Geranium can be:

• The genus Geranium of flowering plants, usually called the cranesbills or (somewhat redundantly) "hardy geraniums".
• Members of the related genus Pelargonium, which are commonly called geraniums by gardeners and in the horticultural trade.

This confusing situation arises because Pelargoniums were formerly classified in genus Geranium. The two genera are closely related, and both belong to the family Geraniaceae.

"Florists' geraniums are hybrid varieties of the S African genus Pelargonium."

Geraniales

Pelargonium | Geranium | Gerânio | Geranium