Bidens cernua


Scientific Name:Bidens cernua
Synonym:
Family:Asteraceae
Common Name:Nodding Bur Marigold
Authority: Linnaeus
Etymology:Bidens is Latin for "two rows of teeth" referring tho the forked awns on the achenes; cernua is Latin for "nodding" referring to the drooping flower heads after flowering.
C Value:2
Wetness:OBL
# of Species in  
Genus in Illinois:
13
Duration:Annual
Reproduction:Monoecious
Flower Type:Perfect
Flower Shape:
Flower # of Parts:
Flower Color:Yellow
Growth Habit:Forb
Leaf Arrangement:Opposite
Leaf Type:Simple
Leaf Shape:
Leaf Shape Term:
Leaf Margin:Entire
Leaf Toothing:
Stem Surface:
Trunk/Bark:
Armature:
Twig Characteristics:
Habitat:
Distribution:BONAP Distribution Map
Status (State):Not Listed
Status (Federal):Not Listed
ID Tips:This species has connate leaves that are often perfoliate.
Gee Whiz:Also called Beggar's Ticks because the achenes have forked awns that are barbed.
Humor:
More Info:Illinois Wildflowers Search