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.
C Value:
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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 Shape Term:
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.
Humor:
More Info:Illinois Wildflowers Search