noun
Japanese bird cherry; Prunus grayana
Rare term for a specific tree species; also known as 上溝桜 (うわみずざくら).
See also: 上溝桜
金剛桜は上溝桜の別名として使われることがある。
金剛桜 is sometimes used as another name for 上溝桜 (Japanese bird cherry).
More common name for the same tree (Prunus grayana); 金剛桜 is a rare alternative.
The derivation is uncertain; the kanji 金剛 (vajra, diamond) and 桜 (cherry) are conventionally associated with this tree name.