Amsonia Walter. Bluestars.
[by Bruce A. Sorrie and Alan. S. Weakley]
A genus of about 20 species, herbs, of temperate North America and Japan.
Ref: Doffett et al. (2014); Williams (2019a); Woodson (1928); Woodson (1929); Woodson (1936b); Woodson (1938); Woodson (1943); Woodson (1943). Show full citations.
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