Plants slender, to 4 dm, persistent leaf bases few, flexible, lanceolate, ciliate, glabrous to hispid. Leaves to 12 cm; blade green or light green abaxially, dark green adaxially, with 2-3 pairs of primary lateral lobes; surfaces glabrate to densely pilose, trichomes light brown. Inflorescences: scapes glabrate to hispid with appressed and spreading trichomes. Flowers to 5 cm diam.; petals yellow or very rarely pink; anthers yellow; stigmas 4-6, disc conic-umbonate. Capsules clavate, to 2.5 cm, sparsely to sometimes densely strigose. 2 n = 28, 70 (as P . radicatum Rottb. s . l .).
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