Green male flowers are cup shaped and arranged in a spike. The tiny female flowers are in clusters between the leaves.
- Scientific Name: Ambrosia artemisiifolia
- Other Names: American Wormwood, Bitterweed, Blackweed, Carrot Weed, Common Ragweed, Hay Fever Weed
- Plant Height: 1 - 6 feet
- Flower Size: 0.125 inch
- Flower Color: Green
- Bloom Time: July, August, September, October, November
- Petal: Other
- Leaf: Deeply Divided, Lobed, Opposite
- Stem: Hairy, Red
- Environment: Dry, Sandy Soil, Sun
- Location: Shiloh Greenway