Herbs perennial. Roots fibrous, subequally thick. Stems 12--60 cm, strigose, branched or simple. Basal leaves ca. 3; petiole 3.5--25 cm, strigose; blade 3-partite, broadly rhombic, 3--8 × 3--8 cm, papery, strigose, base broadly cuneate, central lobe linear to cuneate, margin 2--10-denticulate; lateral lobes linear or 1-or 2-denticulate or entire, or obliquely cuneate and unequally 2-cleft. Lower stem leaves similar to basal ones, upper stem leaves subsessile. Monochasium terminal, 2-to several flowered; bracts leaflike. Flowers 1.2--2 cm in diam. Pedicel 2.4--6 cm, short strigose. Receptacle glabrous. Sepals 5, ovate, 5--6 mm, abaxially strigose. Petals 5, obovate, 6--11 × 4--9 mm, nectary pit covered by a scale, apex subtruncate or rounded. Stamens numerous; anthers oblong. Aggregate fruit subglobose, ca. 5 mm in diam.; carpels numerous. Achene bilaterally compressed, obliquely broadly obovate, ca. 2.2 × 1.8 mm, glabrous, narrowly marginate; style persistent, ca. 0.3 mm. Fl. Jul--Sep.
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