Question

The name papilionaceae and cruciferae are based on?

Answer 1

Papilionaceae and Cruciferae are two different plant families that are classified on the basis of their corolla. The family of a plant can be determined by observing various aspects of the plant like the shape of the flower and the presence of nodes on the plant.

Complete answer:
Both of the families Papillionaceae and Cruciferae are named in this way due to the characteristics of their corolla. The corolla or the petals are the portions of the plant that is present behind the calyx of the plant. This whorl is usually colored.
Papilionaceae: Another name for this family is Fabaceae. This is the pea family. The corolla of this family resembles a butterfly because of its arrangement. The name ‘papilio’ is Latin for butterfly. Therefore the name of the family is based on the shape of the corolla.
Cruciferae: Cruciform refers to a shape that is like a cross. This is the cabbage family. The flowers of this family all have four flowers that are positioned in a cross-like formation. The petals are positioned at right angles to each other which is what gives them this shape.

Therefore, the answer to this question is the corolla.

Note:
Both of these plant families are named on the basis of their corolla. Papilionaceae is named due to the butterfly-like appearance of the corolla. Cruciferae has its name because of the cross appearance of the petals. All plant families have one definite trait that they share. This trait is found in all members of that family.