French Tamarisk

Even botanists have a hard time distinguishing the species of this genus. And most tamarisks naturalized in the US are hybrids.
...Read Morer /> According to BONAP, this species is naturalized in 13 states and invasive in five. http://bonap.net/MapGallery/County/Tamarix gallica.png

Six western states have declared this species a noxious weed or invasive species.

Like other Tamarix species, it's an invasive pest species on the shores of rivers, lakes, and irrigation canals in arid regions of the US. There it forms impenetrable thickets, replaces native flora, lowers water tables, and increases the salt content of the soil.

French Tamarisk Tamarix gallica is naturalized in Texas and other States and is considered an invasive noxious plant in Texas.