From the aerial parts of the medicinal plant Artemisia ludoviciana spp
. mexicana were isolated douglanin, ludovicin A, 1alpha,3alpha-dihydro
xyarbusculin B, santamarin, arglanin, artemorin, chrysartemin B, armef
olin, ridentin, the new eudesmanolide 3alpha-hydroxyreynosin, and the
flavonoids eupatilin and jaceosidin.