Ceropegia luzhiensis X.D. Ma & J.Y. Shen, a new species from Yimen, Yunnan, China, is described and illustrated. This species is similar to C. hookeri C. B. Clarke, C. intermedia Wight and C. manoharii Sujanapal, Salim, Anil & Sasidh., but clearly differs in its indumentum, the shape of leaf, the length of peduncle and pedicel, the shape and size of corolla and the shape of interstaminal corona lobe. A table including the morphological characters of related species and a dichotomous key to all 20 species of Ceropegia occurring in China are provided.

Primula longistyla, a new species of Primulaceae from Cangyuan County, Yunnan Province, China, is described and illustrated. This species is similar to P. densa, but differs clearly in that its leaves are densely white villous on both sides, homostylous flowers, exannulate corollas, longer corolla tube (2.5-2.8 cm long, ca 4 times as long as the calyx) and styles often obviously protruding from corolla tube. A comparison table of related species is provided.

Pterygiella luzhijiangensis Huan C. Wang, is described and illustrated as a new species endemic to Yunnan, southwest China. It occurs in thickets of the Luzhijiang hot‐dry valley at elevations of 1000–1300 m a.s.l. This new species is closely related to P. duclouxii Franch., but clearly differs from the latter by its procumbent stems, much branched at the base, 7–20 cm long, the leaves 1.0–2.2 cm long, 0.1–0.2 (0.25) cm wide, the corolla 2.0–2.2 cm long, obviously longer than the calyx, with the lower lip of the corolla much longer than the upper one.

Begonia puerensis sp. nov., a new tuberous species of Begonia sect. Reichenheimia (Begoniaceae) from Yunnan, China is described and illustrated. The morphological similarity between the new species and the similar species B. discreta, B. harmandii and B. qingchengshanensis is compared and discussed and a key to Begonia sect. Reichenheimia in China is provided. The new species is assessed as Endangered (EN) following the IUCN Red List Categories and Criteria.