Dichotomous keys


  • A: Plant with cones – Plant 1
  • A’: Plant without cones – B (Plants 2, 3, and 4)
    • B: Plant has no petals – Plant 4
    • B’: Plant has petals – C (Plants 2 and 3)
      • C: Plant has white flowers – Plant 2
      • C’: Plant doesn’t have white flowers – Plant 3


  1. Awesome key! I like how simple you kept it, and without much botany background, someone coudl easier use this to ID plants 1-4. The only thing I might change, would be using a specific colour, as in purple, instead of ‘not white flowers’. Great job!

  2. Anne Young

    I too like the straightforward setup of this key. However, I think using a color as the prime, I.e. purple is too limiting when using the key for a wider application.


  3. Allison Johnson

    The way you formatted this key makes it easy to understand and follow, specifically how you indicate the next letter to move to. I also thought it was unique that you focused on the large elements that are obvious and known to anyone, a cone is easy to spot, and petals are nicely separated by colors. I’d love to see more detailed keys that follow your format!

  4. Taylor Beaucage

    I like it. It’s easy to read, but I do have to agree about the color. I would add a little color to it even if it’s just a shade.

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