Source : Webster's Revised Unabridged Dictionary (1913)

Yautia \Yau*ti"a\, n. [Native name in the Antilles.]
   In Porto Rico, any of several araceous plants or their
   starchy edible roots, which are cooked and eaten like yams or
   potatoes, as the taro.

Source : WordNet®

yautia
     n : tropical American aroid having edible tubers that are cooked
         and eaten like yams or potatoes [syn: {tannia}, {spoonflower},
          {malanga}, {Xanthosoma sagittifolium}, {Xanthosoma
         atrovirens}]