I occasionally receive emails from people eager to know the identify of a particular fruit-bearing plant. Some have wondered if they've found Black Huckleberry. Others have guessed Choke Cherry. But all too often photos reveal their mystery plant to be Glossy False Buckthorn (Frangula alnus), a poisonous plant (or at least one with strong medicinal properties) as far as humans are concerned.
While there are many ways to tell these three species apart, one simple way is to examine the seeds. Each Choke Cherry contains one hard, central pit; each Black Huckleberry has ten small, crunchy seeds; Glossy False Buckthorn berries have __________. [I could tell you the answer, but it's more fun to go and find out for yourself. Report back with your findings.]