Epiphytic or rarely terrestrial shrub, 0.6-1(-1.5) m, often with thick roots or subglobular-swollen base. Branches terete, striate, dark. Branchlets slender, brownish, exclusively densely patently papillose-puberulous. Leaves dense, linear, apex obtuse, the terminal gland minute, base attenuate into the very short (1 mm) petiole, subcoriaceous, brownish and shining above when dry, slightly paler beneath, entire, (3-)4.5-5.5(-6) cm by 1.5-2(-2.5) mm, midrib slightly impressed the entire length, somewhat prominent beneath, other nerves not visible. Flowers axillary, solitary or rarely in twos. Pedicels slender, glabrous or with some scattered stalked glands, 4-6 mm, basal bracts few, ovate-acute, nearly 1 mm. Bracteoles rounded to broad-ovate, ciliolate, 1 mm. Calyx green, 3-4 mm, glabrous, lobes ovate-triangular, subacute, glandular-fimbriate below, densely fimbriate by fine hairs towards the apex, 2-3 mm. Corolla narrow-urceolate, 5-6 by 3-4 mm, glabrous, white or greenish, or cream with green tinge, lobes triangular-acuminate, subacute, finally reflexed, 2 mm. Filaments linear, a little dilated above the base, glabrous, 3 mm; anther-cells oblong, very granular, 1.5 mm; tubules narrow, 1.5 mm. Ovary laxly clothed with longish brownish hairs; style c. 4 mm. Fruit c. 6 mm ø, blackish purple; fruit pedicel 8-10 mm. Seeds irregularly triangular, flat, nearly 1 mm.
In mossy forest, on open grassy slope on landslide, even with mosses on stones in rivers, locally frequent but seldom seen in flower, 1065-2285 m. Fl. fr. Febr.-Aug.
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