A. Plant leaves are needles … Plant 1
A’. Plant leaves round (blade edges varied) … Go to B
B. Plant flowers do not have petals and sepals … Plant 4
B’. Plant flowers have petals and sepals … Go to C
C. Flower petals are white … Plant 2
C’. Flower petals are purple … Plant 3
Hi Jayce,
I really liked your key. I like how you kept it simple and quick to use, without getting too bogged down in details. If I would change anything, I might make it even more concise at couplet B and just refer to petals instead of petals and sepals. That’s all.