A genus made up of perennial herbs or shrubs in the family Geraniaceae, native mostly to subtropical southern Africa. Geraniums are among the most popular of bedding and greenhouse plants. The closely related genus Pelargonium contains some 280 species of annual, biennial, and perennial herbaceous plants that are commonly called geraniums.

Britannica Editors. "geranium". Encyclopedia Britannica, 5 Sep. 2026, https://www.britannica.com/plant/geranium-plant-genus-Geranium. Accessed 17 October 2026.