Silphium integrifolium Michaux var. integrifolium . Prairie Rosinweed. Phen: Jul-Sep. Hab: Prairies, calcareous glades and barrens. Dist: MI, WI, and se. SD south to c. TN, se. AL, s. MS, s. LA, and OK.
Origin/Endemic status: Native
Synonymy: < Silphium integrifolium Michx. – Mi, Tn; > Silphium integrifolium Michx. var. deamii L.M.Perry – F, Il, K1, Perry (1937); < Silphium integrifolium Michx. var. integrifolium – Ar, C, FNA21, G, GrPl, K3, K4, SE1; > Silphium integrifolium Michx. var. integrifolium – Il, K1, Perry (1937); >< Silphium integrifolium Michx. var. integrifolium – F
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FAC (name change)
- Eastern Mountains and Piedmont: FAC (name change)
- Great Plains: FAC (name change)
- Midwest: FACU (name change)
- Northcentral & Northeast: FAC (name change)
Heliophily: 9
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© Alan Weakley source | Original Image ⭷Feedback
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