Mohr's Rosinweed, Shaggy Rosinweed - Silphium mohrii
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Silphium mohrii - Mohr's Rosinweed, Shaggy Rosinweed. Description: Very hairy plant to 6 feet tall, found in only a few counties in Alabama, Georgia, and Tennessee.
Leave comments on Silphium mohrii at this link. | Distribution of Silphium mohrii in the United States and Canada:
Blue=Native; Grey=Introduced
Map from USDA Plants Database: USDA, NRCS. 2017. The PLANTS Database (http://plants.usda.gov, 16 Jan 2025). National Plant Data Team, Greensboro, NC 27401-4901 USA. Search Our Database: Enter any portion of the Scientific, Common Name, or both.
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| Site: Dade County, Ga Date: 2010-July-05 | Photographer: Gerald C. Williamson | Shaggy Rosinweed has around 14 pale yellow ray flowers, with numerous yellow disk flowers. | |
| Site: Dade County, GA Date: 2010-July-05 | Photographer: Gerald C Williamson Nikon D60 Tamron SP 90MM f/2.8 AF Macro | Shaggy Rosinweed has a very hairy stem and hairy, alternate leaves. The lower leaves are on long petioles. | | Click on the photo for a larger image
| Site: Dade County, GA Date: 2010-July-05 | Photographer: Gerald C Williamson Nikon D60 | Upper leaves are nearly sessile, usually with a very short petiole. | | Click on the photo for a larger image
| Site: Dade County, GA Date: 2010-July-05 | Photographer: Gerald C Williamson Nikon D60 | | | Click on the photo for a larger image
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