stem 1 1/2–3 ft. high, simple, hairy along 3 lines with white spreading hairs, with internodes 1/2–1 in. long at the middle and upper part, those at the base longer; leaves 3 in a whorl, ascending or slightly spreading, shortly petiolate, 1–1 1/3 in. long, 2–6 lin. broad at the base, oblong or linear-oblong, acute, truncate, subhastate or subcordate at the base, pubescent along the revolute margins and on the midrib beneath, otherwise glabrous; umbels several to a stem, sometimes more than 1 from the same node, racemose along the terminal part of the stem, pedunculate, or the uppermost nearly or quite sessile, 3–6-flowered; peduncles 0–5 lin. long, pubescent or subtomentose; bracts 1 1/2–4 lin. long, filiform, linear or spathulate, pubescent; pedicels 3–4 lin. long, pubescent or subtomentose; sepals 1 1/2–2 lin. long, 3/4 lin. broad, lanceolate, acute, pubescent; buds globose, with an apical depression; corolla-lobes suberect or campanulately spreading, 3–3 1/4 lin. long, 2 lin. broad, ovate, acute, with reflexed (perhaps replicate) and somewhat wavy margins, glabrous on both sides, apparently olive-brown; corona-lobes obcordate, with 2 parallel keels, 2 short transverse keels near the top and a long subterminal appendage on their inner face; obcordate part 1 lin. long, nearly 1 1/4 lin. broad, about half as long as the staminal column; appendage 1 1/3–1 1/2 lin. long, linear-cuneate, bifid at the apex, incurved over the 1 2/3–1 3/4 lin. long staminal column; anther-wings with a very prominent and rather acute angle at the middle; anther-appendages very broadly cordate-ovate, entirely inflexed over the top of the depressed-truncate style-apex; pollen-masses dark orange, very much compressed or somewhat wing-like on the outer side near the caudicle, and this wing-like part is often more or less folded outwards. null