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Silphium pinnatifidum Elliott. Common name: Tansy Rosinweed. Phenology: Jul-Sep. Habitat: Limestone glades and woodlands, blackland prairies. Distribution: OH and IN south to nw. GA, AL, and ne. MS.

Origin/Endemic status: Native

Synonymy ⓘ: = Il, S, SE1, Tn; = Silphium terebinthinaceum Jacq. var. pinnatifidum (Elliott) A.Gray — F, FNA21, K4, Perry (1937); > Silphium chickamaugense Canby; ~ Silphium lanceolatum Canby non Nutt.; < Silphium terebinthinaceum Jacq. — C, G. Basionym: Silphium pinnatifidum Elliott 1824 [1823]

Links to other floras: = Silphium terebinthinaceum var. pinnatifidum - FNA21

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACU (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)
  • Midwest: FAC (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: FAC (taxonomic split from wetland indicator species)

Heliophily ⓘ: 9

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image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Matt Berger, some rights reserved (CC BY), uploaded by Matt Berger source CC-BY | Original Image ⭷
image of plant© Matt Berger, some rights reserved (CC BY), uploaded by Matt Berger source CC-BY | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Joey Shaw source | Original Image ⭷
image of plant© Stephan Eselgroth, some rights reserved (CC BY-SA), uploaded by Stephan Eselgroth source CC-BY-SA | Original Image ⭷

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Horticultural Information

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