Japanese Alder

Image: Wikimedia Commons (See link for license)

Japanese Alder🌳

Alnus japonica

γƒγƒ³γƒŽγ‚­

Share on X
γ‚«γƒγƒŽγ‚­η§‘TreeDeciduousWetlandNative to JapanAllergen

A deciduous tree in the birch family. Distributed across Japan, Korea, China, and the Russian Far East. Grows in lowland wetlands, swamps, and rice-paddy margins. Nitrogen-fixing root nodules allow it to thrive in poor or waterlogged soils. In winter, pendant catkins precede small pine-cone-like strobili. The rot-resistant wood was used for stakes and geta clogs. Also a notable source of seasonal allergens.

Identification Points

  • βœ“Alternate obovate leaves with shallow serrations
  • βœ“Small pine-cone-like strobili
  • βœ“Thrives in wetlands

Habitat

Wetlands, swamps, rice-paddy margins

Season

November to March (flowers)

Morphological TraitsAI-estimated, needs verification

Leaf arrangement

Alternate

Leaf type

Simple

Leaf shape

Ovate

Growth form

Tree

Evergreen/Deciduous

Deciduous

Habitat

Wetland

Phylogenetic Positionγ‚«γƒγƒŽγ‚­η§‘ β†’

Phylogenetic Position

Angiosperms > Eudicots > Fagales > Betulaceae

Divergence Era

Late Cretaceous to Paleogene

View γ‚«γƒγƒŽγ‚­η§‘ page🌿 View in taxonomy
πŸ“šζ¨Ήζœ¨ε›³ι‘‘οΌˆγƒŠγƒ„γƒ‘η€ΎοΌ‰

Sources & References

πŸ“–Wikipedia ζ—₯本θͺžη‰ˆβ†—
πŸ€–Claude AIη”ŸζˆοΌˆζœͺη’ΊθͺοΌ‰WikipediaγƒͺγƒΌγƒ‰γ‚’ζ Ήζ‹ γ«η”Ÿζˆγ€‚θ¦η’Ίθͺγ€‚

AI-generated, needs verification