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Japanese Pearπ
Pyrus pyrifolia
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A deciduous fruit tree native to East Asia with over a thousand years of cultivation history in Japan. Widely distributed cultivars include 'Kosui,' 'Hosui,' and 'Nijisseiki.' The fruit is characterized by its crisp, gritty texture and high water content, available from summer to autumn. Major production areas include Chiba, Ibaraki, Tochigi, and Tottori.
Identification Points
- βWhite 5-petaled flowers bloom in spring (same time as cherry blossoms)
- βLeaves are ovate to elliptical with pointed tips and serrate margins
- βFruit is globose to oblate, brown to yellow-green with a rough surface
- βFlesh contains stone cells (gritty cell clusters), giving a crisp, grainy texture
- βDeciduous tall tree, 5β15 m in height
Habitat
Orchards and gardens in warm climates
Season
April (flowering), AugustβSeptember (harvest)
3D Specimen Model
Kyushu University, Shikano Lab (CC0)
View on SketchfabβMorphological TraitsAI-estimated, needs verification
Leaf arrangement
Alternate
Leaf type
Simple
Venation
Pinnate
Leaf margin
Serrate
Leaf shape
Round
Growth form
Tree
Evergreen/Deciduous
Deciduous
Petal count
5 petals
Petal fusion
Free
Flowering season
Autumn
Habitat
Cultivated
Flower symmetry
Actinomorphic
Plant sex
Hermaphrodite
Stamen count
3-4
Phylogenetic Positionγγ©η§ β
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Rosales > Rosaceae
Divergence Era
Late Cretaceous (approx. 90 million years ago onward)
Evolution Notes
The genera Pyrus and Malus are closely related within Rosaceae subfamily Maloideae. The fruit is a pome (enlarged receptacle), a distinctive evolutionary trait of Rosaceae.
View on evolution timeline βSources & References
AI-generated, needs verification