Asclepias monticola N.E.Br.

Delicate, perennial, geophytic herb, procumbent, 50-130 mm long. Stems 3-5 radiating from tuber. Leaves spreading, ovate to lanceolate, 16.0-32.3 x 6.0-11.4 mm, base subcordate, apex acute; petioles 2.7-5.4 mm long. Inflorescences terminal, subglobose, 6-12-flowered; peduncle 31-34 mm long. Flowers green, tinted purple or mauve. Corolla reflexed; lobes elliptic-oblong, 4.0-4.7 x 1.9-2.1 mm; staminal column stipitate. Corona whitish or yellow, subquadrate, upper proximal edge extended into short falcate, subulate appendages projecting onto edge of style-stigma-head, upper margin obliquely ending in a rounded upper distal end. Anther transversely oblong, 0.35-0.50 x 0.81.0 mm, upper edge emarginate, incumbent on style-stigma-head. Flowering time Jan.?