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Issue: Vol. 732 No. 2: 4 Dec. 2025
Type: Article
Published: 2025-12-04
DOI: 10.11646/phytotaxa.732.2.1
Page range: 105-128
Abstract views: 38
PDF downloaded: 6

Clematis huangjingensis (Ranunculaceae), a new synonym of the widely distributed Chinese species C. grandidentata

Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China
Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China
Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China
Clematis chingii morphology new synonymy Sichuan taxonomy Eudicots

Abstract

Based on a careful examination of herbarium specimens (including type material) and living plants in the wild, together with observations of the pubescence on branchlets, leaflet blades, petioles, peduncles and pedicels using scanning electron microscopy (SEM), we demonstrate that Clematis huangjingensis (Ranunculaceae), described from Gulin county in southeastern Sichuan, China, is indeed readily distinguishable from C. chingii by the pubescence on branchlets, petioles, leaflet blades, peduncles and pedicels, the inflorescence morphology and the geographical distribution, a species distributed in northern Guangdong, Guangxi, southern Guizhou, western Hunan and southeastern Yunnan, China, but not essentially different from C. grandidentata in any characters, a species widely distributed in the country (western Anhui, Chongqing, southern Gansu, Guizhou, southwestern Hebei, western Henan, Hubei, western Hunan, southern Ningxia, eastern Qinghai, southern Shaanxi, Shanxi, Sichuan, northeastern and northwestern Yunnan, northwestern Zhejiang). We therefore place C. huangjingensis in synonymy with C. grandidentata herein. We recognize two varieties under C. grandidentata, var. grandidentata with pubescent ovaries and achenes and var. likiangensis with glabrous ovaries and achenes.

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How to Cite

Xiong, S.-M., Huang, Q.-L., Li, C.-S., Su, C.-L., Yuan, Q. & Yang, Q.-E. (2025) Clematis huangjingensis (Ranunculaceae), a new synonym of the widely distributed Chinese species C. grandidentata. Phytotaxa 732 (2): 105–128. https://doi.org/10.11646/phytotaxa.732.2.1