紫堇叶唐松草 zi jin ye tang song cao

Plants 20--40 cm tall, glabrous. Basal leaves 3. Cauline leaves stout; petiole 1--1.8 cm; leaf blade 4-pinnate, ca. 4.5 cm; petiolule short; leaflet blade broadly rhombic, 1.5--4 × 1.5--4 mm, thick, 3-lobed; lobes lanceolate-linear or narrowly oblanceolate, entire; veins inconspicuous. Inflorescence paniculate, 12--20 cm, few flowered. Bracts ovate. Pedicel ca. 4.8 mm in fruit. Sepals 4, greenish tinged, ovate, ca. 2 mm. Stamens 5--8; filament filiform, ca. 2.5 mm; anther oblong, ca. 1.5 mm, apex mucronate. Carpels 3--5; style ca. 0.5 mm; stigma persistent, triangular winged. Achenes sessile; body narrowly ellipsoid, ca. 4 mm; veins ca. 8, stout. Fl. Jun.

Slopes, rocky ledges; ca. 1200 m. W Xinjiang [C and SW Asia].