The following literature references are cited in the Washington Flora Checklist. These may include floras, journal articles, monographs, theses, web sites, and other scholarly resources.
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J. M. Porter & L. A. Johnson. 2000. A Phylogenetic Classification of Polemoniaceae, Aliso 19(1):55-91.
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Jacobson, A. L. 1996. North American Landscape Trees. Ten Speed Press, Berkeley, CA.
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Jacobson, A. L. 2001. Wild Plants of Greater Seattle. Publ. by the author, Seattle. 494 pp.
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Jacobson, A. L., F. C. Weinmann, and P. F. Zika. 2001. Noteworthy collections. Washington. MadroƱo 48: 213-214.
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Jacobson, A.L. and P.F. Zika. 2007 A new hybrid cherry, Prunus xpugetensis (P. avium x P. emarginata, Rosaceae) from the Pacific Northwest. Madrono 54: 74-85.
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Jacobson, H. A., J. B. Peterson, and D. E. Putnam. 1988. Evidence of pre-Columbian Brassica in the northeastern United States. Rhodora 90: 355-362.
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Jansen, R. K., R. S. Wallace, K.-J. Kim, and K. L. Chambers. 1991. Systematic implications of chloroplast DNA variation in the subtribe Microseridinae (Asteraceae: Lactuceae). American Journal of Botany 78: 1015-1027.
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JBRIT 7(1): 275-297.
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JBRIT: 7(2): 652-657.
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Jimenez-Mejias et al. 2017. Taxon 66(4): 974-975.
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Johnson, A. M. 1927. The status of Saxifraga nuttallii. Amer. J. Bot. 14: 38-43.
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Johnston, I.M. 1923. Studies in the Boraginaceae. 4. A synopsis and redefinition of Plagiobothrys. Contributions of the Gray Herbarium 68: 57-80.
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Johnston, I.M. 1925. The North American species of Cryptantha. Contrib. Gray Herbarium 74: 3-114.
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Johnston, I.M. 1932. Studies in the Boraginaceae. IX. The Allocarya section of Plagiobothrys in the western United States. Contributions of the Arnold Arboretum 3: 5-82.
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Johnston, I.M. 1952. Studies in the Boraginaceae, XXIII. A survey of the genus Lithospermum. Journal of the Arnold Arboretum 33: 299-366.
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Judd, W. S. and I. K. Ferguson. 1999. The genera of Chenopodiaceae in the southeastern United States. Harvard Pap. Bot. 4: 365-416.
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Judd, W. S. and K. A. Kron. 1993. Circumscription of Ericaceae (Ericales) as determined by preliminary cladistic analyses based on morphological, anatomical, and embryological features. Brittonia 45: 99-114.