Sideritis × angustifolia Lam. ex Willk.
First published in Bot. Zeitung (Berlin) 17: 282 (1859), orth. var.
This name is a synonym of Sideritis × linearifolia
POWO follows these authorities in synonymising this name:
- 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 Sideritis × linearifolia.]
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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
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