canna

canna, (genus Canna), genus of about 10 species of flowering plants, the only genus of the family Cannaceae (order Zingiberales). The plants are distributed from southeastern North America through South America. Many are cultivated as ornamentals for their showy flowers and attractive foliage, and a number of cultivars have been developed. Edible canna, or Indian shot (Canna indica), and achira (C. discolor) have edible starchy rhizomes and are grown agriculturally in some places; the latter...