The native subspecies of Juncus effusus (Juncaceae) in western North America |
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Authors: | Peter F. Zika |
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Affiliation: | (1) Herbarium, Department of Botany, University of Washington, Box 355325, 98195-5325 Seattle, WA, U.S.A. |
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Abstract: | Juncus effusus s. str. has two native representatives on the coast of western North America. A new combination is provided forJuncus effusus subsp.pacificus, ranging from California to British Columbia.Juncus effusus subsp.austrocalifornicus is newly described from southernmost California, Arizona, and Baja California, México. It differs from subsp.pacificus by its pale sheaths, with less thickened and less overlapping margins, and its disjunct distribution. A key is provided for the subspecies ofJ. effusus in North America. |
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Keywords: | Juncaceae Juncus effusus Canada Mexico United States |
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