Coreopsis palmata (Prairie Coreopsis)
|Also known as:||Stiff Tickseed, Finger Coreopsis|
|Habitat:||sun; fields, prairies|
|Bloom season:||June - August|
|Plant height:||1 to 3 feet|
|Wetland Indicator Status:||none|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
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Yellow flower 1½ to 2 inches across with 8 to 12 rays (petals); the center is yellow and turns brown with maturity. There are 2 noticeable impressed veins that run the length of each ray, and there may be a few brownish spots on some. The ray tips are mostly smooth but may have small notches.
Leaves and stems:
Leaves are 2 to 4 inches long, stalkless, and deeply divided into 3 lobes. The center lobe the longest and sometimes has 1 or 2 additional small lobes. The center vein in each lobe is usually light green; each runs all the way down to the leaf base where it attaches to the stem. Stems are mostly hairless, except at the leaf nodes.
The center disk forms a seed head; seeds are oblong-elliptic, about ¼ inch long, and mostly brown.
The palmately lobed leaves make this species easy to identify.
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Photos by K. Chayka taken at Long Lake Regional Park, Ramsey County. Other photos courtesy Peter M. Dziuk.
Have you seen this plant in Minnesota, or have any other comments about it?