Shrub up to 1.2 m tall; stems erect, with short internodes, densely tomentose.. Leaves opposite, shortly petiolate or subsessile, ovate, 3-12 cm long, 1.3-5 cm wide, base cuneate or rounded, margins serrulate with callus-tipped teeth, apex acute or shortly acuminate, somewhat bullate, sparsely finely pubescent above, densely white-tomentose beneath; petiole to 1 cm long, those of opposite leaves connate.. Capitula in dense terminal compound corymbiform cymes; stalks of individual capitula 2-7 mm long, densely pubescent with fine spreading hairs; involucres campanulate, 5-7 mm long; phyllaries 4-seriate, ovate, shortly pungent, white-tomentose in upper part, the inner narrowly ovate, pubescent below the apex, fimbriate-pectinate and purplish on the membranous margins, 5-7 mm long.. Florets 30-35; corolla purple, 5.5-7 mm long, lobes 2-3 mm long.. Achenes 1.7-2 mm long, 5-7-ribbed, glabrous, glandular between the ribs; pappus of few caducous bristles 1.5-2.5 mm long.
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