noun
Japanese alder
A deciduous tree native to Japan and East Asia, often found in wetlands. Scientific name: Alnus japonica.
湿地にはハンノキが多く生えている。
Many Japanese alders grow in the wetlands.
The name ハンノキ is thought to derive from はんのき, but the exact origin is uncertain. The kanji 榛 is used for the tree, but the word is usually written in kana.