Notes For Reference:-　

Species, Varieties, or Forms in the Genus Hololeion:

Hieracium umbellatum / Suiran

Hololeion krameri / Suiran スイラン

Hololeion krameri is a perennial herb 0.5-1 m in height, borne in marshes or water's edges in foothills or wildernesses. It extends runners underground long to propagate into colonies. Leaves, 15-50cm long, 1-3cm in width, linear-lanceolate-shaped, radiate from the bases of the plants or gather at the lower parts of the plants, and their tips have sharp points; leaves on the upper parts are significantly smaller. The stem tops produce sparse 3-3.5cm across yellow flower heads. Bloom time: September-October.