|University of California, Berkeley|
Key to families | Table of families and genera
1. Inflorescence spike or panicle, dense; calyx lobe glandular hairs < 0.5 mm ..... P. arenarium
1' Inflorescence head, concave; calyx lobe glandular hairs < 1.5 mm ..... P. sonorae
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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