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USGS Bee Inventory and Monitoring Lab   cc-publicdomain

Quercus (Oak) is a genus of tree in the family Fagaceae. They are native to Western North America, The Contiguous United States, Eastern North America, North America, and Canada. Flowers are visited by California Scrub Jay, Buff-tailed bumblebee, and Colletes brimleyi. Individuals can grow to 11 m.

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EOL has data for 15 attributes, including:

Known occurrences, collected specimens and observations of oak. View this species on GBIF