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Diminutive annual 3–10 cm, dichotomously or dichasially branched; lvs opposite, ovate to oblong, 2–3 mm; sep 1 mm, 3-cleft ca 1/4 or 1/3 length across the broad summit, the lobes narrow, pointed; pet white, 1 mm; fr globose, 1 mm, soon splitting into 4 valves each partly divided by an incomplete false septum; 2n=18. Native of Eurasia and n. Afr., established in N.S. July, Aug. (Millegrana radiola)
Herbs, 3–10 cm; dichotomously branched. Leaves spreading; blade 2–6 mm, base clasping. Inflorescences: bracts usually leaflike, entire. Pedicels ascending. Flowers: sepals equal, oblong, apex deeply 3-fid; petals widely spreading, ovate, 1–1.5 mm, slightly narrowed at base; stamens 0.5–0.8 mm; anthers white. 2n = 18.
Stamens as long as the sepals, with anthers c.01 mm. long, globose-oblong; filaments expanded at the base; staminodes subulate (when present).
Leaf-lamina 1–3 × 0·75–2 mm., elliptic or the lower ones obovate, acute to rounded at the apex, cuneate to rounded at the base, 1-nerved.
Inflorescence a regular repeatedly dichasial many-flowered cyme, densely corymbose, flat or forming a rounded cushion; bracts foliar.
Petals white, as long as sepals, with obovate-circular lamina rounded at the apex and claw equalling the lamina or slightly longer.
Sepals c. 0·5–0·75 mm. long, (2) 3 (4)-fid, with acute teeth, united at the base.
Stem as long as the inflorescence or usually shorter, terete, often purplish-red.
Capsule almost as long as the sepals, straw-coloured, 8-seeded.
Ovary shallowly 8-lobed; styles free, short; stigma capitate.
Seeds c. 0·3 mm. long, ± ovoid, pale brown, smooth, shining.
Herb (0·2) 1–7 (10) cm. high, ± spreading, annual, glabrous.
A very small delicate annual, up to 3 in. high
Petals white.
