A taxonomic revision of Cynanchum thesioides (Apocynaceae) with two new synonyms

By

Zhang, Caifei
Zhang, Dong-Juan
Liao, Miao
Hu, Guangwan

Type

Article

Date of Publication

2023

Original Publication

PhytoKeys

Volume

219

Pages

11--25

Subjects

Asclepiadeae , China , Mongolia , taxonomy , typification , Vincetoxicum

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.219.93514

 

Abstract

Cynanchum thesioides, a species widely distributed in north-eastern Asia, is revised to include two new synonyms: Vincetoxicum sibiricum f. linearifolium, described from Shandong, China in 1877, but long neglected and Cynanchum gobicum, previously believed to be endemic to Mongolia. Typification for C. thesioides and all its synonyms is given, including lectotypification of V. sibiricum var. australe and V. sibiricum f. linearifolium. An updated description, three figures showing the diverse habitats, habits and variation in morphological characters, and a general distribution map are also provided.