Scientific Name: Bidens laevis
Distinguishing Characteristics:
Leaves:
- Coarsly serrated, opposite and sessile along central stem
- Larger specimens often have branching stems
- Stems may appear dark red to purple
Flowers:
- Yellow, showy, usually about 8 petals
- Each petal has a green bract about the same size below it
- Flowers have a long stalk originating from base of leaf
- Grows erect along shoreline, but can also form floating mats stretching out from the shoreline
- Growth habit similar to Polygonum and Hydrolea.