Roureopsis

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Roureopsis

Rourea minor

ロウレア

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マメモドキ科WoodyVine/ClimberEvergreenRyukyu IslandsTropical plant

A climbing shrub distributed from Southeast Asia to Pacific islands, found wild in forests of Okinawa and the Ryukyu Islands. Characterized by odd-pinnately compound leaves and dehiscent fruits that reveal seeds with red arils. Its distribution in Japan is very limited.

Identification Points

  • Climbing woody plant with odd-pinnately compound leaves
  • Fruits dehisce to expose black seeds with red arils
  • Native to forests of the Ryukyu Islands

Habitat

Evergreen forests of the Ryukyu Islands

Season

Year-round (evergreen)

Morphological TraitsAI-estimated, needs verification

Growth form

Vine

Evergreen/Deciduous

Evergreen

Leaf type

Compound

Leaf dissection

Dissected

Leaf arrangement

Alternate

Petal count

Many

Stipules

Absent

Flower symmetry

Actinomorphic

Ovary position

Superior

Stamen count

3-4

Phylogenetic Positionマメモドキ科

Phylogenetic Position

Angiosperms > Eudicots > Core eudicots > Celastrales > Connaraceae

Divergence Era

Late Cretaceous to Paleogene

Evolution Notes

Connaraceae is a tropical family related to Fabales, having evolved bird dispersal through colorful arils. The Ryukyu Islands represent nearly the northern limit of its distribution in Japan.

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Sources & References

📖Wikipedia(英語版)
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