| Wildflower Information for Ambrosia trifida | |
|---|---|
| Common name(s) | Giant ragweed |
| Family | Asteraceae (Aster family) |
| Flowers | color: green petals: irregular |
| Leaves | opposite |
| Lifecycle | annual |
| Peak bloom period | August to September |
| Origin | native |
Wildflowers of the National Capital Region
Discovering wildflowers in Maryland, Washington D.C., and Northern Virginia
Ambrosia trifida
Common name: Giant ragweed