大花堇叶芥 da hua jin ye jie

Herbs ca. 15 cm tall, scapose. Stems erect, simple, leafless, few from base. Basal leaves rosulate; petiole 4-12 cm; leaf blade broadly ovate or suborbicular, 2-6 × 1.5-3.5 cm, base subcordate or subtruncate, margin crenate-repand, with apiculate callosities to 0.5 mm, apex rounded. Cauline leaves absent. Fruiting pedicels suberect or ascending, 1-1.5 cm, all on raceme. Sepals oblong, ca. 3.5 × 1.5 mm. Petals white, narrowly obcordate, ca. 8 × 3 mm. Filaments white, ca. 3.5 mm; anthers ovate, ca. 0.6 mm. Ovules 30-40 per ovary. Immature fruit linear, ca. 2 cm × 1 mm, subtorulose; style slender, 1-1.2 mm. Mature seeds not seen. Fl. Apr.

* Damp places by streamsides; about 600 m. Hunan, Sichuan.