Leaves are narrow, up to 6 inches long and 1 inch wide, tapering to a pointed tip, hairless, with toothed edges and no leaf stalk, clasping the stem. Attachment is opposite, the bases of the leaf pairs nearly joined around the stem. Stems are hairless or sparsely hairy and may be green or reddish purple.
Lucas Land
Nodding Beggartick or Nodding Bur-marigold
Bidens cernua
Flowers are 1 to 2 inches across, 8 oval yellow ray flowers (petals) with a point or notch at the tip, and a dull orange center. The petals may not all be the same length and occasionally are absent altogether. Each flower is at the end of a stalk that arises from a leaf axil. One plant has a few to many flowers. The flower head nods down as it ages (and is where it gets its common name) so the seed head points down.