This Invasive Tree That Soaks Up Water Helps and Hurts Endangered Species in Southern Utah

It is common to see tamarisk trees, otherwise known as salt cedar, growing in the southern half of Utah. If you see this tree springing up in vacant lots or on the side of the road, pull it up as it needs to go. 

Imported From Africa and Drives Out Native Plants 

The tamarisk was brought to North America to try and stabilize the land and keep it from eroding. It has a deep tap root that unfortunately uses a lot of water. Where it grows it leaves the land saltier around it. 

It also pushes out native plants and endangers local fish. Because it crowds the river banks like the Virgin River in Southern Utah, it makes the water deeper and cooler. This makes it hard on the Woundfin Minnow and Virgin River Chub.  

Not Every Species is Unhappy with the Tamarisk 

Ironically, it is also helpful for a struggling bird species. The Southwestern Willow Flycatchers is a small bird that thrives in the tamarisk trees. This has made it harder to get rid of the trees entirely. 

Currently land managers try to leave the trees alone when this bird is laying its nest. They are also strategic in where plants are left standing to help the birds and discourage the growth around water where other endangered species live. 

Read More: Experts Say Utahns Should HUNT & EAT This Invasive Frog

Another way of controlling the growth of tamarisk is the introduction of the leaf beetle that feeds on the tree’s leaves. This is why many of the tamarisks turn brown in the summer. Still, by removing this invasive plant, the native foliage can take its place.