lower leaves
Refers to leaves growing on the lower part of a plant, often contrasted with 上葉 (うわば, upper leaves). Used in botanical or gardening contexts.
Antonyms: 上葉 (うわば)
Removing the lower leaves of tomato plants improves air circulation.
upper leaves
Compound of 下 (した, 'lower') + 葉 (は, 'leaf'), with rendaku voicing of は to ば.