Wild plants in and around Shimane 島根とその周辺の野生植物


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Arisaema thunbergii ssp. urashima / Urashimasou ウラシマソウ

Bloom time: April-May

Araceae /



Species in the genus Arisaema:

Arisaema heterophyllum / Maidurutennanshou
Arisaema japonicum / Mamushigusa
Arisaema kiurashianum / Himeurashimasou
Arisaema ringens / Musashiabumi
Arisaema thunbergii ssp. thunderberigii / Nangokuurashimasou
Arisaema thunbergii ssp. urashima / Urashimasou


Arisaema thunbergii ssp. urashima / Urashimasou ウラシマソウ

Arisaema thunbergii ssp. urashima is a perennial herb inhabiting forest floors in coastal areas or near human settlements, with single compound leaves. Corms form many bulblets underground, which generally results in colonies. Leaves, singles, are radical, emerging from the bases of the plants, comprising 11-17 leaflets, called pedate compound leaves. Petioles measure 40-50cm in height and look like stems. From the bases, flower stalks arise, and the tops set spadixes with flowers enveloped with spathes below the leaves. The flowers are dioecious; young strains put male flowers, and complete ones give females. Appendages, black-purple, measure 60cm in length. Bloom time: April-May.
inserted by FC2 system