Carpesium abrotanoides Linnaeus, Herbs, perennial. Stems 50-100 cm tall, stout, terete, leafy, pubescent apically. Lower cauline leaves thin, broadly elliptic to oblong, 20-28 * 8.5-15 cm, gland-dotted abaxially, shortly pubescent on both surfaces, narrowed at base into a broadly winged petiole, margin irregularly mucronulate-dentate, apex obtuse to acute; upper leaves sessile, oblong, gradually smaller, apex acute. Capitula many, 6-8 mm wide, sessile, spicately arranged. Involucre campanulate-globose; phyllaries 3-seriate, outer ones shortest, ovate, acuminate, shortly pubescent, scarious-leathery at base. Roadsides, grassy slopes, thickets, forest margins, streamsides; below 2800(-3400) m. China, Afghanistan, Bhutan, India, Japan, Korea, Myanmar, Nepal, Russia, Vietnam; SW Asia (Caucasus, Iran), Europe. Carabrol, ivaxillin and 11(13)-dehydroivaxillin were obtained from Carpesium abrotanoides, and the structures of carabrol and 11(13)-dehydroivaxillin were elucidated.