Shrub 0.25-c. 1.4 m tall, straggling to spreading below, with branches rigid above, the whole plant glabrous. Stems pale yellowish to reddish, shallowly 4-lined but not ancipitous when young, soon terete; internodes shorter than leaves; cortex exfoliating in strips; bark straw-brown, finely striate. Leaves sessile; lamina (20-)30-60 x (6-)10-20 mm, narrowly elliptic to elliptic-oblanceolate, some- what paler beneath, chartaceous, not glaucous, plane, spreading; apex acute or subapiculate to obtuse or rounded, margin entire or undulate to serrulate, with prominent but sessile round- or flat- topped black glands or proximally or rarely wholly entire with glands immersed, base narrowly cuneate to attenuate; venation: (2)3 pairs of laterals curved-ascending from lower 0.35-0.4 of midrib, tertiary reticulation obscure; laminar glands pale, dense, unequal, prominent; marginal and/or intramarginal glands black, dense. Inflorescence c. 10-45-flowered from up to 3 nodes, curved-corymbiform to hemispherical, dense; pedicels 3-4.5 mm; bracteoles (and bracts at uppermost 2 nodes) reduced, narrowly elliptic, with prominent marginal black glands. Flowers c. 15-20 mm in diam.; buds narrowly ellipsoid, acute. Sepals 4.5-7 x 1.5-2(-2.5) mm, slightly unequal, free, elliptic-oblong to elliptic or (the smaller) lanceolate-elliptic, acute, with sessile marginal glands or distally glandular-denticulate; veins 5, branching; laminar glands pale or a few black, linear or interrupted; marginal glands black, flat-topped, prominent, dense. Petals rather pale dull yellow, tinged or lined bright red dorsally, 10-14 x 3-4 mm, c. 2 x sepals, narrowly elliptic-oblong, acute (i.e. apiculus acute, apical); laminar glands pale, striiform to punctiform; marginal glands all black or some pale, all prominent or some immersed distally. Stamens c. 25-30, longest 7-9 mm, c. 0.7 x petals; anther gland amber. Ovary 2.5-3 x 1.5 mm, ellipsoid; styles 5-6 mm, 2 x ovary, spreading-incurved. Capsule 4-5.5 x 2.5-4 mm, ovoid, shorter than sepals, enclosed by petals twisting together. Seeds pale yellow-brown, 0.5-0.6 mm long; testa very shallowly linear-foveolate, almost smooth.