Of the 160 species of barberry generally recognized only the following have been commonly cultivated in Iowa; the common or European barberry (Berberis vulgaris), the Japanese barberry (B. Thunbergii), the B. canadensis, B. amurensis, B. Sinensis, B. ilicifolia, B. Fischeri and B. maerocarpa. The B. Fischeri and B. maerocarpa are regarded as synonyms of B. canadensis. The common European barberry, though commonly credited to Western Europe, is Asiatic according to J. Lind's "The Barberry Bush and its Law," being a translation from Berberisbusken og Berberisloven.
Proceedings of the Iowa Academy of Science
©1919 Iowa Academy of Science, Inc.
Pammel, L. H.
"The Barberry in Iowa and Adjacent States,"
Proceedings of the Iowa Academy of Science, 26(1), 193-237.
Available at: https://scholarworks.uni.edu/pias/vol26/iss1/22