Image: Wikimedia Commons (See link for license)
Shikuwasa🍊
Citrus × depressa
シークヮーサー
An evergreen shrub and citrus in the rue family. Japanese name 'Hiramire-mon'. The name comes from Okinawan dialect 'shi-kuwasu' ('sour-feeder'). Small and highly acidic — unripe fruit is used for juice and seasoning, ripe fruit for eating. A specialty of Okinawa, noted for its health-promoting compounds.
Identification Points
- ✓Small flattened-spherical fruit 3–4 cm across
- ✓Glossy elliptic leaves
- ✓Fragrant white spring flowers
Habitat
Cultivated (Okinawa, Amami)
Season
August to December (fruit)
Morphological TraitsAI-estimated, needs verification
Leaf arrangement
Alternate
Leaf type
Simple
Growth form
Tree
Evergreen/Deciduous
Evergreen
Flower color
White
Habitat
Cultivated
Phylogenetic Positionミカン科 →
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Sapindales > Rutaceae
Divergence Era
Late Cretaceous to Paleogene (ca. 85–70 million years ago)
Sources & References
📖Wikipedia 日本語版↗
🤖Claude AI生成（未確認）Wikipediaリードを根拠に生成。要確認。
AI-generated, needs verification