A new gardening question of the day appears every day of the year on the front page of Almanac.com. Below is the answer to one of the questions from our Gardening Questions and Answers Archive where you can find over 400 more gardening questions (with answers!).
How many species or varieties of oak trees are there?
True oaks, from the genus Quercus (part of the beech family), can be separated into three groups: white, red, and black. Many plants often called oaks aren't from this genus. These include African oak, Australian oak, bull oak, Jerusalem oak, poison oak, river oak, she-oak, silky oak, tanbark oak, Tasmanian oak, and tulip oak.
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