Pelargonium curviandrum E.M.Marais

A deciduous geophyte with a small regularly shaped subterranean tuber, 100-300 mm tall when in flower. Tuber, a turnip-shaped or elongated root with a short flattened stem, covered with flaking dark brown periderms, 15-50 mm long and 12-25 mm in diameter. Leaves radical, hysteranthous, rosulate, simple, green, petiolate; lamina ovate, apex obtuse, base cuneate to truncate, margin crenate, 25-80 x 20-60 mm, adaxially covered with long glandular hairs interspersed with very long soft patent non-glandular hairs, abaxially velutinous interspersed with long glandular hairs; petiole 10-55 mm long and 2-4 mm in diameter, prostrate, covered with short glandular hairs and long soft patent non-glandular hairs; stipules subulate, adnate to petioles for half of their length, 4-8 x 1-2 mm, ciliate, apices laterally curved. Inflorescence: scape 30-200 mm long, 1-3 mm in diameter, branched, bearing 2-4(-6) pseudo-umbellets with 7-23(-29) flowers each; peduncles 50-120 mm long, 1-2 mm in diameter, covered with short glandular hairs interspersed with long soft patent non-glandular hairs; bracts narrowly triangular, 4-5 x 1-1.5 mm, hirsute; flower buds, flowers and fruits erect. Pedicel ±0.5 mm long. Hypanthium 18-30 mm long, reddish brown, sparsely covered with short glandular hairs and non-glandular hairs. Sepals 5, lanceolate, apices acute, 7-12 x 1.5-3 mm, patent, reddish brown with white margins, indumentum abaxially as on peduncle. Petals 5, white to cream-coloured, patent during anthesis; posterior two with wine-red feather-like markings, ligulate, bases cuneate, apices rounded, 17-23 x 2.5-3 mm; anterior three narrowly spathulate, bases attenuate, apices rounded, 12-15 x 2.5-3 mm. Stamens 10, basally connate, staminal column 1.5-3.5 mm long, white, smooth; perfect stamens 4, lateral two 11-18 mm long, anterior two 13-20 mm long, protruding from the flower, curved upwards during anthesis, white; staminodes 2.5-6 mm long; anthers wine-red, 2-2.5 mm long, pollen orange. Gynoecium lengthens conspicuously during anthesis; ovary superior, oblong-conical, 5-lobed, 3.5-5.5 mm long, densely sericeous; style filiform, 6-12 mm long, white; stigma with 5 branches, 0.5-1 mm long, adaxially pink. Fruit: a schizocarp consisting of 5 mericarps, bases of mericarps 5-6 mm long, with glandular hairs, tails 22-25 mm long.