Pharmacognostical Studies on Korean 'Bang Poong'

방풍(防風)의 생약학적(生藥學的) 연구(硏究)

Botanical origins of three drugs, 'Won-bangpoong,' 'Shik-bangpoong' and 'Jaezoo-bangpoong' are not certain on the present market in Korea. These three were compared with two kinds of Chinese 'bangpoong' by histology and screening tests of roots. The original plant of 'Won-bangpoong' which is domestically used is Glehnia littoralis SCHMIDT et MIQUEL 'Shik-bangpoong' Peucedanum japonicum THUNBERG and 'Jaezoo-bangpoong' Seseli coreana KITAKAWA. Chinese "bangpoong" appears to be Siler divaricatum $B_{ENTHAM}$ et Hook, being different from others. "Shik-bangpoong" is easily distinguished from others two in external morphology. Thee kinds of available "Bangpoong" are different from one another in the internal structures and in the internal structures and in the screening tests by TLC.