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Information Roots fleshy, narrowly fusiform, fasciculate. Stems about 1 ft. long, with two pubescent lines. Leaves 3 1/2–6 in. long, 1/2–1 lin. broad, linear, acute, narrowed into a short petiole, glabrous. Umbels lateral and terminal, pedunculate, bearing upwards of 20 small flowers; bracts 2 lin. long, linear, acute, glabrous; peduncles 5–7 lin. long, puberulous; pedicels 3–4 lin. long, tapering from the base, puberulous. Sepals 3/4 lin. long, lanceolate, acute, channelled, closely reflexed on the pedicel, glabrous. Corolla closely reflexed on the sepals, “whitish-lilac” (Welwitsch); lobes 1 3/4 lin. long, 1/2 lin. broad, oblong, acute, concave, glabrous. coronal-lobes minute, about 1/3 lin. long, and nearly as broad, roundish-ovate, very obtuse or subtruncate, slightly channelled, adnate, abruptly terminating in the hollows under the anthers, from which they have the appearance of protruding downwards, with their tips resting on the corolla; a small erect tooth between each pair of lobes and connecting them at their base. Staminal-column 1 1/4 lin. long; anther appendages broadly ovate or suborbicular, inflexed over the apex of the style. Follicles 5–6 in. long, 1/4 in. thick, narrowly fusiform, equally tapering into a long stipes and beak.

Information Calyx 5-partite. Corolla 5-lobed nearly to the base, campanulate, subrotate or reflexed; lobes overlapping to the left or rarely subvalvate in the bud. Corona-lobes 5, arising from the staminal-column and opposite the anthers, variously shaped, very fleshy, sometimes as thick as broad or laterally compressed, with or without keels or teeth on their inner face, sometimes dorsally flattened, but then comparatively thick and entirely without keels or with only 1 rather stout longitudinal median keel on their inner face, solid, never cucullate or complicate, nor produced into a terminal horn, sometimes with 5 minute teeth or rudimentary lobes alternating with them at their base. Anthers terminated by a membranous appendage. Pollen masses pendulous, solitary in each anther-cell, attached to the pollen-carriers in pairs by elongated caudicles. Style usually shorter than the anther-tips, rarely exserted beyond them. Follicles variable in shape, smooth or softly echinate. Seeds crowned with a tuft of hairs. Perennial herbs with milky juice and tuberous rootstock or roots. Stems erect, rarely diffuse, usually simple and often solitary, but sometimes much branched at the base. Leaves opposite. Umbels sessile or pedunculate, solitary and terminal, or most of them lateral between the bases of the petioles, and one or two terminal.

Information Stem 12–18 in. high, with two pubescent lines in the upper part, glabrous below. Leaves sessile or nearly so, 3 1/2–5 in. long, 1–1 1/2 lin. broad, linear, acute, glabrous. Umbels lateral and terminal, the lower pedunculate, the upper sessile or subsessile, hemispherical or subglobose, more than 20-flowered; flowers small; peduncles 1 1/2–5 lin. long, pubescent or with hairy lines like the stem; bracts 2 lin. long, attenuate, acute, subglabrous; pedicels 3–4 lin. long, tapering from the base, puberulous. Sepals reflexed, 1 lin. long, lanceolate acute, concave, glabrous. Corolla closely reflexed; lobes 2 lin. long, 1/2 lin. broad, oblong, acute, glabrous. Coronal-lobes minute, 1/2 lin. long, resembling a small tongue protruding from the hollow at the base of the anthers and directed downwards, narrowly oblong, obtuse, channelled down the face, adnate to the staminal-column, quite free from each other, with no alternating tooth between them. Staminal-column 1/10 in. long; anther-appendages ovate, subacute, inflexed over the apex of the style.