Tag Archives: hybrids

Riparian oak, a hybrid oak in the Bluegrass

Update:  In response to some questions, we have added a description of differences between Northern red oak, Shumard oak and riparian oak at the end of this article. Near Ashland in Lexington, we found a beautiful, large riparian oak.  Riparian oak is a hybrid between Northern Red Oak, Quercus rubra, and Shumard oak, Quercus shumardii.  Its […]

Friday Tree Followup

This week’s Friday Tree was tricky. Some of you got it, and some of you were very close. The two reasonable guesses were Catalpa, Catalpa speciosa, or desert-willow, Chilopsis linearis. The flowers of both these trees are similar, and they are closely related, but they occupy very different habitats: catalpa is a midwestern tree of […]