|Pelargonium proliferum (Burm. f.) Steud.|
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Nomenclator Botanicus 2 (1841) 289.
Lamina 15-80x6-20 mm, variable from simple (lanceolate to ovate) to irregularly pinnately or bipinnately incised. Pinnae 8-30 mm long. Glabrous to sparsely hirsute with appressed hairs, margins ciliate. Petiole 15-45 cm, erect. Stipules subulate, adnate to petioles for half their length.
Branched scape, with 2-4 pseudo umbels, each with 2-9 flowers. Peduncle 2-8 cm, hirsute with appressed curly hairs and interspersed with long glandular hairs or only glandular hairs, pedicel ~0.5 mm.
5, lanceolate, posterior erect, usually triangular, other recurved, lanceolate, green to reddish brown. Hypanthium 6-12 mm.
Petals white, cream, pink, posterior ligulate with rounded apices, with feather-like markings, 8.5-15x2-4.2 mm, anterior spathulate, slightly narrower.
5 fertile, 2.5-5 mm, posterior one 2-4 mm.
P. proliferum belongs to the group of hoareas with highly variable leaf shapes, which is reflected in the large number of synonims. It also occupies a range of different habitats, it likes mountain slopes as well as flats - it is particularly frequent in the Cederberg range. Given the similarities with P. longifolium, particulary in relation to the variability of leaves, the two species can be confused. However, the length of petals in P. proliferum is <15 mm, and in P. longifolium, it is >14 mm and in addition, the petals are undulate.
ciliatum (Cav.) Jacq.
? heterophyllum (Andr.) Loud.
laciniatum E. Mey.
leeanum (Sweet) G. Don
limbatum E. Mey.
prolificum (Eckl. & Zeyh.) Steud.
purpurascens (Andr.) Pers.
setigerum (Andr.) Steud.
tysonii (Cav.) Szyszyl.
E. M. Marais, Taxonomic Studies in Pelargonium, Section Hoarea (Geraniaceae), PhD Thesis, University of Stellenbosch, 1994.
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