Herbs annual, with fibrous roots. Stem unbranched, erect or procumbent, 2-50 cm, not forming tubers below ground, pubescent with short, glandular hairs. Leaves cauline, alternate, sparse; stipule absent or reduced and hairlike; petiole 5-10 mm, flattened or narrowed, glabrous; leaf blade simple, light green or red, narrowly linear, 2-12 cm × 1-3 mm, pubescent or glabrous, apex acute. Inflorescence axillary or leaf opposed, 6-50 cm, glandular; raceme 1-30-flowered; peduncle to 12 cm; bracts linear, 6-8 mm; pedicels 0.6-1.5 cm. Sepals 5, united near base, yellowish green, lanceolate to narrowly oblong, 3-5 × 1-2 mm, glandular, margin entire. Petals white, light red, orange, or reddish violet, obovate to oblanceolate, 5-10 × 3-4 mm, veined. Stamens 5, 3-5 mm, papillose. Ovary terete, obovate, or subglobose, 1-2 mm; placentas 3; styles 3, deeply 2-parted nearly to base, usually incurved; stigma simple, 2-3 mm. Capsule globose-obovoid, 3-valved, 4-6 mm. Seeds black, small; venation thick and scrobiculate. Fl. and fr. all year. 2n = 28*.
The commonest species in W. Africa.
Stamens 5, filaments 3–4 mm. long.
Ovary subglobose, glabrous; styles 3, 2-partite to the base.
Seeds 0·4–0·5 x 0·3 mm., black, ovoid, apiculate; testa with longitudinal and transverse ridges.
Annual herb, caulescent, stem 3–50 cm., glandular-pubescent, foliose.
Peduncles lateral, usually extra-axillary, 0·5–15 cm. long, glandular-pubescent.
Leaves alternate; lamina 1–10 x 0·05–0·3 cm., linear, glandular; petioles 0·1–1·5 cm. long, glandular-pubescent; stipules absent.
Sepals 5, 3–5 x l–1·5 mm., ± lanceolate, glandular-pubescent.
Inflorescence 3–20-flowered; pedicels 0·3–2 cm. long, glandular-pubescent.
Petals 5, 6–8 x 3–6 mm., obovate, pink to purple.
Sepals 5, ± lanceolate, 3–5 mm. long, 1.0–1.5 mm. broad, glandular-pubescent.
Peduncles lateral, usually extra-axillary, 5–150 mm. long, glandular-pubescent; inflorescence 3–20-flowered; pedicels 3–20 mm. long, glandular-pubescent.
Leaves spirally arranged; blade linear, 10–100 mm. long, 0.5–3 mm. broad, glandular; petiole 1–15 mm. long, glandular-pubescent.
Stem 3–50 cm. long, glandular-pubescent, leafy.
Seeds ovoid, apiculate, 0.4–0.5 mm. long, 0.3 mm. broad; testa reticulate with longitudinal and transverse ridges.
Ovary subglobose; styles 3, bifid nearly to the base.
Petals 5, obovate, 6–8 mm. long, 3–6 mm. broad, pink to purple.
A slender, delicate, caulescent annual herb. Leaves linear, laxly arranged on stems. Inflorescence up to 150 mm long. Flowers mauve.
Slender annual, delicate, caulescent herbs forming a few roots. Stems thin, erect or matted. Leaves cauline apetiolate, exstipulate, with circinnate vernation, patent, erect, reflexed with age; lamina linear to filiform, 2-10 cm long, 0.5-3 mm broad, apex long acuminate, margins densely studded with long tentacles bearing knob-shaped glands, these absent near the base. Inflorescences several to a stem, axillary, patent-recurved, with 3-20 flowers on upper side, scape short, rhachis elongating during flowering and fruiting, up to 15 cm long; bracts appressed to the rhachis, small; pedicels up to 2 cm in fruit; flowers small. Calyx-lobes 2.5 mm long. Petals cuneate-obovate c. 6 mm long, pink to mauve. Stamens with thin filiform filaments. Styles divided from the base, with dilated, erect, stigmatic apices. Capsule broadly oblong, 2 mm in diam., seeds globose-ellipsoid, 0.4 mm, coarsely reticulate, black, apiculate. Flowering during the summer months.