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Japanese Mallotus
Mallotus japonicus
アカメガシワ
A deciduous tree in the spurge family, distributed from Honshū to Okinawa and into China and Korea. A classic pioneer species, quickly colonizing clear-cuts and disturbed sites and dominating early succession. The name 'aka-me-gashiwa' ('red-bud oak') refers to the vivid red emerging leaves. The large leaves were historically used like oak leaves to serve food. The bark ('yago-dō') is a traditional digestive medicine; the wood is used for geta, carving, and toothpicks.
Identification Points
- ✓Vivid red new leaves
- ✓Large triangular to ovate leaves, sometimes shallowly 3-lobed
- ✓Pioneer species common in clear-cuts
Habitat
Clear-cuts, roadsides, secondary forests
Season
June to July (flowers)
Morphological TraitsAI-estimated, needs verification
Leaf arrangement
Alternate
Leaf type
Simple
Leaf shape
Ovate
Growth form
Tree
Evergreen/Deciduous
Deciduous
Habitat
Roadside
Phylogenetic Positionトウダイグサ科 →
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Malpighiales > Euphorbiaceae
Divergence Era
Late Cretaceous to Paleogene (about 90–80 million years ago)
Sources & References
AI-generated, needs verification