Ginkgo

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Ginkgo🍃

Ginkgo biloba

イチョウ

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イチョウ科WoodyDeciduousGymnospermStreet treeAutumn foliageWell-known

A gymnosperm known as a 'living fossil.' One of the oldest surviving tree lineages, with Ginkgo biloba as the sole extant species in the family Ginkgoaceae. Famous for its fan-shaped leaves and brilliant golden autumn foliage. Widely planted as a street tree and as a sacred tree at shrines.

Identification Points

  • Fan-shaped or bilobed leaves
  • Brilliant golden-yellow autumn foliage
  • Female trees produce foul-smelling seeds (ginkgo nuts)
  • Leaf veins are dichotomously branched

Habitat

Streets, parks, shrines and temples

Season

Year-round (golden autumn foliage in October to November)

3D Specimen Model

Kyushu University, Shikano Lab (CC0)

View on Sketchfab

Morphological TraitsAI-estimated, needs verification

Leaf arrangement

Alternate

Leaf type

Simple

Venation

Pinnate

Leaf dissection

Dissected

Leaf shape

Palmate

Growth form

Tree

Evergreen/Deciduous

Deciduous

Habitat

Roadside

Leaf margin

Entire

Petal fusion

No petals

Stipules

Absent

Flower symmetry

Actinomorphic

Ovary position

Superior

Plant sex

Dioecious

Phylogenetic Positionイチョウ科

Phylogenetic Position

Gymnosperms > Ginkgoopsida > Ginkgoales > Ginkgoaceae

Divergence Era

Permian to Triassic (approx. 250 million years ago onward)

Evolution Notes

A lineage dating back approximately 200 million years (Triassic Period). Once included many species, but only one survives today.

View on evolution timeline →
View イチョウ科 page🌿 View in taxonomy
📚樹木図鑑(ナツメ社)

Sources & References

📖Wikipedia 日本語版
🤖Claude AI生成(未確認)内容の正確性は未確認。YList・Wikipedia等での点検が必要。

AI-generated, needs verification