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White Snakeroot
Ageratina altissima
In the United States:
Native
Late-summer to fall blooming woodland perennial whose small white flower clusters provide nectar and pollen to honey bees when few other sources remain available. Spreads by rhizomes and tolerates shade.
| Nectar | medium |
|---|---|
| Pollen | low |
| Bloom (US) | July–October |
| Type | Perennial |
| Sun | partial |
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