|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Betulaceae||View Description||Dichotomous Key|
|Genus: Alnus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Alnus rubra Bong.
Habit: Tree. Stem: trunk < 25 m. Leaf: blade thick, base rounded to tapered, tip acute, margin tightly rolled under, adaxially gray-green, midrib, major veins indented, abaxially +- gray-green, rusty-hairy, or with rusty, sessile glands.
Ecology: Wet places, especially after logging; Elevation: < 1000 m. Bioregional Distribution: NCo, w KR, NCoRO, CCo, SnFrB; Distribution Outside California: to southern Alaska, Idaho. Flowering Time: Feb--Mar
Synonyms: Alnus oregona Nutt.
eFlora Treatment Author: John O. Sawyer, Jr.
Jepson Online Interchange
Previous taxon: Alnus rhombifolia
Next taxon: Alnus viridis
Citation for this treatment: John O. Sawyer, Jr. 2016. Alnus rubra, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=12723, accessed on September 27, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 27, 2016.