- ≡ Alyssum saxatile L., Sp. Pl. 659 (1753)
Perennial herb; stems decumbent to erect, leafy, branched above, 15–50 cm tall. Lvs entire, stellate-hairy; rosette and lower cauline lvs oblanceolate to obovate, 3–10–(15) × 1–3 cm; upper cauline lvs linear to lanceolate, 1–2 cm long. Infl. a diffuse panicle 15–30 cm long; pedicels erecto-patent, hairy, 0.3–0.6 mm long. Sepals deciduous, 1–2 × 0.5–1 mm, with tangled stellate hairs. Petals glabrous, emarginate, 3–4 × 2–3 mm. Outer filaments with small suborbicular appendage at base. Silicle almost circular, obtuse, flattened, 4–5 × 4–5 mm; valves glabrous; veins faint; style 0.7–1 mm long. Seeds brown, elliptic to circular, flattened, 2–3 × 2–2.5 mm, 2 per locule.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4. as Alyssum saxatile L.]
Flowering: Oct.–Mar.– (Jun.); Fruiting: Oct.–Mar.– (Jun.)