Wild celery, Cyclospermum leptophyllum, plant.

A small, green plant with reddish parts on it grows in dry, cracked soil under bright sunlight. Copyright information is at the bottom (Copyright 2007 The Regents of the University of California. All rights reserved.). Credit: Joseph M. DiTomaso, UC Agriculture and Natural Resources
Credit: Joseph M. DiTomaso, UC Agriculture and Natural Resources