Compilation
Wahlenbergia hirsuta

Annual ± erect herb, 4–30 cm. tall. Stem usually much branched with widely spreading branches, ± hirsute. Leaves 10–55 x 4–25 mm., alternate, sessile to subpetiolate, narrowly oblanceolate to obovate or broadly elliptic to ovate, obtuse to subacute, rarely almost acuminate, with attenuate to cuneate base, ± hirsute; margin incrassate, undulate–dentate; midvein and lateral veins prominent beneath. Inflorescence lax, spreading; pedicels 5–20 mm. long, with very short but usually dense pubescence, often mixed with longer hairs. Hypanthium hemispherical, 5–nerved, ± hirsute. Calyx–lobes 1–3(5) mm. long. Corolla 1·5–4 mm. long, blue to pale blue or white, split almost to the base into lanceolate lobes, glabrous or hairy outside. Stamens with filament–bases ± rhombic, ciliate; anthers 0·5–1 mm. long. Ovary 3–locular, semi–inferior; style c. as long as or longer than the corolla, thickened in the upper part, eglandular, subcapitate or shortly 3–lobed at the apex, glabrous or hairy below. Capsule 3–locular, 5–nerved; valves 3, 1–2·5 mm. long. Seeds 0·4–0·6 mm. long, elliptic in outline with acute ends, trigonous; testa almost smooth, brown or sometimes almost black.