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Ambrosia johnstoniorum (Asteraceae), a new species of ragweed from the Chihuahuan Desert

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Abstract

Ambrosia johnstoniorum is described from two collections of I. M. Johnston from central Coahuila. The taxon has a distinctive assortment of characteristics and appears most closely related toAmbrosia nivea (Robins. & Fern.) Payne of northern Chihuahua.

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  1. Department of Biology, California State University, 90032, Los Angeles, CA

    James Henrickson

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  1. James Henrickson
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Henrickson, J. Ambrosia johnstoniorum (Asteraceae), a new species of ragweed from the Chihuahuan Desert. Brittonia 32, 340–342 (1980). https://doi.org/10.2307/2806729

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  • DOI: https://doi.org/10.2307/2806729

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