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Bitterweed, Bitter Sneezeweed, Yellowdicks - Helenium amarum


Family: Asteraceae - Aster family Genus Common Name: Sneezeweed Native Status: NativeDicot Annual Herb
Helenium amarum - Bitterweed, Bitter Sneezeweed, Yellowdicks. Common weed found in meadows, along roadsides, and other disturbed areas. Some authorities consider it to be weedy or invasive. If cows eat them their milk will have a bitter taste. This plant is a native of the United States.

Found in:
AL, AR, CA, CT, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NE, OH, OK, PA, SC, TN, TX, VA, WI

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Helenium amarum

Distribution of Helenium amarum in the United States and Canada:
Map unavailable.
Map courtesy of The Biota of North America Program.
Map color key

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Site: Walker County, Ga Date: 2009-August-07Photographer: Gerald C Williamson
Nikon D60
Bitterweed's yellow blossom is a typical aster with a cluster of disk flowers and separate ray flowers. H. amarum typically has five to ten ray flowers hanging down from the dome-shaped disk.

This is var. amarum, which is the more widespread of the two Helenium amarum varieties. The other variety, var badium has a brown central disk, and is found only in Oklahoma, Texas, and South Carolina.
Helenium amarum

Site: Walker County, GA Date: 2009-August-07Photographer: Gerald C Williamson
Nikon D60
Click on the photo for a larger image
Helenium amarum

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Helenium amarum initially published on USWildflowers.com 2009-08-08; Updated 2017-03-02

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All content except USDA Plants Database map Copyright Gerald C. Williamson 2024
Photographs Copyright owned by the named photographer



Code Update 20230302