Vascular plants of the Pacific Northwest - Hitchcock, C. Leo. (Seatle : University of Washington, 1955)
Contenido : v.1 Vascular crytogams, grymnosperms and monocotyledons.--v.2 Salicaceae to saxigraceae to ericaceae.--v.4 Ericaceae thrpugh campanulaceae.--v.5 Compositae
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Keywords: Botánica -- E.U.A.