里芋

1. Origins, structure, and basic meaning

• Structure: Written 里芋 and read さといも, it is taro, a crop whose rounded underground corm is eaten as food.
• Basic usage: It is dug from a field for a simmered dish and can make hands itch while being peeled.

2. Common pitfalls and similar expressions

• A distinct crop from potato
  • Although both are underground foods, taro has its own texture and potentially irritating raw peel.