Annual or perennial herb, up to 60 cm; stems erect to ascending, branched, glabrescent to scabrid or strigose, hairs retrorse often with tubercled base. Leaves ovate to ovate-lanceolate to lanceolate to linear-lanceolate, (2.5–)10–35 mm long, (1.5–)4–8 mm wide, base cuneate, apex acute, margins entire, strigose, often black- dotted and verrucose, often drying black. Flowers axillary or in the axils of bracts, scented (recorded on one sheet only); bracts lanceolate, 4–5 mm; bracteoles linear to lanceolate, placed close under the calyx, shorter than the calyx tube; pedicels 4–12 mm. Calyx 4–6 mm, distinctly veined, glabrescent to strigose with short stipitate-glandular hairs, persistent; lobes triangular, 3.5–4 mm, strigose on the margins. Corolla mauve to pink or white flushed with pink, oblique, 10–18 mm long; tube 8–10 mm long, ± 8 mm in diameter, strigose with or without short stipitate glandular hairs, often with stipitate glands only outside, glabrous inside; limb 2-lipped, 5–6 mm strigose, sometimes very sparsely so or with hairs on the veins only, with or without short stipitate-glandular hairs, sparsely hairy inside. Larger anthers ± 5 mm, smaller ± 3 mm, orange, connective white. Ovary ovoid, strigose. Capsule subglobose, laterally compressed, 5–5.5 mm in diameter, glabrescent to strigose. Fig. 44, p. 173.