ライ麦

1. Origins, structure, and basic meaning

• Structure: ライ麦 (らいむぎ) is a noun for rye, a cool-climate cereal grain used in foods such as bread.
• Basic usage: ライ麦を使ったパン identifies the grain used in dark bread, while ライ麦が育っている makes the crop growing beside wheat the subject.

2. Common pitfalls and similar expressions

• Food ingredient and growing crop
  • ライ麦を使う treats harvested grain as an ingredient, while ライ麦が育つ refers to the plant in a field. It should not be merged with the neighboring 小麦.