Linaria arvensis (L.) Desf.

Taprooted annual; stems erect, usually branched, (3)–7–30 cm tall. Vegetative or lower parts glabrous. Lvs 0.5–2.5 cm long, usually narrow-linear, sometimes linear on main stems and c. 2 mm wide, glaucous; apex acute or obtuse. Infl. with few to fairly numerous fls, congested and almost capitate at flowering, elongating at fruiting, glandular-hairy. Pedicels c. 1 mm long at anthesis; bracts narrow-linear, much > pedicels. Calyx 3–4 mm long, lobed nearly to base, strongly glandular-ciliate; lobes oblong-linear, subacute. Corolla c. 5 mm long (including curved spur 2–2.5 mm long), mauve or bluish mauve; upper lip 3–4 mm long. Capsule 3–4 mm diam., globose. Seeds 1–1.2 mm diam. (including wing), suborbicular, dark grey, smooth.

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

Flowering: Jul.–Mar.