California fan palm
The only native palm species to California, W. filifera is found most often in the southern Sonoran Desert of the state, with some extending up into the Mojave. These palms are found only near locations with ground water that reaches near the surface, or actively flows above ground.
Due to increased human water consumption, these trees face a considerable threat. Being as dependent on the level of the water-table as they are, reducing the aquifer levels in their home ranges could have serious, potentially disastrous results for the species.