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Stem robust, up to 60 cm high, mostly glabrous or glabrescent and lenticellate, but sparsely crispate-pubescent on the young parts. Leaves broadly elliptic to broadly ovate, slightly oblique, 11-24 by 5.5-13 cm, cuneate-attenuate at base, acute and very shortly acuminate or cuspidate at apex, obtusely sinuate-denticulate or undulate-serrate, glabrous above, shortly and sparsely hispidulous-pubescent below, more densely so on the nerves; nerves 3-4 pairs; petiole 2.5-5 cm, shortly hispi-dulous or glabrescent. Inflorescences robust, shortly scorpioid, arising singly (? rarely 2 together) from 1-5 upper axils, 3-6 cm long, rather densely and shortly crispate-pubescent; peduncle 5-10 mm. Lower bracts oblong-ovate, up to 2 by 1 cm, membranous, minutely hispidulous, upper ones gradually diminishing in size. Pedicels 0-2 mm long. Flowers large, c. 2 cm long at anthesis, but rapidly elongating to c. 3 cm in fruit. Calyx-tube narrowly fusiform-lanceolate, c. 10 by 2-3 mm, attenuate above, shortly pubescent. Sepals large, membranous, oblong-ellptic, c. 13-15 by 3-8 mm, rounded-obtuse, erose-denticulate, sparsely to densely crispate-pubescent outside. Corolla 6-7 mm long, gamopetalous to c. ½, segments ± lanceolate or narrowly triangular, c. 3 mm wide at base, apex acute, spreading but not usually strongly reflexed, ± fleshy. Stamens about 3 mm long; anthers oblong, apparently often abortive. Style thick, 2-3 mm; stigma oblong, pentagonal, 2 mm long. Fruit ellpsoid, 15-20 by 3-5 mm, +-crispate-pubescent.
