Cardamine sichuanensis (Brassicaceae), a new species from Sichuan, China

Cardamine sichuanensis, a new species from Sichuan, China, is described and illustrated. It resembles five other Chinese-endemic congeners in being scapose with leafless stems, but differs by the 3–5-foliolate basal leaves. Phylogenetic analysis based on nrITS sequences revealed that this novelty is close to C. macrophylla and C. tangutorum, both of which are non-scapose plants with lilac or purple (vs. white) petals usually 1.5–1.7 (vs. to 1) cm long.