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Wingstem, Yellow Ironweed - Verbesina alternifolia


Family: Asteraceae Aster family Genus Common Name: Crownbeard Native Status: Native
Verbesina alternifolia - Wingstem, Yellow Ironweed. This is a tall, yellow-blossomed plant found throughout most of the midwest and east outside of New England. It is listed as Threatened in New York.

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Distribution of Verbesina alternifolia in the United States and Canada:
USDA Plants Distribution Map temporarily unavailable.
Blue=Native; Grey=Introduced

Map from USDA Plants Database:
USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 17 Jan 2017). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

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Site: Reflection Riding, Hamilton County, TN Date: 2010-September-06Photographer: Gerald C. Williamson
Nikon D60
Tamron SP 90MM f/2.8 AF Macro
Wingstem has from 2 to 10 reflexed yellow ray flowers, and the disk flowers are in a loose spherical shape.
Verbesina alternifolia

Site: Reflection Riding, Hamilton County, TN Date: 2010-September-06Photographer: Gerald C Williamson
Nikon D60
The inflorescence is at the top of the stem, perhaps as much as 9 or 10 feet above the ground, which is why this photo is from below.
Click on the photo for a larger image
Verbesina alternifolia

Site: Reflection Riding, Hamilton County, TN Date: 2010-September-06Photographer: Gerald C Williamson
Nikon D60
Verbesina alternifolia gets the species epithet from the long, rough-feeling, lanceolate alternating leaves. A similar species with opposite leaves is Verbesina occidentalis - Yellow Crownbeard.
Click on the photo for a larger image
Verbesina alternifolia

Site: Reflection Riding, Hamilton County, TN Date: 2010-September-06Photographer: Gerald C Williamson
Nikon D60
The lanceolate leaves of Wingstem are on petioles which extend down the stem as wings, giving the plant its Wingstem common name.
Click on the photo for a larger image
Verbesina alternifolia

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All content except USDA Plants Database map Copyright Gerald C. Williamson 2017
Photographs Copyrighted by the named photographer