aberdare Ranges Forest, a part of Eastern Afromontane Biodiversity Hotspot PhytoKeys 149: 20
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Record n°36708
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