Cerastium semidecandrum L.

Annual, with all branches reproductive. Stems ascending to erect, sometimes prostrate, (2)–5–15 cm long, with glandular and eglandular hairs. Lvs ovate to oblong to narrow-obovate, (2)–5–10–(20) × (1)–2–5–(10) mm, the lower petiolate, the upper sessile, with eglandular hairs. Infl. ± compact; pedicels usually > sepals at fruiting, with glandular and eglandular hairs. Bracts narrow-ovate with broad scarious margins especially at apex, green part glandular- and eglandular-hairy. Sepals 3–5 mm long, with broad scarious margins especially at apex and glandular and eglandular hairs not overtopping the slightly reflexed apex. Petals < than sepals. Styles 0.5 mm long. Capsule cylindric, slightly curved, up to 11/2× length of calyx. Seeds 0.4 mm long, very finely tuberculate.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

Flowering: (Sep.)–Oct.–Nov.–(Dec.); Fruiting: Oct.–Dec.–(Mar.)