Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera
    Index to accepted names and synonyms:
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Key to Betulaceae

View taxon page for Betulaceae


Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Leaf base oblique-cordate; fruits 1–2 per , not winged, each enclosed in a papery  of 2 fused bractspistillate calyx present, ovary inferior ..... CORYLUS

1' Leaf base subcordate, rounded, ± , or ; fruits many per catkin, winged, each subtended but not enclosed by 1 ; pistillate calyx 0, ovary superior

2. Pistillate catkin cone-like, with woody bracts remaining attached after fruit release ..... ALNUS

2' Pistillate catkin not cone-like, with papery, lobed bracts released with but not attached to fruit ..... BETULA



Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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