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Family: Asteraceae (Aster / Sunflower family)
Mid-Atlantic bloom time: August - November
Common Ragweed is native to North America, but has become invasive in other parts of the world. Its wind-blown pollen is highly allergenic, especially in people susceptible to hay fever. It has compound leaflets, which helps distinguish it from other ragweeds in our area. Common Ragweed's seeds persist into winter and are a good source of food for birds.
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12 September 2024
Manassas National Battlefield Park, Manassas, VA 
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12 September 2024
Manassas National Battlefield Park, Manassas, VA (typical morphology) 
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13 September 2024
Leopold's Preserve, Haymarket, VA (pinnatifid leaf) 
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12 September 2024
Manassas National Battlefield Park, Manassas, VA (flower stalk) 
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13 September 2024
Leopold's Preserve, Haymarket, VA (flower stalk) 
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13 September 2024
Leopold's Preserve, Haymarket, VA (flower details) 
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