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Dec 23, 2010

Calla (Bog Arum, Marsh Calla)

Calla (Bog Arum, Marsh Calla) is a genus of flowering plants in the Araceae family, which contains the singular of species Calla palustris. This original cold climates of the northern hemisphere, in central Europe, east and north (France and Norway eastward), northern Asia and northern North America (Alaska, Canada, northeastern United States borders).Flora von Deutschland, Österreich und der Schweiz 1885.

This is an annual herbaceous plant growing in swamps rhizomatous and pond. Leaves rounded to cordate cm long petiole 6-12 at 10-20 cm, and 4-12 cm wide. Greenish-yellow inflorescence is produced on the handle of approximately 4-6 cm, wrapped in white spathe. This fruit bunch red fruit, berries each contain several seeds.

This plant is very poisonous when fresh due to high oxalic acid content, but the rhizome, as moringa, Colocasia and Arum, eaten after drying, milling, washing and boiling.

Previously genus also includes a number of other species, which have now been moved to a separate genus Zantedeschia. This plant, from tropical Africa, however, is still often called "calla lilies", but should not be confused with C. palustris


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