• Stewartia Linnaeus, 1753 [Family: Theaceae]
• Stewartia Olsson & Harbison, 1953 † [Family: Lucinidae]
• Stewartia Rao, 1989 accepted as Aplectana Railliet, 1916 [Family: Cosmocercidae]
• Stewartia chabaudi Rao, 1989 accepted as Aplectana chabaudi (Rao, 1989)
• Stewartia floridana (Conrad, 1833) †
• Stewartia malacodendron Linnaeus
• Stewartia ovata (Cav.) Weatherby
• Stewartia pentagyna L'Hér. accepted as Stewartia ovata (Cav.) Weatherby