烟堇 yan jin

Herbs, 15-50 cm tall, diffusely branched and leafy throughout. Leaf lobes linear to narrowly oblong, to 1.5 mm wide. Raceme 10-40-flowered, usually shortly stalked; bracts oblong, ca. 1/2 to as long as spreading to erect-spreading rigid fruiting pedicels 4-6 mm. Sepals 2-3.5 × 1-1.5 mm, dentate. Corolla pink or pale amaranth; upper petal 7-9 mm, spur 2-2.5 mm, marginal wings often darker; lower petal narrowly subspatulate with long claw, limb ± dentate; inner petals tipped with dark purple. Infructescence 4-9 cm; fruiting pedicels 5-6 mm, straight and slightly thickened. Nut subreniform-truncate in profile, broader than long, ca. 2 × 2.5 mm, faintly rugulose. Fl. and fr. May-Sep. 2n = 32.

Weeds in fields and wastelands. Taiwan [cosmopolitan, possibly of E European origin].