Shrub, sometimes climber, whether or not epiphytic, 0.6-1.5(-5)m. Branchlets subterete, greyish to dark brown-corticate, tips somewhat flattened or angular, brownish, completely glabrous. Leaves ovate to oblong-ovate, apex ± subcaudate-acuminate, acute, the terminal gland small, base rounded to subcordate, stiff, leathery and fleshy, dark green, glabrous and somewhat above, less shining or dull and subdensely to laxly blackish punctate beneath, entire, margin narrowly cartilaginous, flat, (7-)8-18(-20) by (3.5-)4-7(-10.5) cm, 5-plinerved from or from a little above the base, midrib impressed above, strongly raised beneath, principal nerves curved-ascendent to the top, the outer pair less visible than the inner one, which is more impressed above and raised beneath, other nerves or transverse veins several from the upper part of the midrib, ± transverse to the principal nerves, mostly rather faint; petiole thick, grooved, (6-)8—12 by 1.5-3 mm. Flowers (3-)4-6 per fascicle, mostly in the defoliate axils. Pedicels rather slender, subdensely clothed with short, fine, yellowish hairs, and laxly so with thick, rather short glandular ones, (4-)5-7 mm, basal bracts small. Bracteoles broad-ovate, subacute, dorsally short-hairy, glandular-fimbriate, c. 1.5 mm. Calyx c. 3 mm, greenish, glabrous or very laxly muriculate dorsally, lobes ovate, subacute, glandular-fimbriate, 1.5 mm. Corolla urceolate, 5 mm, white to pink, waxy, glabrous, lobes reflexed, 1 mm. Filaments linear, glabrous, 2.5 mm; anthers ovate-oblong, granular, c. 1.8 mm, the very short and broad tubules included. Ovary glabrous; style 4 mm. Fruit finally purple-black, c. 4 mm ø.
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