|Pelargonium angustipetalum E. M. Marais|
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E. M. Marais, Taxonomic Studies in Pelargonium, Section Hoarea (Geraniaceae), PhD Thesis, University of Stellenbosch, 1994, p. 141.
Deciduous geophyte, 80-240 mm tall when in flower. Tuber turnip-shaped or elongated root.
Green, rosulate, petiolate, lamina palmately compound with 3-5 pinnae, pinnae 50-80 mm long, sometimes deeply incised, segments 20-40 mm long and 2-7 mm wide, apices acute, hirsute with appressed stiff hairs interspersed with very short glandular hairs, petiole 80-260 mm long, rigid, erect. Stipules 10-15 x 2-3 mm, adnate to petioles for half their length.
Scape, bearing 2-7 pseudo-umbellets, each 4-12-flowered. Pedicel ca. 0.5 mm.
Credit: ©Florent Grenier, reproduced with permission of the author.
5, lanceolate, apices acuminate, 6-8 x 1.5-3.0 mm, posterior one erect, others patent, green with margins white. Hypanthium 21-35 mm, pale green to reddish brown, hirsute with appressed stiff hairs interspersed with short glandular hairs.
5, cream-colured to pale yellow, claws forming a sheath, apices patent or recurved, posterior two ligulate with pink feather-like markings on the claws, bases cuneate, apices rounded, 21-26 x 2-3 mm, length/width ratio 7.5-9, anterior three ligulate, bases attenuate, apices rounded, 19-23 x 1-2 mm.
5 fertile, concealed in the floral sheath, posterior one 1.5-2.0 mm, lateral two 2.5-4.0 mm, anterior two 5-6 mm, pollen orange.
A conservation enclosure somewhere near Steinkopf guards one of the densest known populations of P. angustipetalum, as this taxon is so heavily grazed that even immediately outside the enclosure not a single plant can be found. They mostly hide beneath shrubs in karooid vegetation, in areas with 100-200 mm rainfall, and flower in November to December.
E. M. Marais, Taxonomic Studies in Pelargonium, Section Hoarea (Geraniaceae), PhD Thesis, University of Stellenbosch, 1994.
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