|University of California, Berkeley|
Key to families | Table of families and genera
1. Calyx sinus appendages 0; calyx not enclosing mature fruit ..... P. membranaceum
1' Calyx sinus appendages present; calyx enclosing mature fruit
2. Petiole narrow-winged; style 1–3 mm; seeds 1–2 mm ..... P. racemosum
2' Petiole wide-winged; style 4–8 mm; seeds 2–3 mm ..... P. auritum
3. Corolla < 10 mm wide ..... var. arizonicum
3' Corolla 10–30 mm wide ..... var. auritum
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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