Compilation
Cyperus polystachyos

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Name

Identification
Cyperus polystachyos (Torr.) Fernald [family CYPERACEAE ] (stored under name); Verified by Elizabeth Fortson Wells, Pycreus ferrugineus (Poir.) C.B.Clarke [family CYPERACEAE ] Verified by Clarke, C.B.,
Related name
  • Cyperus olivaceus
  • Cyperus microdontus
  • Pycreus polystachyos
  • Cyperus polystachyos
  • Pycreus olfersianus
  • Pycreus intactus
  • Pycreus ferrugineus
  • Cyperus capillaris
  • Cyperus haspan
  • Cyperus bulbosus
  • Pycreus hildebrandtii
  • Cyperus not on sheet
  • Cyperus sp.
  • Cyperus fugax

Flora

Entry for Pycreus Hildebrandtii C. B. Clarke [family CYPERACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical Africa, Vol 8, page 264, (1902) Author: (By C. B. Clarke.)
Names
Pycreus Hildebrandtii C. B. Clarke [family CYPERACEAE], in Durand & Schinz, Conspect. Fl. Afr. v. 538.
Cyperus polystachyos C. B. Clarke var. micans [family CYPERACEAE], partly in Journ. Linn. Soc. xxi. 54.
Cyperus Hildebrandtii K. Schum. [family CYPERACEAE], in Engl. Pfl. Ost-Afr. C. 118, not of Boeck.
Information
Roots fibrous. Stems 1 ft. long, rather stout. Leaves 2/3 the length of the stem, up to 1/6 in. broad. Umbel compound; primary rays 7, slender, 2 1/2 in. long; lowest bract up to 5 by 1/6 in. Secondary umbels often of 3 very slender rays hardly 1/3 in. long, ebracteolate. Spikes loose, of 7–20 spikelets. Spikelets 1/2– 2/3 by 1/20– 1/16 in., 10–30-flowered, bright brown; glumes rather distant, minute.
Distribution
British East Africa Nile Land Ozi, Gregory! Rabai Hills, near Mombasa, Taylor!Zanzibar Mozamb. Dist. Hildebrandt, 1071!
Notes
This and the preceding 4 species may be treated as extreme forms of P. polystachyos, Beauv. P. Hildebrandtii, with its strong development and compound umbel, yet with excessively narrow spikelets and capillary rays, appears as distinct as any of the preceding 4.

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