Dichotomous Key
1A: Has needles; woody; cones present….Plant 1 1B: No needles present….Go to 2 2A: Has flowers with petals….Go to 3 2B: Petals absent; incomplete flower….Plant 4 3A: 4 petals, white; gamosepalous; inferior ovary….Plant 2 3B: 6 petals, purple; polysepalous; superior ovary….Plant 3