- Plant ID: 2321
- Family: Magnoliaceae
- Family Common Name: Magnolia Family
- Genus: Magnolia
- Species: sieboldii
- Cultivar: Colossus
- Common Name: Oyama Magnolia
- Accession Number: 2009-0329-A
- Site: Walled Garden
- Sub-Site: Outside 2
- Native Range: China, Japan, Korea