Native (Alder-leaved) Buckthorn

Image may contain: plant, flower, outdoor and nature

Image may contain: plant, outdoor and nature

Image may contain: plant, outdoor and nature

As non-native buckthorn steals a lot of negative press and our precious time, we wanted people to see Minnesota’s NATIVE Alder-leaved Buckthorn!

We found it surveying in Toimi and thought you’d like it too!

Also, be sure to report NON-NATIVE Buckthorn online with eddmaps.com or with us at Lake Co SWCD.

More info on native Alder-leaved Buckthorn (Rhamnus alnifolia):

“A primary means of reproduction is by a process called “layering”, where the horizontal stems and branches produce roots, creating expanding colonies up to 50 feet across. The root/branch structures of these colonies may become disconnected over time producing genetically identical but independently functioning individuals within the colony. This native can be distinguished from the invasive non-native buckthorns by its short stature (3 feet or less at maturity), the obvious stipules at the base of the leaf stalk, 5-parted flowers, and leaves with rounded teeth and 5 to 8 veins per side. Glossy Buckthorn (Frangula alnus) has toothless leaves with 6 to 9 veins per side, and Common Buckthorn (Rhamnus cathartica) has 4-parted flowers and leaves with rounded teeth and only 3 or 4 veins per side. Both of the non-natives grow significantly taller and bushier than Alder-leaved Buckthorn.”

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