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Photographer: Paul Drobot
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Family Asteraceae
Ambrosia trifida L. var. trifida
giant ragweed, great ragweed, horse-cane
Ambrosia: Greek for "food of the gods"
trifida: three-cleft
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| Status: | Native - potentially invasive |
| Plant: | erect, annual, 2'-9' tall forb |
| Flower: | inflorescence of many, small, green, bead-like heads on 10" spikes; blooms Aug.-Sept. |
| Fruit: | seeds not on fluffy pappus |
| Leaf: | opposite, stalked, 3-5 palmately-divided lobes, upper leaves slightly winged |
| Habitat: | moist; disturbed sites |
| (Glossary) |
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