Category: Dichotomous Keys

A. Plant with cones – Plant 1
A¹. Plant without cones – B
………. B. Plant with flowers with petals – C
………. B¹. Plant with flowers without petals – Plant 4
……………….. C. Plant with white flower petals – Plant 2
……………….. C¹. Plant with purple flower petals – Plant 3

1A) Plant contains flowers…  go to 2

1B) Plant contains a cone…  Plant 1

2A) Plant has opposite leaf attachment… Go to 3

2B) Plant has whorled leaf attachment… Plant 3

3A Plant has liner leaf shape, with smooth leaves… Plant 2

3B Plant has elliptic leaf shape, with hairy leaves… Plant 4

A. Plant with needle-like leaves and woody cones = Plant 1

A’. Plant with broad leaves and flowers

B. Petals are large and purple = Plant 3

B’. Petals are small and white or yellow and appear in clusters

C. The stem, petiole, and blades appear hairy and the petals are small and yellow = Plant 4

C’. Stems and petioles appear to have barbs/spikes on them and the petals are white with the flower taking a bell shape = Plant 2

I typed my key on docs and have attached a screenshot below: