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Re: Cacalia atriplicifolia


There is individual variation in both stem color and whiteness of the 
underside of the leaves which occurs naturally in this species, just 
as there is genetic and phenotypic (appearance) variation in all 
healthy biological populations. Always remember too that plants don't 
read the books, so they don't always know how they're "supposed to" 
look.

Arnoglossum is the currently accepted name for the genus including 
this and related species. There is a lot of "new-fangled" research in 
plant classification going on which results in new understanding of 
what's related to what, or not, so numerous name changes have been 
or will soon be proposed. This is nothing new. Look at a wildflower 
guide or tree guide from 50 years ago, and many names for common 
species will not be recognizable. Science is not Truth, only current 
understanding.



James C. Trager
Shaw Arboretum
P.O. Box 38
Gray Summit MO 63039
PH# 314-451-3512
FAX 314-451-5583
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