Calla (bog arum, marsh calla, wild calla, squaw claw, and water-arum) is a genus of flowering plant in the family Araceae, containing the single species Calla palustris.
It is a rhizomatous herbaceous perennial plant growing in bogs and ponds. The leaves are rounded to heart-shaped, 6–12 cm (2 1⁄4–4 3⁄4 in) long on a 10–20 cm (4–8 in) petiole, and 4–12 cm (1 1⁄2–4 3⁄4 in) broad. The greenish-yellow inflorescence is produced on a spadix about 4–6 cm (1 1⁄2–2 1⁄4 in) long, enclosed in a white spathe. ...
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