Compilation
Isolepis rivularis

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Name

Identification
Isolepis natans (Thunb.) A.Dietr. [family CYPERACEAE ] (stored under name); Isolepis rivularis Schrad. [family CYPERACEAE ]
Related name
  • Isolepis natans
  • Isolepis rivularis
  • Scirpus rivularis

Flora

Entry for SCIRPUS rivularis Boeck. [family CYPERACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Capensis
Resource Type
Reference Sources
Entry From
Flora Capensis, Vol 7, page 149, (1900) Author: (By C. B. CLARKE.)
Names
SCIRPUS rivularis Boeck. [family CYPERACEAE], in Linnæa, xxxvi. 504
SCIRPUS natans Thunb. [family CYPERACEAE], Prod. 17; Fl. Cap. ed. Schult. 95 ?; Spreng. in Flora, 1829, i. Beil. 12, not of Griseb.
SCIRPUS setaceus Spreng. var. [family CYPERACEAE], in Flora, 1829, i. 145 partly.
Isolepis rivularis Schrad. [family CYPERACEAE], Anal. Fl. Cap. 19, t. 1, fig. 5; Kunth, Enum. ii. 194.
Isolepis palustris Schrad. [family CYPERACEAE], Anal. Fl. Cap. 17, t. 1, fig. 7; Nees in Linnæa, viii. 80.
Isolepis pallida Nees [family CYPERACEAE], in Linnæa, viii. 81, t. 3, fig, 2, c; x. 153; Kunth, Enum. ii. 195.
Isolepis natans Dietr. [family CYPERACEAE], Sp. Pl. ii. 106?; Nees in Linnæa, vii. 497, excl. var. β; viii. 80; x. 151, excl. syn. R. Br.
Information
rootstock weak, often decumbent, rooting; stems 2–12 in. long, usually thicker than in S. cernuus, weak, flaccid, usually drying black; nut minutely apiculate; otherwise as S. cernuus. null
Distribution
CENTRAL REGION Somerset Div.; damp places on the summit of Bosch Berg, 4800 ft., MacOwan, 1742!COAST REGION Cape Div.; Table Mountain, Ecklon, 878! Alexandria Div.; between Hoffmanns Kloof and Drie Fontein, 1000–2000 ft., Drège, 7410! Albany Div.; Grahamstown, Schœnland, 584!EASTERN REGION Natal; Inanda, Wood, 227! Umgeni River, Rehmann, 7453!SOUTH AFRICA without locality, Thunberg; Zeyher, 345! Wallich! Petit Thouars!WESTERN REGION Little Namaqualand; Kamies Bergen, near Ezels Fontein and at Rood Berg, 3500–4000 ft., Drège, 2463!
Notes
This appears to creep on mud or on the margin of water. The whole plant, and the spikelets, are blacker than S. cernuus.

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