Leonurus cardiaca L.

Scarcely aromatic perennial. Stems to c. 1.5 m tall, hairy, especially on angles. Petioles to c. 20 cm long, densely hairy. Lamina variously lobed or dissected; lamina of lower lvs 6–10 × 5.5–10 cm, broad-ovate, usually 7-lobed with lobes lobulate, dark shining green and with appressed hairs above, more densely hairy below, especially on the veins; base cordate. Upper lvs and bracts similar, 3–5-lobed; lobes nearly entire or coarsely toothed; base broad-cuneate to rounded; apex acuminate. Calyx tube 3–4 mm long, sparsely hairy or glabrous; teeth 2–3 mm long, subulate, the lower becoming deflexed. Corolla 8–10 mm long (to apex of upper lip), pale pink except for purple spots on upper and lower lips; tube with ring of white hairs inside; upper lip c. 4.5 mm long, with white-villous hairs outside; lower lip 3–4 mm long, with recurved lobes. Nutlets c. 2 mm long, sharply angled, with apical tuft of hairs.

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

Flowering: Dec.–Feb.