Herbs perennial. Leaves basal; petiole to 1/2 as long as leaf blade, glabrescent, narrowly winged; leaf blade elliptic to elliptic-obovate, 3--13 X 2--5 cm, papery, abaxially very sparsely minutely bristly or glabrescent except for midvein, adaxially sparsely minutely bristly, base attenuate to rounded, margin undulate-crenate on distal 1/2, pinnately incised near base, apex subrounded; veins inconspicuous. Scapes erect, 10--20 cm, sparsely villous; umbels 8--12-flowered; bracts linear-subulate, 3--6 mm. Pedicel 0.5--2 cm, glabrous. Calyx 4.5--5.5 mm, parted to 1/3; lobes triangular; veins 5, obscure. Corolla pale purple, ca. 5 mm in diam.; tube ca. 2.5 mm; lobes oblong, ca. 1.8 mm wide, margin entire or apex slightly emarginate. Fl. Apr-May.
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