Gamochaeta stagnalis, the desert cudweed, is a species of flowering plant in the family Asteraceae. It is native to Mexico, Guatemala, and the southwestern United States (California, Arizona, New Mexico).[3][4][5]

Gamochaeta stagnalis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Gamochaeta
Species:
G. stagnalis
Binomial name
Gamochaeta stagnalis
Synonyms[1][2]
Synonymy
  • Gnaphalium stagnale I.M. Johnst. 1923
  • Gamochaeta stagnale Anderb.
  • Gamochaeta falcata (Lam.) Cabrera
  • Gnaphalium falcatum Lam.
  • Gnaphalium heteroides Klatt
  • Gnaphalium purpureum var. falcatum (Lam.) Torr. & A.Gray
  • Gnaphalium stachydifolium var. falcatum (Lam.) Klatt

Gamochaeta stagnalis is an annual herb up to 35 cm (14 in) tall, producing a slender taproot. Leaves are up to 3 cm (1.2 in) long. The plant forms many small flower heads in tightly packed clumps. Each head contains 3–4 purple disc flowers but no ray flowers.[3][6]

Gamochaeta stagnalis is very similar to G. purpureum and some G. stagnalis specimens (especially from Arizona) have been misidentified as that species.[3]

References

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