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rosinweed
Silphium integrifolium
In the United States:
Native
· also called wholeleaf rosinweed
Yellow sunflower-like composite flowers provide nectar and pollen to honey bees and other long-tongued bees from midsummer into early fall. A tall, sturdy prairie perennial that forms clumps via short rhizomes and tolerates a range of well-drained soils once established.
| Nectar | low |
|---|---|
| Pollen | low |
| Bloom (US) | July–September |
| Duration | ~2 months |
| Type | Perennial |
| Sun | full |
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