noun
Refers to plants of the genus Rhododendron, including azaleas. The cross-reference 石南花 (しゃくなげ) is a common Japanese name for rhododendron.
See also: 石南花
庭にロードデンドロンを植えた。
I planted a rhododendron in the garden.
石南花 is the native Japanese name for rhododendron, while ロードデンドロン is the loanword from the scientific genus name, used especially in botanical or horticultural contexts.
Borrowed from the New Latin genus name Rhododendron, from Ancient Greek ῥόδον (rhódon, 'rose') + δένδρον (déndron, 'tree').