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Anther–tube ± 1–2 mm. long, glabrous or short pubescent towards the apex on the back; the two lower anthers each with a tuft of hairs and a hyaline appendage at the apex.
Capsule obovoid to obconical, 8–10–nerved, glabrous or short pubescent, with 2 valves ± 1 mm. long, inferior part of capsule 2–2·8 mm. long.
Calyx–lobes very narrowly triangular or subulate, erect or spreading, 1·6–2·4 mm. long, entire, glabrous or short pubescent.
Corolla 8–10 mm. long, blue or pale blue, split to 2–2·5 mm. from the base on the back, puberulous inside towards the base.
Stems sparsely to much branched, angular, not winged, sparsely to densely short pubescent, often rooting at lower nodes.
Flowers solitary, terminal or axillary; pedicels 8–25 mm. long, filiform, glabrous or short pubescent, ebracteolate.
Annual or short–lived perennial, prostrate or decumbent, up to 6–30 cm. long herb, often forming tangling masses.
Filaments linear, all somewhat pubescent below, attached to the corolla–tube at the base.
Seeds broadly elliptic in outline, compressed, ± 0·4 mm. long, finely striate, brown.
Hypanthium obovoid to obconical, 8–10–nerved, glabrous or short pubescent.
Ovary semi–inferior.
