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2n = 42

Subshrub, 5–15(–20) cm tall. Old stems brown or grey. Branches prostrate to ascending. Branchlets brown or purplish. Vegetative internodes 1–5 mm long. Stem pubescence uniform, eglandular pubescent (retrorse, appressed). Leaves decussate or subdistichous, erecto-patent. Lamina oblanceolate or obovate or oblong or elliptic or spathulate or orbicular (rarely), (2–)4–10 × (1–)2– 6(–7) mm. Adaxial surface of leaves green or bronze green, glossy. Abaxial surface of leaves green or bronze green or purple, glossy (often wrinkled and black when dry). Leaf hairs sparse to scattered or absent, along margins and on petiole, uniseriate glandular with globular head. Apex subacute or obtuse or rounded. Base cuneate. Margin minutely papillate, glandular-ciliate, and ciliate (rarely), rarely entire or crenate or serrate or lobed. Marginal teeth or lobes in (0–)1–2(–3) pairs. Petiole 1(–2) mm long. Inflorescence a solitary bibracteolate flower or a pair of flowers (rarely 3), 1.5–2.5 cm long at fruiting. Indumentum of peduncle, rachis, and pedicels moderately dense to very dense. Eglandular hairs of inflorescence deflexed (glandular hairs patent), white. Peduncle 0.2–1 cm long, eglandular-pubescent and glandular-pubescent; hairs all around peduncle. Rachis 2–5 cm long, eglandular-pubescent and glandular- pubescent, hairs all around rachis. Bracts alternate (spiralled) or paired and opposite, subacute or acute, glandular ciliate, glandular pubescent abaxially, and glandular pubescent adaxially (sparse or absent), elliptic or obovate. Bract margins entire. Pedicels suberect at anthesis, straight at fruiting, (0.5–)3–7 mm long, eglandular-pubescent and glandular- pubescent; hairs all around pedicel. Flowers: Calyx 4-lobed, 5–6.5(–8) mm long. Calyx lobes oblanceolate or spathulate, subacute or obtuse. Calyx hairs on both abaxial and adaxial surfaces, mixed eglandular and glandular (mostly glandular). Calyx lobe margins entire. Corolla white at anthesis or mauve at anthesis (rarely). Nectar guides absent. Corolla throat yellow. Corolla 15–20 mm diam. Corolla tube 1.5–3 mm long, 1.5–2 mm wide, glabrous. Corolla lobes glabrous. Posterior corolla lobe elliptic or obovate, obtuse, 8–10 × 4–7 mm. Lateral corolla lobes elliptic or obovate, obtuse, flat, not enfolding stamens, 8–10 × 4–7 mm. Anterior corolla lobe elliptic or obovate, obtuse, 8–10 × 3–6 mm. Stamen filaments white, 3–4 mm long, not narrowed at base. Anthers mauve to purple, 1–1.5 mm long. Nectarial disc glabrous. Ovary ellipsoid, acute, glabrous or glandular hairy (sparsely at apex), 2– 2.5 mm long. Style 3–4 mm long. Stigma 0.3–0.5 mm wide. Capsules hygrochastic, narrowly angustiseptate (i.e., strongly flattened), emarginate, 4.5–6 × 2.5–3 mm, 1.5–2 mm thick, usually glabrous or hairy (sparsely). Hairs glandular, if present. Septicidal split of capsule extending to base. Loculicidal split of capsule extending 1⁄2 way to base. Seeds approx. 30–45 per locule, strongly flattened, smooth-surfaced, ellipsoid or obovoid, pale brown, 0.5–0.8 × 0.4–0.6 mm.