However, molecular phylogenetic research has shown that while the monocots form a monophyletic group or clade (comprising all the descendants of a common ancestor), the dicots do not. Source: Internet
Historically, this feature was used to contrast the monocots with the dicotyledons or dicots which typically have two cotyledons; however modern research has shown that the dicots are not a natural group. Source: Internet
The dicotyledons, also known as dicots (or more rarely dicotyls citation ), were one of the two groups into which all the flowering plants or angiosperms were formerly divided. Source: Internet
They affect grasses and dicots alike. Source: Internet