CALTROP

Definition of CALTROP

  1. (noun)tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed
  2. (noun)a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits
  3. (noun)Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America