I'm aware that raw taro is toxic and needs to be properly cooked. However, I'm seeing some conflicting information online about eating taro bark. An article on WikiBooks states,
The hairy outer layer is always removed with caution since skin irritation can arise caused by the juices secreted by the taro root.
However, a Japanese recipe for grilling taro clearly keeps the skin on. Google translates a part of the recipe as:
Wash the root vegetables thoroughly with scrubbing etc. (Picture 1), cut into a 1 cm wide stripe with the skin.
Perhaps I've answered my own question, but can anyone confirm that the bark is edible?