1) Dilleniid dicot genus 2) Genus armoracia 
(Horseradish) A. rusticana, the Horseradish, is a hardy, perennial herb, native to southeast Europe. It is such a zealous and stubborn plant that is has escaped from gardens and naturalized in some areas. Horseradish grows 2 to 2½ feet high at maturity and has large, coarse foliage resembling the common weed curly dock. The thick, deep root is e...
[n] - horseradish
genus Armoracia noun horseradish