A small shrub; branches woody, obscurely 4-gonous, deeply furrowed when dry; nodes much swollen, upper bristly. Leaves (the few remaining on the specimen) 1–1 1/2 in., very rigidly coriaceous, shortly petioled, elliptic-lanceolate, subacute, opaque, scabrid with short bristles, paler beneath; nerves 3–5, very stout below; petioles short, stout, scabrid. Flowers about 1/2 in. in diameter, purple, crowded in short peduncled cymes in the upper axils, pedicels short, stout; bracts 0, or very early deciduous. Calyx-tube 1/3 in., very coriaceous, cylindric-campanulate, covered with scattered flattened bristles which pass into short setose appressed simple or 2-fid scales below the mouth; lobes 5, broadly oblong, obtuse, apiculate, ciliate, deciduous. Petals (young) orbicular, glabrous. Anthers of large stamens 1/3 in., as long as their connectives, appendage shortly produced in front, 2-lobed; connective of smaller anthers short, 2-auricled at the base. Ovary 10-ribbed, bristly at the very tip only; style stout, curved, stigma truncate.