Giant Elephant Ear
Stems and Slices [Bac Ha (Viet - South and U.S.); Doc Mung, Roc Mung (Viet - North); Indian Taro; Hasu-imo, Ryukyu (Japan); Manto de Eva (Chile) Colocasia gigantea]

This plant is native to Southeast Asia, and is thought to be a natural cross between Alocasia macrorrhizos and Colocasia esculenta (Taro). The stems are eaten as a vegetable in Southeast Asia, particularly Vietnam, and in Japan. The root corms of this species are fibrous and inedible, and the leaves are not particularly edible either.

More on Arums.

Growing Colocasia Plant The photo to the left shows what the plant looks like. Some varieties can grow leaves up to 5 feet across. The stems are peeled and used as slices or short segments, mostly in soups. They have little flavor, but are valued for their foamy sponge-like texture and ability to hold a lot of the broth flavor.   Photo by Raffi Kojian distributed under license Creative Commons Attribution-ShareAlike v3.0 Unported.

Buying:   Colocasia stems are available in Asian markets that serve a Southeast Asian community. The photo specimens was a stem cut into segments for easy handling. The largest segment was 2-1/8 inch across the big end. Purchased from a large Asian market in Los Angeles (San Gabriel) for 2016 US $3.99 / pound. It is very light, so 11 segments averaging 7 inches long weighed only 1-1/8 pound.

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