Field guide plate · click to zoom
Giant Ragweed
Ambrosia trifida
In the United States:
Native
· also called great ragweed, buffalo weed
Wind-pollinated annual providing late-season pollen for honey bees preparing for winter, though pollen quality is often poor and nectar production negligible. Blooms over an extended period in late summer and fall on disturbed or riparian sites.
| Nectar | medium |
|---|---|
| Pollen | low |
| Bloom (US) | July–October |
| Type | Perennial |
| Sun | full |
Reported nearby
No reports nearby in the last 14 days.
Sign in to report this plant blooming nearby.