Pholisma sonorae, commonly known as sand food, is one of the most bizarre wildflowers of North America. Growing out of sand dunes, the flower has a fleshy stem that extends two meters below the surface and emerging above as a small rounded or ovate form. If enough sand is blown away, the top of the stem may get exposed and the flower appears somewhat like a mushroom. During early spring, the round head bears small centimeter-wide flowers which are pink to purple in color with white margins.
The plant is rare and declining as its habitat of shifting dune sands is lost to development and damaged by off-road vehicle use.