Provides descriptive overview and link to one species.

Presents the hierarchical position of this plant group.

Discusses fruit and seed morphology of this plant group.

Describes the unique traits of member species.

Abstract of the article by Michael Bhardwaj and Christopher G. Eckert.

Defines the taxonomic hierarchy, nomenclature, and status of this plant group.

Presents common names of member species.

Presents photos of representative species.