buckthorn leaves
https://www.wnyprism.org/invasive_species/common-buckthorn/
Chokecherry leaves:
Buckthorn above. Chokecherry below:
Leaves are similar to buckthorn leaves, but veins extend to the leaf edge.
Common buckthorn (Rhamnus cathartica) has small, sharp thorns at the tips of most of its twigs
https://www.wnyprism.org/
chokecherry is not invasive to Minnesota, and it is actually a common shrub in the state
While both chokecherry and buckthorn leaves can appear similar at first glance, they have key differences, with chokecherry
leaves generally being broader and more oval-shaped, while buckthorn
leaves tend to be longer and narrower with more pronounced, arcing
veins, and often have small thorns on the twigs, which chokecherry lacks.
Alternate leaf arrangement of the Prunus species distinguishes them from the buckthorn.
Chokecherries have alternate leaves (one leaf at a time coming out of
the branch.) The buckthorn leaves, though technically alternate, are
almost opposite (2 leaves coming out of the branch at the same place, at
180-degree angle.) Chokecherry leaves have coarsely dentate (toothed)
margins. Most species of buckthorn have finer teeth on the edges.
Buckthorn will have two seeds per fruit and the leaf arrangement is
opposite and the leaf veins are more parallel to the main vein than what
we can see in the picture.
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