stem simple, 1–2 ft. high, stout, more or less scabrous along 2 broad lines, sometimes nearly smooth; leaves spreading; petiole 2–4 lin. long; blade of the middle and lower leaves 1 1/2–3 1/4 in. long, 2/3–1 1/2 in. broad, oblong or lanceolate, acute, or obtuse and apiculate, cuneate or rounded at the base, scabrous on the margins and thinly so on both sides or nearly or quite smooth above; umbels sessile or the lower pedunculate, lateral at the nodes, 5–6- (rarely 7–10-) flowered; peduncle 0–10 lin. long, scabrous on one side; bracts 2 1/2–4 lin. long, very deciduous, linear, acute; pedicels 2/3–1 in. long, more or less scabrous; sepals 3 1/2–4 1/2 lin. long, 1 3/4–2 lin. broad, ovate-lanceolate, somewhat acuminate, pubescent, ciliate; corolla-lobes about 7 lin. long, 3 1/2–4 1/2 lin. broad, reflexed, oblong or ovate-oblong, obtusely pointed, revolute along the margins, twisted, glabrous on both sides or thinly pubescent on the back, often slightly rugulose (perhaps from shrinkage in drying) on the inner face; corona-lobes very variable, seated at the base of the staminal column, 1 1/4–3 1/2 lin. long, usually consisting of 2 contiguous erect fleshy keels, varying from less than half as high to as high as the anthers, in side view broader than high or higher than broad, very obtuse or obliquely acute, arising from an ovate or lanceolate recurved-spreading base, which is more or less concave beneath and sometimes almost pointless, sometimes with a short recurving point, sometimes with a slender linear upcurved point 2–3 lin. long, with a small tooth on each side near the middle, and sometimes the keels are absent and the lobes are small, spreading, scarcely projecting beyond the anther-wings, ovate or oblong-ovate, recurved at the shortly pointed apex, fleshy, with a cut-like groove along the upper face and apparently somewhat rib-striate; staminal column 2 1/2 lin. long; anther-appendages ovate, acute, loosely inflexed over and concealing the style-apex, which sometimes (always?) has a central cavity; follicles not seen. null