- ≡ Clypeola maritima L., Sp. Pl. 652 (1753)
- ≡ Alyssum maritimum (L.) Lam. (1753)
- ≡ Koniga maritima (L.) R.Br. (1826)
Usually perennial, rarely annual. Stems decumbent to ascending, hairy, leafy, branched below, 10–30–(45) cm tall. Lvs entire, hairy, linear-lanceolate to lanceolate, subacute, 12–30 × 2–3–(4) mm. Racemes 4–15 cm long; fls crowded in globose heads; pedicels spreading, hairy, 6–7 mm long. Sepals hairy, 1.5–2 × 0.5–0.8 mm. Petals glabrous, entire, usually white, rarely purple, 2.5–3 × 1.5–2 mm. Silicle obovate, subacute, slightly inflated, 3–4 × 1.5–2.5 mm; valves membranous, glabrous or sparsely hairy. Style c. 0.6 mm long. Seeds brown, ovoid, compressed, very narrowly winged, c. 1.2 × 1 mm, 1 per locule.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]
Flowering: (Jul.)–Oct.–May–(Jun.); Fruiting: (Jul.)–Oct.–May–(Jun.)