Helianthus smithiorum Heiser. Common name: Smith's Sunflower. Phenology: Aug-Sep. Habitat: Dry forests and woodlands. Distribution: Known from n. GA, e. AL, and se. TN.
ID notes: H. smithiorum has small heads (like H. microcephalus, H. laevigatus, H. schweinitzii), the leaves narrowly lanceolate and subsessile (like H. schweinitzii or H. laevigatus), the leaves resin-dotted below (like H. microcephalus), but nearly glabrous. It may be a hybrid derivative of H. microcephalus and H. strumosus.
Origin/Endemic status: Endemic
Taxonomy Comments: The epithet must be corrected to "smithiorum", as Heiser intended it to commemorate two Smiths.
Synonymy ⓘ: = Helianthus smithii Heiser — FNA21, K4, Tn, correctable error; = n/a — RAB; < Helianthus microcephalus Torr. & A.Gray — C, SE1. Basionym: Helianthus smithiorum Heiser 1964
Links to other floras: = Helianthus smithii - FNA21
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Wetland Indicator Status:
- Eastern Mountains and Piedmont: UPL (taxonomic split from wetland indicator species)
- Great Plains: UPL (taxonomic split from wetland indicator species)
- Midwest: FACU (taxonomic split from wetland indicator species)
- Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)
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© Alan Cressler: Helianthus smithii, Pine Log Wildlife Management Area, Bartow County, Georgia 3 by Alan Cressler source | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷Feedback
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Horticultural Information
No horticultural data found for this taxon.