Erect to decumbent, ±caespitose subshrub to 30 cm high, compact to open. Branches ±terete with c. 6 fine to deep longitudinal furrows, sparsely to densely hairy, occasionally glabrous; hairs less than 0.1 (–0.2) mm long. Leaves sessile, linear, 4.8–7.3 mm long, 0.5–0.8 mm wide, densely fimbriate, membranous at base of margin, often slightly recurved at apex; abaxial surface hairy; adaxial surface glabrous except for a few hairs distally. Inflorescence 1-flowered. Calyx 4.5–5.6 mm long; lobes narrowly triangular. Corolla 5.6–8.5 (–10.7) mm long, 1/2–2/3-connate, bright yellow, or lemon-yellow; lobes ±obovate, papillose to minutely fimbriate on margin, rounded apically; outer surface glabrous, papillose above, with scattered hairs near sinus; inner surface glabrous or ±hairy basally, densely papillose on lobes. Ovary ±glandular hairy; style moderately to densely hairy throughout; stigma 1–1.3 mm long, deeply bilobed (sinus 0.4–0.6 mm long), strongly divergent distally.