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Cynanchum Linnaeus. Swallow-wort.

Key to Cynanchum

A genus of about 200-300 species, herbaceous vines and lianas, primarily of tropical and warm temperate portions of the New World and Old World (Endress et al. 2018). Ampelamus was retained as a genus by Liede (1997a), but later results suggest that it is not distinct from some other portions of Cynanchum (Liede & Täuber 2002). However, Cynanchum itself is strongly polyphyletic and is being broken up; further taxonomic and nomenclatural changes are likely. C. laeve will probably remain in Cynanchum s.s. (which is primarily Old World in distribution).

Ref: Endress et al. (2018) In Kadereit & Bittrich (2018); Krings (2001); Liede (1997a); Liede (1997b); Liede & Meve (1997); Liede & Täuber (2002). Show full citations.

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image of plant© Gary P. Fleming | Cynanchum laeve | Original Image ⭷
image of plant© Radford, Ahles and Bell | Cynanchum laeve | Original Image ⭷