Get aeroallergen readings for Grass aeroallergens.

Important genera:

None

Grass pollen is dominant in the summer.

Some grasses in Missouri:

• Orchard Grasses (Dactylis)
• Blue or June Grasses (Poa)
• Fescues (Festuca)
• Brome (Bromus)
• Redtop (Agrostis)
• Rye (Secale, Lolium)
• Timothy (Phleum)
• Grama (Bouteloua)
• Sorghum (Sorghum)
• Crab Grass (Digitaria)

Facts about grasses

• Grasses are a large and diverse plant with 8000 species in 500 genera found all over the world. 1200 species are native to North America.
• Bamboo, wheat, and corn belong to the grass family.
• Grasses do have flowers, but they are small and lack showy petals.
• Most grasses depend on wind to pollinate. Many species shed their pollen in early morning.
• Some grass species, like wheat, have become self-pollinated.

Grass Allergenicity

• Orchard grass season is from May to June.
• The Blue or June grasses season is from May to July.
• Fescues season is from May to July.
• Brome season is from May to August.
• Redtop season is from May to September.
• Rye season is from June to July.
• Timothy season is from June to July.
• Grama season is from July to August.
• Sorghum season is from July to September.
• Crab season is from July to November.