Betonica purpurea Gilib.
First published in Fl. Lit. Inch. 1: 82 (1782), opus utique oppr.
This species is a synonym of Betonica officinalis subsp. officinalis
POWO follows these authorities in synonymising this name:
- Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne. [Cited as Stachys officinalis.]
- Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Stachys officinalis.]
Other Kew resources that provide information on this taxon:
Kew Names and Taxonomic Backbone
- The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
- © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0