Pelargonium rubiginosum E. M. Marais
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Campylia
Chorisma
Ciconium
Cortusina
Glaucophyllum
Hoarea
Isopetalum
Jenkinsonia
Ligularia
Myrrhidium
Otidia
Pelargonium
Peristera
Polyactium
Reniformia
Subsucculentia


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Taxonom. Stud. in Pelargonium, sect. Hoarea (Geraniaceae), Ph.D. Thesis, Univ. of Stellenbosch, 1994, p. 319.
Section Hoarea

Habit
Geophyte with a small regularly shaped subterranean tuber. Stem short, flattened, covered with flaking dark brown periderms.


Leaves
Erecto-patent, lamina broadly ovate, base cuneate, apex rounded, 15-60 x 10-45 mm, pinnately compound, pinnatilobed to bipinnatisect, densely pilose with white patent hairs and glandular hairs interspersed, segments linear, 5-10 mm long. Petiole 10-60 mm, stipules subulate, 3-7 x 1 mm, adnate to petiole for 1/3 of their length.



Inflorescence
Scape, bearing 2-5 pseudo-umbellets, each 10-30-flowered. Peduncles wine red to brown red, 30-170 mm long. Pedicel cca. 0.5 mm.


Sepals
5, lanceolate, apices acute, 4.5-6 x 1-2 mm, reflexed. Hypanthium 14-32 mm, wine red to brown red.

Petals
5, white, cream-coloured, or yellow with red or crimson markings in the centre, patent during anthesis, posterior unguiculate-spathulate to unguiculate-obcordate, bases cuneate, apices rounded to emarginate 9-16 x 2.5-4.5 mm, anterior three spathulate, apices rounded 5.5-13 x 1.5-4 mm.

Stamens
2 fertile (anterior position), white, 5-9 mm, protruding from the flower.

Distribution


Habitat

Southern hillside of Skimmelberg close to Eksteenfontein in the Richtersveld with the remarkable Aloe ramosissima in the foreground, a local endemic. This was in August 2003, an incredibly dry winter and even the poor aloe is leafless.

Literature
E. M. Marais, Taxonomic Studies in Pelargonium, Section Hoarea (Geraniaceae), PhD Thesis, University of Stellenbosch, 1994.

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