It is 18 cm tall. It produces spores. It grows in poor soil. It has a flat gametophyte.
I gave my students this multiple choice question: A plant grows in a damp, marshy area filled with nonvascular plants and seedless vascular plants. Which characteristic indicates the plant is classified as a seedless vascular plant?

Only one answer is correct among these 4 choices:
- It is 18 cm tall.
- It produces spores.
- It grows in poor soil.
- It has a flat gametophyte.

Could you tell me which one is correct?

It is 18 cm tall.