Echinocactus williamsianus Lem.
First published in Herb. Gén. Amat., sér. 2, 3(misc.): 43 (1843), nom. rej. prop.
This name is a synonym of Lophophora williamsii
Other Kew resources that provide information on this taxon:
This taxon has a temporary IPNI identifier and therefore an IPNI link cannot be provided, read more about this on the about powo page.
Kew Names and Taxonomic Backbone
- The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
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