Dichotomous Key

A. Plant produces fruit – plant 1

    A1.  Plant does not produce fruit – go to B

    B. Plant has complete flower – go to C

    B1. Plant has incomplete flower – plant 4

    C. Plant has white, four-petal flower – plant 2

    C1. Plant has purple, five-petal flowers – plant 3

    One comment

    1. Kathleen Eagle

      HI Sarah
      This was pretty easy to follow and was succinct. Each step led to choices that split the remaining plants down step by step. I think one would have to know if the plant produced fruit… perhaps you meant cones since plant 1 had cones and the others do not? Plant 1 is a cone bearing (not seed bearing) plant. But going just by these photos we can see it’s the only one with a cone. So If A1 said plants without cones, that would leave all the rest. Then the next choice is complete or incomplete flower, and the one that doesn’t seem to have the petals and such you would call incomplete which brought me to 4, which followed. I wasn’t totally able to see that the white one had both anthers and female flower parts, but seems to, so I considered it complete. From there it was easy to use the color of the petals which was very obvious.

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