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Asteraceae
Parthenium

not marked as a favorite taxon Parthenium hysterophorus Linnaeus. Common name: Santa Maria, Feverfew, Gajarghass, Congress Grass. Phenology: Jul-Nov. Habitat: Disturbed areas. Distribution: Native of tropical America, including the West Indies.

Glossary (beta!)

Section: Parthenium.

Origin/Endemic status: Neotropics

Other Comments: Virginia specimens were corrected to Tanacetum parthenium (G. Fleming, pers. comm., 2024)

Synonymy ⓘ: = Ar, Bah, C, F, Fl7, FNA21, G, GrPl, Il, K4, Mi, Mo2, NcTx, NE, NY, Oh3, Pa, S, SE1, Tat, Tx, WH3, Rollins (1950); = n/a — RAB. Basionym: Parthenium hysterophorus L. 1753

Links to other floras: = Parthenium hysterophorus - FNA21

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC
  • Eastern Mountains and Piedmont: FAC
  • Great Plains: FAC
  • Midwest: FAC
  • Northcentral & Northeast: UPL

Heliophily ⓘ: 9

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image #1 of Parthenium hysterophorus© Aidan Campos source | Original Image ⭷
image #2 of Parthenium hysterophorus© Keith Bradley | Original Image ⭷
image #3 of Parthenium hysterophorus© Aidan Campos source | Original Image ⭷
image #5 of Parthenium hysterophorus© Bruce A. Sorrie | Original Image ⭷

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Horticultural Information

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