The flavans are benzopyran derivatives that use the 2-phenyl-3,4-dihydro-2H-chromene skeleton.

A C-glycosidic flavan can be isolated from cocoa liquor.

[1] Casuarina glauca is an actinorhizal plant producing root nitrogen-fixing nodules infested by Frankia.

There is a regular pattern of cell layers containing flavans.

[2] This article about an aromatic compound is a stub.