Flower of X is always pedicellate, bracteate, zygomorphic, complete and epigynous.
Leaves of X have reticulate venation whereas those of Y have parallel venation.
X possesses tap root system whereas Y possesses adventitious or fibrous root system.
Y has tricarpellary, syncarpous, superior, trilocular ovary with axile placentation.
X and Y floral diagrams belong to Family Fabaceae and Family Liliaceae, respectively.
The flower of X, i.e., Fabaceae is pedicellate or sessile, bracteate or ebracteate, zygomorphic, complete and perigynous or occasionally hypogynous but not epigynous.