Young branchlets stout, blackish, subangular owing to compression of the internodes, finely lenticellate towards the base. Branches very stout, about 3 lin. in diam. 6 in. below the apex, nodose, brownish, very coarsely and densely lenticellate, lenticels rusty-brown; internodes about 3 lin. long. Leaves alternate, oblanceolate, straight or subfalcate, obtuse or rounded at the apex, often apiculate, long-cuneate into the base, 1 1/2–3 in. long, 5–12 lin. broad, rigidly coriaceous, glabrous, dull, very finely wrinkled on both surfaces in a dried state; lateral nerves 2–3 on each side, very oblique, very slightly raised on both surfaces; petiole 3–5 lin. long. Umbels axillary, fascicled, 3–6-flowered; peduncle stout, 1–1 1/2 lin. long, glabrous; pedicels 3/4 lin. long, glabrous; bract ovate-cupular, dorsal margin 3/4– 7/8 lin. long, truncate, umbonate, umbo much flattened, ventral margin 1/4 lin. long. Receptacle and calyx together narrowly campanulate, 2 1/8 lin. long. Calyx ascending, 7/8 lin. long, irregularly split. Corolla 1 1/2 in. long in bud or more, glabrous outside, madder-red, constricted part of the tube yellow, upper part of the lobes violet (Goetze); basal swelling subglobose; lobes linear, subacute, about 4 lin. long, nearly 1/2 lin. broad, hooked on the inner surface at the apex. Filaments tapering upwards, 2 1/2 lin. long, tooth 1/4 lin. long; anthers oblong-linear, rounded-subtruncate, 1 1/4 lin. long; connective slightly exceeding the cells. Disc deeply 5-lobed, 1/5 lin. high, lobes deltoid. Style skittle-shaped above, thickened part 3–3 1/4 lin. long, neck 1 1/4 lin. long, upper half thickened into the base of the stigma; stigma depressed-globose, concave at the apex, 1/3– 3/8 lin. in diam.