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Asteraceae
Ambrosia

not marked as a favorite taxon Ambrosia trifida Linnaeus var. texana Scheele. Common name: Texas Giant Ragweed. Phenology: Jul-Nov. Habitat: Floodplains, moist pastures; disturbed ground. Distribution: S. IL and MO south to MS, s. TX, and Mexico (CHH, COA, HGO, QRO, SON, TAM, VER).

Glossary (beta!)

Origin/Endemic status: Native

Taxonomy Comments: The distinction between var. trifida and var. texana (or at the specific rank A. trifida and A. aptera) warrants additional study.

Synonymy ⓘ: = C, F, G, GrPl, Il, NcTx, Tx; = Ambrosia aptera DC. — S; < Ambrosia trifida L. — Ar, FNA21, K4, Mex, Mo2, Ok, SE1. Basionym: Ambrosia trifida L. var. texana Scheele 1849

Links to other floras: < Ambrosia trifida - FNA21

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Wetland Indicator Status:

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

Heliophily ⓘ: 6

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image #1 of Ambrosia trifida var. texana© Aidan Campos source | Original Image ⭷
image #2 of Ambrosia trifida var. texana© Aidan Campos source | Original Image ⭷
image #3 of Ambrosia trifida var. texana© Sonnia Hill | Original Image ⭷
image #4 of Ambrosia trifida var. texana© Aidan Campos source | Original Image ⭷
image #5 of Ambrosia trifida var. texana© Aidan Campos source
image #6 of Ambrosia trifida var. texana© Aidan Campos source | Original Image ⭷

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Horticultural Information

No horticultural data found for this taxon.

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