1967 年 87 巻 12 号 p. 1478-1480
Examinations were made on the insect metamorphosis activity and ecdysterone content of Formosan Achyranthes obtusifolia LAM. (Japanese name "Shima-inokozuchi"), A. rubrofusca WIGHT (Japanese name "Murasaki-inokozuchi"), and A. longifolia MAKIMO (Japanese name"Yanagi-inokozuchi"). Ecdysterone was isolated from the root of A. rubrofusca and from the total herb of A. longifolia, and identified. A crystalline component of m.p. 225∼230° (decomp.) was isolated from the root of A. rubrofusca.