Follow your Health Department on  or 

Get aeroallergen readings for Lambsquarter.

Important genera:

None

Weed pollen is dominant in the Fall.

Goosefoot Family in Missouri:

• Winged Pigweed (Cycloloma)
• Fire Bush or Summer Cypress (Kochia)
• Goosefoot or Pigweed (Chenopodium)
• Orach (Atriplex)
• Russian Pigweed (Axyris)
• Poverty Weed (Monolepis)
• Bugseed (Corispermum)
• Sea Blite (Suaeda)
• Saltwort or Russian Thistle (Salsola)

Facts about the Goosefoot Family

• Lambsquarter or Pigweed (Chenopodium album) is the most commonly reported in the St. Louis area.

Goosefoot Family Allergenicity

• Lambsquarter blooms from May to October and produces abundant amounts of pollen.
• In areas where lambsquarter is abundant, it has been reported to cause hay fever symptoms.
• Russian thistle is considered to cause more cases of hayfever than any other member of the Chenopodiaceae family.