Shrub, 1.5-3 m. Branches terete, setose. Branchlets densely and exclusively clothed with spreading, dark, rufous-blackish bristles (1.5-2 mm), leaved towards the tips. Leaves ovate or elliptic-ovate (inferior ones sometimes elliptic), uppermost ones mostly gradually subcaudate-acuminate, lower ones short-acuminate at apex, the terminal gland slightly thickened, base rounded or rarely broadly cuneate, subcoriaceous, young ones apparently reddish, densely setulose on both faces initially, glabrous and shining above at maturity, rather densely and more persistently and patently rufous-setulose (0.7-1.5 mm) beneath, finally blackish punctulate there, margin slightly revolute, minutely crenulate, the teeth caducously setulose-ciliate, 2.5-4(-5.5) by (1.2-)1.4-2(-2.5) cm, midrib impressed above, raised beneath, one pair of basal nerves curved-ascending along the margin to the top of the lamina, slightly impressed above or as obscure as beneath, other higher pinnate nerves rather inconspicuous; petiole densely patent-setose, 2.5-4 by 1-1.5 mm. Flowers axillary, solitary or rarely in twos. Pedicels rather slender, ± densely crisped-rufous-pilose, 2-3 mm at anthesis, up to 5 mm in fruit. Bracteoles ovate-acuminate, glabrous dorsally, 1.2 mm. Calyx campanulate, glabrous or set with sparse thickish hairs, c. 3 mm, 5-lobed to nearly its base, lobes ovate, acute, shortly glandular-fimbriate as are the bracteoles. Corolla subcylindric-campanulate, greenish, somewhat glaucous, becoming blackish when dry, glabrous, c. 4 mm, shortly 5-lobed. Filaments S-curved, linear, glabrous, c. 2 mm; anthers ovate-oblong, granular, 2 mm including the slender short tubules. Ovary with rather sparse yellowish hairs on top; style 3-3.5 mm. Fruit bluish, finally blackish, c. 4 mm ø, glabrous on top of the capsule.