Nodding beggarticks

Bidens cernua

''Bidens cernua'' is a plant species in the sunflower family, widespread across much of Eurasia and North America. It is commonly called nodding beggarticks or nodding bur-marigold.
nodding beggarticks  Bidens cernua,Geotagged,Nodding beggarticks,Summer,United States

Appearance

''Bidens cernua'' sometimes grows as high as 400 cm tall in favorable conditions. The leaves are sessile with coarsely-toothed margins.
Nodding Beggar-ticks - Bidens cernua The flower heads tend to droop downwards as the plant ages, hence the common name.

Habitat: Pond edge/wetland
https://www.jungledragon.com/image/91799/nodding_beggar-ticks_-_bidens_cernua.html Bidens cernua,Geotagged,Nodding beggarticks,Summer,United States,beggar-ticks,beggartick,bidens,wildflower

Naming

The name ''"cernua"'' means "nodding", or "hanging". This refers to the fact that the flower heads are sometimes oriented horizontally or downwards.
Bidens cernua (Nodding Bur-Marigold) Growing in a partially filled drainage ditch in an old cranberry bed. The soil is saturated and peaty. Asteraceae,Bidens cernua,Geotagged,Nodding beggarticks,Summer,United States,wetland,yellow flower

Habitat

The plant does best in wet habitats such as swamps, marshes, and flood plains.

References:

Some text fragments are auto parsed from Wikipedia.

Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderAsterales
FamilyAsteraceae
GenusBidens
SpeciesB. cernua