Bidens polylepis
| Scientific Name: | Bidens polylepis |
| Synonym: | formerly part of Bidens aristosa |
| Family: | Asteraceae |
| Common Name: | Bur Marigold |
| Authority: | S. F. Blake |
| Etymology: | Bidens is Latin for "two rows of teeth" referring to the forked achenes; polylepis is Greek for "many scales" referring to the numerous phyllaries on the flower heads. |
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| # of Species in Genus in Illinois: | 13 |
| Duration: | Annual |
| Reproduction: | Monoecious |
| Flower Type: | Perfect |
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| Flower Color: | Yellow |
| Growth Habit: | Forb |
| Leaf Arrangement: | Alternate |
| Leaf Type: | Simple |
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| Leaf Margin: | Lobed |
| Leaf Toothing: | toothed |
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| Distribution: | BONAP Distribution Map |
| Status (State): | Not Listed |
| Status (Federal): | Not Listed |
| ID Tips: | Bidens can be very challenging to identify vegetatively. This species has more phyllaries than the similar Bidens aristosa. |
| Gee Whiz: | There is no C value or Wetness value because this species was not included in the 1997 Erigenia publication because it had not yet been described. |
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| More Info: | Illinois Wildflowers Search |