Taxonomic Re-examination on Euphorbia ebracteolata Hayata

희귀생약 붉은대극(Euphorbia ebracteolata Hayata)에 대한 분류학적 재검토

Euphorbia ebracteolata Hayata is a perennial herb of Euphorbiaceae that has a cyathumal inflorescence, the glands of the involucres are rounded-cordate and reddish, stems are erect, thick and 40-50 cm high. The leaves are alternate and rather numerous. So far this plant has been known as a unreported species in Korea. However, as the result of this study, this plant was found to be widely distributed in Korea over eight habitats, i.e. Keunduk, Dokye and Kaliwangsan, Kangwon-do: Dunduksan, Kyongsangbuk-do: Okcheon, Chungcheongbuk-do: Manduksan, Baekyangsan and Naejangsan, Jeolanam-do. On the other hand, its variety, E. ebracteolata var. coreana Hurusawa which grows only in Poong-do, Kyongki-do was reviewed by comparative morphology and chemotaxonomy to be resulted in the same species, E. ebracteolata.