Bidens cernua (Nodding Bur-Marigold)
|Also known as:||Nodding Beggarticks|
|Habitat:||part shade, sun; swamps, fens, shores|
|Bloom season:||August - October|
|Plant height:||6 to 36 inches|
|Wetland Indicator Status:||GP: OBL MW: OBL NCNE: OBL|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
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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.
Leaves and stem:
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.
Nodding Bur Marigold is commonly found on the banks of ponds and lakes in late summer and early fall. It may form large colonies, but is often scattered.
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Where to buy native seed and plants ↓
- Nodding Bur Marigold plant
- more plants
- Nodding Bur Marigold along a creek
- a colony of Nodding Bur Marigold
Photos by K. Chayka taken at Long Lake and Rice Creek Regional Parks, Ramsey County, and Coon Rapids Dam Regional Park, Anoka County. Photos courtesy Peter M. Dziuk taken in Anoka County.
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