(From against, and monk's-hood,) so called because it is said to counteract the effects of the thora. Antherea, aconi-tum sa/utiferum, wholesome and yellow helmet flower, wholesome wolf's bane, monk's hood, aconilum anthora Lin. Sp. Pi. 751.
This plant is distinguished from the poisonous aconites, by the leaves not being glossy, by their being cut entirely down to the foot stalk, and by the segments being very narrow, and of nearly the same width from end to end. It is a native of the Alps and Pyrenees, from whence we have the dried roots, which are of an irregular roundish shape, a little oblong, brown on the outside, white within, hard to break, but not tough; to the taste it is acrid and bitter, to the "smell it is faint; if chewed, it a little constringes the fauces, and a nauseous sweetness is perceived. In doses of 3 i it is cathartic and anthelmintic.