Herbs, monocarpic, with a slender stem to 45 cm tall. Taproot radishlike, ca. 3.7 cm. Stems tenuous, glabrous, rarely sparsely villous. Basal leaves few, soon withering; petiole ca. 2.5 cm, lower part ampliate; blade oblanceolate, ca. 3.7 × 1.2 cm, both surfaces glabrous or slightly tomentose, abaxially glaucous, base attenuate and extending into petiole, margin entire, deeply undulate, broadly crenate, bipinnatilobate, or bipinnatisect, apex acute or rounded. Lower cauline leaves similar to basal leaves; upper cauline leaves with margin serrate, basally slightly amplexicaul, or like basal leaves. Flowers 2-6 from upper cauline leaf axils, semi-nutant. Pedicel ca. 13 cm at fruiting, only apically sparsely setose. Petals usually 5-7, rarely 4, lemon yellow, ovate or obovate, ca. 1.3 × 1 cm, apex acute or rounded, usually irregularly serrulate. Filaments filiform; anthers pale orange. Ovary ovoid to elliptic-oblong, glabrous or sparsely setose; styles distinct, ca. 6 mm; stigmas yellow, almost clavate or with separate lobes. Capsule elliptic-oblong, glabrous or sparsely setose, 3-5(or 6)-valvate for ca. 1/3 its length from apex.
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