Vascular Plants of the Pacific Northwest: Vascular cryptogams, gymnosperms, and monocotyledons, by C.L. Hitchcock, A. Cronquist and M. Ownbey
Vascular Plants of the Pacific Northwest: Ericaceae through Campanulaceae, by C.L. Hitchcock, A. Cronquist, and M. Ownbey
Vascular Plants of the Pacific Northwest
Flora of the Pacific Northwest; An Illustrated Manual, by C. Leo Hitchcock and Arthur Cronquist. Illus. by Jeanne R. Janish
University of Washington Publications in Biology
Flora of the Pacific Northwest
An Abnormal Peppergrass
Vascular Plants of the Pacific Northwest
A Monographic Study of the Genus Lycium of the Western Hemisphere
A Study of the Perennial Species of Sidalcea. Part I. Taxonomy. By C.L. Hitchcock. Part II. Chromosome Numbers and Interspecific Hybridizations. By A.R. Kruckeberg
Further Studies in "Lycium.".
The Perennial Mexican Namas
Vascular Plants of the Pacific Northwest: Saxifragaceae to Ericaceae, by C. L. Hitchcock and Arthur Cronquist
The Mexican, Central American, and West Indian Lepidia