stem erect, quadrangular, pubescent; leaves opposite, petiolate, ovate, acuminate, minutely serrulate, subcordate at the base, appressed-villous above, subtomentose and paler beneath; panicle terminal, scabrous; calyx covered with white, fascicled, setose hairs; tube oblong, in fruit urceolate, lobes lanceolate, pectinate-ciliate, deciduous; appendages linear, palmate-ciliate; stamens 10, unequal, the anthers of the longer ones equalling the petals. Stem densely covered with fulvous, fascicled hairs. Leaves 4 inches long, 1 1/2 inch broad, 5-nerved, subsilky on the upper, greyish on the under-surface; petiole 6–8 lines long. Panicle about 4 inches long, the primary branches opposite or ternate. Bracts acuminate, puberulous, as long as the peduncles. Pedicels 1–2 lines long. Petals rotundate, purple, 1 inch long. Filaments glabrous, connectivum biauriculate at the base; anthers 1-porose. Fruit-bearing calyx 5 lines long. Capsule roundish, silky at the apex, 5-celled.
