Terlingua Brickellbush (Brickellia brachyphyllai var. terlinguensis)
The Terlingua Brickellbush is a variety of the Plumed Brickellbush (Brickellia brachyphylla (A. Gray) A. Gray) (see photo below); it is, or maybe was, restricted to the Chisos Mountains in Brewster County in western Texas, USA.
This form might now be extinct.
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Plumed Brickellbush (Brickellia brachyphylla)
Photo: Craig Martin
https://www.inaturalist.org/people/craigmartin
(public domain)
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edited: 25.04.2022