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