Image: Wikimedia Commons (See link for license)
Japanese Hemlock🌲
Tsuga sieboldii
ツガ
An evergreen conifer of the Pinaceae family that grows in temperate mountain forests. Its leaves are short with rounded tips, and the undersides have two white stomatal bands.
Identification Points
- ✓葉は短い線形で先がやや丸い
- ✓葉裏に2本の白い気孔帯
- ✓球果は小型で下垂
Habitat
本州・四国・九州の山地
Season
5月（花）／10月（球果）
3D Specimen Model
Kyushu University, Shikano Lab (CC0)
View on Sketchfab→Morphological TraitsAI-estimated, needs verification
Growth form
Tree
Leaf arrangement
Alternate
Leaf type
Simple
Venation
Parallel
Leaf margin
Entire
Leaf shape
Needle
Petal fusion
No petals
Stipules
Absent
Ovary position
Superior
Plant sex
Monoecious
Aromatic
Aromatic
Phylogenetic Positionマツ科 →
Phylogenetic Position
Gymnosperms > Pinopsida > Pinales > Pinaceae
Divergence Era
Triassic to Jurassic (approx. 200 million years ago onward)
Sources & References
🤖Claude AI
AI-generated, needs verification