Botany
Calla is a genus of flowering plant in the family Araceae, containing the single species Calla palustris (bog arum, marsh calla, wild calla, squaw claw, and water-arum). It is the only genus in the tribe Calleae of the subfamily Aroideae. Its systematic position has been described as "puzzling", and it has also been placed in its own family Callaceae and its own subfamily Calloideae.
Idesia.
Fragaria.
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