Dichotomous Key

Here is my Dichotomous Key for plants 1,2,3 and 4.

A. Plant has a flower – B

A’. Plant lacks a flower- Plant 1

                  B. Flowers have petals – C

                  B’. Flowers lack petals – Plant 4

                                        C. Petals are white in color – Plant 2

                                        C’. Petals are blue in color – Plant 3