What Plants Cause Hayfever

Grasses are the most common cause of allergy. Ragweed is a main cause of weed allergies. Other common sources of weed pollen include sagebrush, pigweed, lamb’s quarters and tumbleweed. Certain species of trees, including birch, cedar and oak, also produce highly allergenic pollen.

What are the worst plants for hayfever?

• Flowers/herbs. Amaranth (pigweed), chamomile, chrysanthemums, daisies, ordinary sunflowers.
• Shrubs/vines. Cypress, jasmine vine, juniper, wisteria.
• Trees. …
• Grasses. …
• Weeds.

Which plant is blamed for hay fever?

The tall goldenrod species of ragweed gets blamed for most of the pollen, but a primary cause of allergy symptoms is the tooth-leaved ragweed that lives low in the grass. Ragweed can be found in almost all states in the United States as well as in Canada. An accurate diagnosis is essential for managing symptoms.