Thalictrum changii, Y. P. Zeng, Q. Yuan & Q. E. Yang, 2021

Zeng, You-Pai, Fei, Wen-Qun, Yuan, Qiong & Yang, Qin-Er, 2021, Thalictrum changii (Ranunculaceae), a new species from southern Xizang (Tibet), China, Phytotaxa 511 (3), pp. 248-260 : 260

Key to Thalictrum changii and its closely allied taxa

1a. Leaflets subcoriaceous; sepals persistent in anthesis; carpels ca. 3 mm long...................................................................... T. changii

1b. Leaflets papery; sepals caducous; carpels 1.5–2 mm long.................................................................................................................2

2a. Sepals suborbicular; filaments white; styles 1/3 the length of carpels; achenes fusiform ................. T. yunnanense var. yunnanense

2b. Sepals elliptic; filaments purplish; style 1/2 the length of carpels; achenes narrowly fusiform ........................................................3

3a. Leaflets indistinctly 3-lobate, with lobes densely more than 5-denticulate; pedicels 0.5–0.8 cm long; persistent styles 1/3 the length of achenes ..................................................................................................................................................................... T. scabrifolium

3b. Leaflets distinctly 3-lobate, with lobes 2–4-crenate; pedicels 1–1.5 cm long; persistent styles nearly 1/2 the length of achenes ...... .................................................................................................................................................. T. yunnanense var. austroyunnanense