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Perennial herb much-branched near the base from a slender ± woody rootstock; stems several-30, ± unbranched, slender, erect or radiating, 7.5–15 cm. tall, bifariously pubescent in grooves which alternate at each successive internode or typically bristly pubescent all round.
Flowers 1–3 to 20 in Angola, in apical clusters and at 1–2 successive lower nodes, the 2 upper nodes often approximate; bracts leaf-like forming a kind of involucre with the main leaves.
Corolla violet-purple or blue; tube narrowly funnel-shaped, 5–6 mm. long, 2.5 mm. wide at the throat; lobes 4 x 2 mm., triangular to ovate, acute or obtuse.
Style exserted 3–5 mm., sometimes shortly papillose; anthers just exserted.
Calyx tube 1 mm. long; lobes 2, 3–4 x 0.5 mm., linear-lanceolate, acute.
Capsule ovoid, 2.5 mm. long.
Ripe seeds not seen.
