Bushes, woody vines or trees with usually alternate, un-lobed leaves. The small, greenish-yellow flowers are in clusters along the twigs. There is a cup-like 4- or 5-part calyx, 4 or 5 narrow concave petals and 4 or 5 stamens.

Tree This family contains trees.

Buckthorn, AlderSpecies is a Tree
Buckthorn, CommonSpecies is a Tree Rhamnus cathartica
Buckthorn, GlossySpecies is a Tree Rhamnus frangula