Published July 19, 2021 | Version v1
Taxonomic treatment Open

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

  • 1. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & University of Chinese Academy of Sciences, Beijing 100049, China & zengyoupai @ scbg. ac. cn; https: // orcid. org / 0000 - 0003 - 3259 - 8011
  • 2. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & University of Chinese Academy of Sciences, Beijing 100049, China & feiwenqun @ scbg. ac. cn; https: // orcid. org / 0000 - 0001 - 9942 - 2120
  • 3. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & yuanqiong @ scib. ac. cn; https: // orcid. org / 0000 - 0003 - 2613 - 5045
  • 4. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & qeyang @ scib. ac. cn; https: // orcid. org / 0000 - 0002 - 6261 - 0731

Description

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

Notes

Published as part of Zeng, You-Pai, Fei, Wen-Qun, Yuan, Qiong & Yang, Qin-Er, 2021, Thalictrum changii (Ranunculaceae), a new species from southern Xizang (Tibet), China, pp. 248-260 in Phytotaxa 511 (3) on page 260, DOI: 10.11646/phytotaxa.511.3.4, http://zenodo.org/record/5426667

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