- any of several perennial leguminous plants of the genera Oxytropis and Astragalus, found in western parts of North America, containing neurotoxins which cause loco disease in horses, cattle, and sheep
WordReference Random House Unabridged Dictionary of American English © 2026
cra•zy•weed
(krā′zē wēd′),USA pronunciation n.
WordReference Random House Unabridged Dictionary of American English © 2026- Plant Biologylocoweed.
- crazy + weed1 1870–75
lo•co•weed
(lō′kō wēd′),USA pronunciation n.
- Plant Biologyany of various leguminous plants of the genera Astragalus and Oxytropis, of the southwestern U.S. and Mexico, causing locoism in sheep, horses, etc.
- loco + weed1 1875–80, American.
Collins Concise English Dictionary © HarperCollins Publishers::
locoweed /ˈləʊkəʊˌwiːd/, crazyweed /ˈkreɪzɪˌwiːd/ n
'crazyweed' also found in these entries (note: many are not synonyms or translations):