Pelargonium triandrum E.M.Marais

A deciduous geophyte with a small regularly shaped subterranean tuber, 100-200 mm tall when in flower. Tuber: a turnip-shaped or elongated, sometimes moniliform root with a short flattened stem, covered with flaking dark brown periderms, 20-60 mm long and 10-15 mm in diameter. Leaves radical, hysteranthous, rosulate, simple, green, petiolate; lamina broadly ovate, apex rounded or obtuse, base cuneate, truncate or cordate, margin irregularly crenate, 15-50 x 15-65 mm, adaxially and abaxially densely pilose and densely covered with glandular hairs; petiole 14-80 mm long and 1-4 mm in diameter, prostrate, densely pilose interspersed with long and short glandular hairs; stipules subulate, adnate to petioles for half their length, 10-14 x 1-2 mm, ciliate, apices laterally curved. Inflorescence: scape 20-90 mm long, 2-4 mm in diameter, branched, bearing 2-4(-7) pseudo-umbellets with 7-26(-30) flowers each; peduncles 30-90 mm long, 1.5-2 mm in diameter, covered with glandular hairs interspersed with patent non-glandular hairs; bracts lanceolate, 5-7 x 1-2 mm, abaxially hirsute; flower buds, flowers and fruits erect. Pedicel ±. 0.5 mm long. Hypanthium 23-32 mm long, straw-coloured to pale reddish brown, indumentum as on peduncle. Sepals 5, lanceolate, apices acute, 7-1 l x l-3 mm, posterior one erect, others patent, pale reddish brown with margins white, indumentum abaxially as on peduncle. Petals 4, cream-coloured to pale yellow, patent during anthesis; posterior two with wine-red feather-like markings, ligulate to unguiculate-spathulate, bases cuneate, apices emarginate, 19-25 x 3-5.5 mm; anterior two narrowly spathulate, bases attenuate, apices rounded, 9.5-17 x 2-3 mm. Stamens 8, basally connate, staminal column 1.5-3 mm long, white, smooth; perfect stamens 3, protruding from the flower, curved upwards during anthesis, lateral two 11-21.5 mm long, anterior one 20-32 mm long, white; staminodes 2-5 mm long; anthers dark pink, 1.5-2 mm long, pollen orange. Gynoecium: lengthens conspicuously during anthesis; ovary superior, oblong-conical, 4-5-lobed, 3-4.5 mm long, densely sericeous; style filiform, 3.5-10 mm long, white to pale pink; stigma with 4-5 branches, 0.3-0.5 mm long, adaxially dark pink. Fruit: a schizocarp consisting of 4-5 mericarps, bases of mericarps 4 mm long, without glandular hairs, papillate at distal end, tails 23-32 mm long.