Herbs, perennial, caudex woody, 5–30 cm, glabrous and glaucous. Stems ascending to erect from decumbent base, branched from base. Leaves: alternate throughout or proximal opposite, divergent, erect or spreading; stipular glands absent; blade narrowly lanceolate, 5–25 × 1–3 mm, thick (basal leaves), margins entire, not ciliate, apex rounded to subacute; 1-nerved. Inflorescences panicles or thyrses. Pedicels 1–5 mm. Flowers: sepals persistent, lanceolate to ovate or broadly oblong, 2.5–4.5 mm, margins not scarious, inner glandular-toothed, outer entire or sparsely glandular-toothed near apex, apex acute to ± obtuse, not acuminate; petals bright yellow, oblanceolate to obovate, 5–12 mm; stamens 3–8 mm; anthers 1.5–2.5 mm; staminodia absent; styles distinct, 4–7 mm; stigmas capitate. Capsules ovoid-pyriform, 2.3–4 × 2.8–3.6 mm, apex pointed (easily crushed), freely dehiscing into 10, 1-seeded segments, segments persistent on plant, false septa incomplete, proximal margins ciliate. Seeds 2–2.7 × 1–1.4 mm. 2n = 26.
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