ragweed

Photo by Richard Old | www.xidservices.com

ragweed

Ambrosia artemisiifolia

Weed Characteristics

Other Names: common ragweed, annual ragweed, low ragweed, Roman wormwood, short ragweed, small ragweed, wild tansy, bitterweed, hog-weed, mayweed

Leaf Type: Broadleaf

Flowers: Green

Leaves: Pointed leaves with irregular edges; some hair

Life Cycle: Summer annual

Plants are upright and bushy, growing to 3 ft tall. Leaves have long, prominent stems, are finely divided and are hairy on the upper surface. Seeds are displayed on spikes at the ends of branches. Seeds are viable in the soil for 5 years or more. Ragweed is a major cause of hayfever.