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en.wikipedia.org/wiki/Rhamnus_(genus)

Rhamnus is a genus of about 110 accepted species of shrubs or small trees, commonly known as buckthorns in the family Rhamnaceae. Its species range from ...

www.dnr.state.mn.us/invasives/terrestrialplants/woody/buckthorn/id.html

Buckthorn identification. Common buckthorn (Rhamnus cathartica). Appearance: Tall understory shrub or small tree up to 25' high with a spreading loosely ...

dnr.wi.gov/topic/invasives/fact/commonbuckthorn.html

Jun 5, 2013 ... Biological, ecological and regulatory information on the invasive plant common buckthorn, Rhamnus cathartica.

forestry.ohiodnr.gov/buckthorn

A deciduous shrub or tree from the Buckthorn Family (Rhamnaceae). Buckthorn ... XCommon Buckthorn is highly invasive and should not be planted in Ohio.

www.mortonarb.org/trees-plants/tree-plant-descriptions/common-buckthorn-illegal-sell-illinois

Common buckthorn is an invasive plant in Illinois and should not be planted. It forms dense thickets and reproduces very freely, crowding out other plants and ...

landscape-restoration.com/how-to-identify-buckthorn-in-your-woodland

Sep 27, 2012 ... The cooler temperatures of fall make it a great season to work on removing buckthorn. Many of our native trees and shrubs change leaf color ...

www.na.fs.fed.us/spfo/invasiveplants/factsheets/pdf/common-and-glossy-buckthorn.pdf

DESCRIPTION. Plant habit. A tall shrub or small tree, buckthorn can grow 20 to 25 feet tall and up to 10 inches in diameter. A columnar variety of glossy.

www.extension.umn.edu/garden/yard-garden/trees-shrubs/common-buckthorn-identification

Common Buckthorn (Rhamnus cathartica) is a small, shrubby tree. Its poisonous, small, black berries are often mistaken for wild black cherries. This non-native ...

www.encyclopedia.com/plants-and-animals/plants/plants/buckthorn

Buckthorn is the common name for one of several species of shrubs or small trees of the genus Rhamnus that are used for medicinal purposes. The two most  ...