Stallergenes Greer

Allergenic Grasses of Wisconsin

Pollen allergens with hyperlinks are available in GREER's catalog. Click on the allergen that you are interested in and connect with that item in GREER's catalog.

To learn more about a particular pollen allergen, click on the PDF icon [PDF] of that allergen. These botanical profiles are available for download and include a detailed profile, genus/species and family, location(s) found in the United States and photograph(s) of the pollen.

Marked Cells () signify taxon present in area. Unmarked Cells signify taxon absent in area or unconfirmed.

1 Cross-reactive species grouped together in colored cells
2 Italicized species demonstrate only moderate cross-reactivity with other(s) in the group
3 This species is insect-pollinated

Most grasses pollinate in the summer.

Northern Lakes
and Forests
North Central Hardwood Forests Driftless Area
Southeastern Wisconsin
Till Plains
  Superior Rhinelander Marinette   Wausau Stevens Point   Eau Claire La Crosse   Green Bay Oshkosh Madison Milwaukee
Cross-Reactive Grasses 1                            
Blue, Canada   x x     x     x   x   x x
16: Blue, Kentucky/June : Click for botanical profile x x x     x   x x   x     x
8: Brome, Smooth x x x   x x   x x   x   x x
9: Canarygrass, Reed : Click for botanical profile x x x   x x   x x   x   x x
11: Couch/Quack 2 x x x   x x   x x   x   x x
14: Meadow Fescue : Click for botanical profile     x           x   x   x x
20: Orchard : Click for botanical profile x x x   x x     x   x x x x
25: Rye, Italian                 x       x x
24: Rye, Perennial         x x     x   x x x x
27: Sweet Vernal : Click for botanical profile                           x
186: Wheatgrass, Western 2 x   x     x   x     x x x x
Other Grasses                            
15: Johnson : Click for botanical profile                         x x

Data obtained from USDA Plants Database.

For current pollen counts visit or enter a zip code below.


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