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Leaves in whorls of 3–4, or opposite above; blades (1.7)3–8.5 × (0.6)1.2–4.8(6.7) cm, broadly to narrowly elliptic or ovate to ± obovate, acute to obtuse at the apex or very shortly acuminate, cuneate at the base, not markedly discolorous, but usually paler beneath and often drying with a reticulate darker pattern, glabrous to shortly densely pubescent; lowermost leaves often very reduced, 10 × 6 mm; petioles obsolete or very short; stipules about 2.5–3.5(4.5) mm long, the subulate cusp (1.5)2–3 mm long from a broad base.
Corolla apiculate and usually tailed in bud; white to greenish-yellow or yellow outside, creamy-green inside, glabrous; tube 5–6 mm long with ring of deflexed hairs inside; lobes 4.5–7 × 1.5–2.5(3.5) mm, oblong-triangular, appendaged, papillate inside.
Very variable herb or suffrutex (10)22–45(120) cm tall, from a thick or fairly slender usually horizontal woody root stock; stems several, usually erect, branched or unbranched, yellowish, ± quadrate, grooved, glabrous to densely shortly pubescent.
Calyx oblong-ovoid or obconic, 2.5–4 mm long including the narrow truncate or almost truncate limb; teeth if present minute, glabrous or shortly pubescent.
A shrub. It has woody stems. It grows 20-45 cm tall. Several stems grow from the woody rootstock. The fruit are black and 1 cm across.
Inflorescences (1)2-but mostly 3–7-flowered; peduncles (2)5–18(32) mm long; pedicels 2–14 mm long, glabrous or shortly pubescent.
Fruits dark bluish-green turning black when dry, about 10 mm in diameter, usually with 3 pyrenes.
Anthers half-exserted with a papillate apical appendage, purple, brown or orange.
Pollen presenter green, 1–1.5 mm long, coroniform or truncate-obconic.
Style green or white, thickened below, 7–8 mm long.
Flowers fragrant.
