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Annual Bursage, Burr Ragweed

Ambrosia acanthicarpa Hook.

Asteraceae (Sunflower Family)

▲ ▼ young plants

▲▼young plants

▲young plant

▲▼mature plants

▲▼mature plants

▲▼close-up of leaves

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Ambrosia acanthicarpa Hook., Annual Bursage: (Bayer Code:  FRSAC; US Code AMAC2)

·         A summer annual weed in the same genus as common ragweed, but found more in the western part of the Midwest

·         Leaves often have more grayish hairs than annual ragweed, and are stiffer in texture, plus have a medicinal or bad odor if bruised

·         Inflorescence is similar to common ragweed, but is followed by large, burred seeds, with spiny burs

·         Found in disturbed, sandy, dry soils

 

 

 

 

 

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Updated 19 January 2019