Stem 1–2 ft. high, stout, erect, thinly pubescent with curved hairs. Leaves ascending or incurved-ascending; petiole 1–3 lin. long; blade 2 1/3–9 in. long, 1/4–1 in. broad at the base, gradually tapering from the truncate or subhastate base to an acuminate point, more or less scabrid on both sides; margins slightly thickened, not revolute, scabrid. Umbels pedunculate, several-flowered, lateral and terminal or somewhat clustered at the top of the stem; peduncles 1/6– 3/4 in. long, pubescent; pedicels 4–7 lin. long, pubescent; bracts 3–5 lin. long, linear-lanceolate, acuminate, pubescent. Sepals 3–3 1/2 lin. long, 1–1 1/2 lin. broad, erect, flat or with revolute margins at the base, lanceolate, acute, pubescent, “very pale yellow” (Welwitsch). Corolla-lobes 5 lin. long, 3 lin. broad, ovate-oblong, acute, concave, suberect, with recurved tips, densely bearded with white hairs on the apical part within, otherwise glabrous, “dull violet outside, whitish within” (Welwitsch). Coronal-lobes arising at the base of the staminal-column, 1 1/2–2 lin. long and the same in breadth, erect, fleshy, broadly ovate or subcordate-ovate, subobtuse, flattened, with recurved margins at the base, keeled on the face, “violet” (Welwitsch). Anthers erect, oblong, their appendages ovate, acute, erect, applied to the sides of the apical part of the style; this last is 1 1/4–1 1/2 lin. long, stout, very obtuse or slightly dilated at the top, produced beyond the anther appendages, “violet” (Welwitsch). Follicles 2–2 1/2 in. long, 6–7 1/2 lin. thick, lanceolate, acute, setose and pubescent.