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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 [
] 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.
| Plateau | RM Border | Chihuahua Desert | High Plains | ||||||||||
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| Cross-Reactive Weeds | |||||||||||||
| 35: Dock, Yellow : |
x | x | x | x | |||||||||
| 64: Sorrel, Sheep/Red : |
x | x | |||||||||||
| 44: Marsh Elder, Burweed : |
x | x | x | ||||||||||
| Poverty Weed | x | x | |||||||||||
| 49: Palmer's Amaranth | x | x | x | x | x | x | |||||||
| 32: Careless Weed | x | x | x | x | |||||||||
| 52: Pigweed, Rough/Redroot : |
x | x | x | ||||||||||
| 185: Ragweed, False : |
x | x | x | x | x | x | x | ||||||
| 55: Ragweed, Giant : |
x | ||||||||||||
| 56: Ragweed, Short : |
x | x | x | x | x | x | |||||||
| 58: Ragweed, Western : |
x | x | x | x | x | x | x | x | x | ||||
| 61: Sagebrush, Common : |
x | x | x | x | x | ||||||||
| 191: Sagebrush, Pasture : |
x | x | x | x | x | x | |||||||
| 48: Sagebrush, Prairie : |
x | x | x | x | x | x | x | x | |||||
| Sagebrush, Other (Sand) | x | x | x | x | x | x | x | x | x | x | |||
| 199: Saltbush, Annual | x | ||||||||||||
| Shadscale | x | x | x | ||||||||||
| 206: Wingscale : |
x | x | x | x | x | x | x | x | x | x | |||
| Other Weeds | |||||||||||||
| 225: Baccharis : |
x | x | x | x | x | x | x | x | |||||
| 33: Cocklebur : |
x | x | x | x | x | x | x | x | |||||
| 42: Firebush/Kochia : |
x | x | x | x | x | ||||||||
| 37: Goldenrod 3 : |
x | x | x | x | x | x | x | x | |||||
| 43: Lamb's Quarter : |
x | x | x | x | x | ||||||||
| 36: Nettle : |
x | x | x | x | x | ||||||||
| 54: Plantain, English : |
x | x | x | ||||||||||
| 59: Russian Thistle : |
x | x | x | x | x | x | x | x | x | x | |||
| Other Plants | |||||||||||||
| 145: Alfalfa 3 : |
x | x | x | x | x | x | x | x | x | ||||
| 158: Daisy, Ox-Eye 3 : |
x | x | |||||||||||
| 164: Sunflower 3 : |
x | x | x | x | x | x | x | x | |||||
Data obtained from USDA Plants Database.
For current pollen counts visit www.pollen.com or enter a zip code below.
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