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Document Type

Research

Abstract

Sow thistle is not a thistle as the common name implies, but it belongs nevertheless to the Thistle Family, Compositae. The genus Sonchus, according to Hegi (1931), is widely distributed in cultivated parts of the temperate and even the subtropical world, and the four ruderal species, now extending their range in North America, are found in Europe, Asia, parts of Africa, and South America. They include the perennials Sonchus arvensis L. and Sonchus arvensis L. var. glabrescens Guenth., Grab., and Wimm. as well as the annuals Sonchus asper (L.) Hill and Sonchus oleraceus L.

Publication Date

1944

Journal Title

Proceedings of the Iowa Academy of Science

Volume

51

Issue

1

First Page

199

Last Page

216

Copyright

© Copyright 1944 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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