Orbea gerstneri (Letty) Bruyns subsp. gerstneri
(name current 2016)
(Orbeopsis gerstneri subsp. gerstneri)
(Orbeopsis gerstneri subsp.
Swaziland abundance: rare
Red Data Book Information:
Status: EN B1B2c
Threats: Habitat degradation, grazing
Distribution: Ingwavuma Poort
One subpopulation said to be in Swaziland, but further taxonomic scrutiny is required. Partial habitat decline induced by cattle grazing is a threat.
Description (Compton's Flora of Swaziland*):
Caralluma gerstneri - Long rhizomes. Stems forming clumps, erect, branching, deeply four-angled, up to 8 cm high with long triangular sharp pointed teeth up to 1,3 cm long on ridges; c 3 cm diam including spines. Corolla c 3 5 cm diam, lobes broad triangular, C 1,5 cm long x 8 mm wide, velvety, almost covered with dark purple-red spots and blotches on bowl-shaped tube. Outer corona lobes three-toothed, inner two-homed with points meeting in centre. Fruit-half erect, c 8 cm long X 6 mm diam, smooth.
* Where species names have changed, these have been matched according to herbarium specimens quoted in this publication.