Saxifraga cataphracta (Saxifragaceae), a new species from Southwest China

Saxifraga cataphracta , a new species of Saxifragaceae from Southwest China, is described and illustrated. Morphological and molecular evidence ( matK , psbA‐trnH , psaJ‐rpl33 ) indicate that S. cataphracta belongs in S. sect. Irregulares , and is closely related to S. geifolia and S. mengtzeana . The new species can be diagnosed by its leaf blade abaxially with white or virescent interveinal streaks, involucre and bracts conspicuous, and capsule beaks winged when mature.