|University of California, Berkeley|
Key to families | Table of families and genera
1. Leaf length not >> (often ± =) width; catkin pendent, bract cut into narrow segments; staminate flower with 8–60 stamens; perianth modified into non-nectariferous, cup- or saucer-shaped structure; winter bud scales > 3 ..... POPULUS
1' Leaf length generally >> width; catkin erect, bract entire; staminate flower with (1)2(10) stamens; perianth reduced to adaxial nectary (rarely also with abaxial nectary, then free or fused into shallow cup); winter bud scale 1 ..... SALIX
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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