|Pelargonium exhibens Vorster|
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S. Afr. J. Bot. 52 (1986) 481.
A sparsely branched, scandent, almost non-aromatic, evergreen shrublet, up to 300 mm tall. Stems smooth, herbaceous, microscopically sericeous, brown at maturity.
Trilobate to ternate, slightly succulent. Lamina cordiform in outline, base cordate, apex lobed, margin shallowly lobed, 40-60(-75) mm x 45-55(-70) mm, macroscopically glabrous and microscopically sparsely sericeous. Petiole (15-)30-80(-100) mm, stipules triangular, membraneous.
A 3-5-flowered pseudo-umbel borne on a lateral peduncle.
5, narrowly obovate, hylaine or pale green with darker longitudinal lines and often a reddish tinge near bases, 7-10 x 1-2 mm.
5, grossly unequal, spathulate, white to cream, posterior and anterior petals diverging at basees to expose stamens and pistil. Posterior two 14-22 x 4-10 mm, reflexed from middle at >90o, with feathery markings near base; anterior three 9-13 x 2.5-4.5 mm, slightly recurved.
5 fertile, subequal, pollen orange.
Succulent mountain scrub landscape just W of Graaf Reinet, Eastern Cape. P. laxum is fairly common here, as well as numerous succulent genera such as Haworthia, Aloe, Othonna, Lachenalia, Adromischus, Senecio, Pachypodium, and numerous mesembs.
Sarcocaulon vanderietieae is very common around Graaff Reinet. The very free-flowering and the only summer-growing species in the genus forms remarkably big, yet still very low bushes. While many other succulent plants, e.g. P. laxum, are often found grazed to the ground, these respectable plants are obviously left in piece.
Vorster P. (1986a).
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