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)