Perennial herb, 150-300 mm tall. Leaves oblong, lanceolate or ovate-lanceolate. Corolla lobes ascending-spreading, pubescent outside, pubescent to densely white-hairy at tips and along margins, glabrous inside. Corona lobes with compressed erect process or horn within cavity. Flowers green or sometimes dark purple-brown; corona white with violet spot on back near apex and violet at base.
A herb.