Lamium album L.

Perennial rhizomatous herb with hairy stems ascending to c. 50 cm. Lower lvs with slender petioles to 5 cm long; upper lvs and bracts with shorter petioles. Lamina 4–8 × 2–5 cm, ovate, hairy, especially above, crenate-serrate, sometimes deeply cut; base cordate or subcordate. Bracts very similar to lvs. Calyx 10–12 mm long, hairy; teeth slightly > tube, subulate. Corolla 1.8–2.3 cm long, white with hairy ring inside near base; upper lip c. 1 cm long, tomentose outside; lateral lobes of lower lip with 2 small teeth. Nutlets c. 2.5 mm long, sharply angled, patterned white.

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

Flowering: Sep.–Dec.–(Aug.)