found: Ind. nom. gen. (plant.)(Trapa Linnaeus, Trapaceae)
found: Engler Syl. Pflanz.:v. 2, p. a348 (Trapa, Trapaceae)
found: Terrell check. names 3,000 vasc. plants econ. import.(Trapa L. (Trapaceae))
found: Web. 3(Trapa) (water chestnut 1.a: plant of genus Trapa (esp. T. natans and T. bicornis) b.: the edible nutlike spiny-angled fruit of a water chestnut) (water caltrop 1: water chestnut)
found: Random House(water chestnut. 1. any aquatic plant of the genus Trapa, bearing an edible, nutlike fruit, esp. T. natans of the Old World. 2. the fruit itself. Also called water caltrop)
found: SPN(Trapa)
found: Hortus 3(Trapa L. Waternut, Water chestnut Trapaceae)
found: CAB thes.(Trapa Trapaceae)
found: Howes dict. useful and everyday plants(Water chestnut. Trapa spp., cult for ed. starchy seeds)
