OED2 says only [Amer. Sp.], but has this lovely citation as the first print usage:
1894 Scribner's Mag. May 596/2 [The] ‘toloachi’, [and] the ‘mariguan’,..are used by
discarded women for the purpose of wreaking a terrible revenge upon recreant lovers.

edit: toloachi is evidently some variety of nightshade(!)