Taro (Colocasia esculeuta var.antiquorum)

Taro is said to be the world’s oldest crop
plant, cultivated for its edible tubers, leaf stalks and leaves; it is very
easily grown in warm, moist conditions.

The tubers are usually
eaten cooked to destroy poisonous calcium oxalate crystals. Although they
contain more starch than potatoes the starch grains are smaller, which results
in a slimy texture. The leaves can be eaten when boiled. Drawings of Indian plants and trees later named at the Royal Botanical Gardens Kew