腋含珠紫堇 ye han zhu zi jin

Herbs, perennial, 40-45 cm tall, glabrous. Rhizome short, with few small fleshy scales. Stems simple, slender, naked below or with a long-stalked withered leaf close to base, with 6 or 7 leaves in upper 1/2. Radical leaves unknown. Cauline leaves sessile, glaucous abaxially, green adaxially, obovate, 1-3.5 × 1-3 cm, pinnate with 1 or 2 pairs of leaflets and a large terminal pinna; basal pair of leaflets distant from next (pair of) leaflet(s), smaller, stipulelike (lowermost cauline leaf sometimes different with long-stalked basal leaflets); leaflets flabellate, entire or ± 2- or 3-divided, apically conspicuously crenate-dentate; uppermost leaves small, simple, ± lobed, serrate-dentate, grading into lowermost bracts; all leaves with axillary dark bulbil 3-4 mm. Racemes subspicate, 12-14-flowered; lower bracts broadly oblanceolate with a few sharp teeth; upper bracts often entire; pedicels erect-spreading, straight, ca. 10 mm, thin, equaling bracts. Sepals rounded, ca. 4 × 4 mm, lacerate-dentate. Corolla purple. Outer petals with short and broad rounded crests conspicuously overtopping apex; upper petal ca. 16 mm; spur almost straight or slightly upcurved, cylindric or slightly tapering, ca. 9 mm; nectary ca. 3/5 as long as spur; inner petals ca. 7 mm. Immature capsule fusiform, ca. 8 mm; style ca. 2.5 mm. Fl. Jun.

● Humid slopes; ca. 2500 m. S Shaanxi (Chang’an).