A. Woody – B
A-1. Herbaceous – C
B. Plant has needles – Plant #1
B-1. Plant does not have needles –
C. Simple leaf – D
C-1. Compound leaf –
D. White petaled flowers – Plant #2
D-1. Violet petaled flowers – Plant #3
D-2. Yellow catkin – Plant #4
Dichotomous Key for 4 plants
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Hello there! I used your key for the plant practice ID. I was able to work my way through it. I may have opted to use sub-points rather than jumping to another letter as it took me a little bit to figure that out (e.g., putting B as sub points under A). Otherwise was able to follow it!