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Rhus aromatica/trilobata

Rhus aromatica and R. trilobata have been treated as distinct species and the same species over the years with little explanation in the Texas flora as to why. Although a much more thorough investigation into the literature would be preferable, I'll just go through the classic Texas references (I would ordinarily include FNA, but the Anacardiaceae treatment hasn't come out yet). Firstly, here are the three names and their equivalents under the two taxonomies:

R. aromatica var. serotina = R. aromatica var. serotina
R. aromatica var. flabelliformis = R. trilobata var. trilobata
R. aromatica var. pilosissima = R. trilobata var. pilosissima

Manual of the Vascular Plants of Texas considers R. trilobata a synonym of R. aromatica with little explanation.
Flora of North Central Texas considers the two species separate but notes the following: "This taxon [R. trilobata] is distinguished in some instances with difficulty from R. aromatica ...more ↓

Posted on June 10, 2020 16:31 by nathantaylor nathantaylor | 2 comments | Leave a comment
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The Llano Estacado encompasses flatlands, playas, and canyons. The climate is harsh and variable, water scarce, the soil compact. These adverse conditions engender deep respect for the living things that survive and often thrive here.
This project is intended as a forum to share observations and discoveries about the diverse plantlife of these parts. Hopefully it will inspire ...more ↓

Mini ellen5 created this project on October 14, 2015
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