"Wyoming’s Natural Resources" script
By Zola Ryan
Title: Special Roles of Forbs
Scene Narration
|
Wildflowers – sure they’re pretty, but what do they do? Unfortunately, we often ignore or downplay the role of forbs. |
|
But forbs are important members of their plant community. In fact, let me give you two examples of wildflowers that have a special role to play. |
|
This is lupine. It’s a member of the legume, or pea family. |
|
The roots of lupine have bumps or nodules on them, which house bacteria. These bacteria are capable of converting nitrogen from a non-usable form to a useful form. |
|
It’s like having a fertilizer factory right in the roots. This is obviously beneficial for the lupine, but can also help other plants growing nearby because the nitrogen content of the soil increases. |
|
This plant is squarestem phlox. We call it a cushion plant because of the way it grows like a big pincushion on the soil surface. |
|
Cushion plants often grow in windswept areas and where water is scarce. By staying low to the ground and having a very compact canopy, the plant is able to conserve water. |
|
But cushion plants also help conserve soil. This dense mat catches soil particles being carried in the wind. |
|
Next time you’re admiring a wildflower, realize that it’s not just a pretty face. It’s probably a valuable member of the plant community. From the University of Wyoming Cooperative Extension Service, I’m Zola Ryan |