Japanese Hamanasu Rose🌸
Rosa rugosa
ハマナス
A deciduous shrub of the Rosaceae family that forms colonies on coastal sands of northern Japan. Its large reddish-purple flowers are strongly fragrant, and its spherical fruits are also called hamanashi.
Identification Points
- ✓茎にとげが密生
- ✓花は紅紫色で大型・芳香
- ✓果実は球形で扁平
Habitat
北海道・本州（中部以北）の海岸砂地
Season
6〜8月（花）／8〜9月（果実）
3D Specimen Model
Kyushu University, Shikano Lab (CC0)
View on Sketchfab→Morphological TraitsAI-estimated, needs verification
Leaf arrangement
Alternate
Petal count
5 petals
Flower symmetry
Actinomorphic
Plant sex
Hermaphrodite
Stamen count
3-4
Phylogenetic Positionバラ科 →
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Rosales > Rosaceae
Divergence Era
Late Cretaceous (approx. 90 million years ago onward)
Sources & References
🤖Claude AI
AI-generated, needs verification