caltrop
— Noun
– English
~ a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits
caltrop
— Noun
– English
~ tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed
caltrop
— Noun
– English
~ Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America