
Gamochaeta stagnalis

Gamochaeta stagnalis, the Desert cudweed, is a species of flowering plant in the sunflower family. It is native to Mexico, Guatemala, and the southwestern United States (California, Arizona, New Mexico).
"Gamochaeta stagnalis" is an annual herb up to tall, producing a slender taproot. Leaves are up to long. The plant forms many small flower heads in tightly packed clumps. Each head contains 3–4 purple disc flowers but no ray flowers.
"Gamochaeta stagnalis" is very similar to "G. purpureum" and some "G. stagnalis" specimens (especially from Arizona) have been misidentified as that species.