Checklist » Asteraceae » Ambrosia trifida
Last updated 3/17/2019 by Dan Post.
Ambrosia trifida L.[FNA21, HC, HC2]
giant ragweed

Publication: Sp. Pl. 2: 987. 1753.

Origin: Introduced

Notes: Split in Kz99, lumped by Chambers and Sundberg (2000).

FNA21: "The name Ambrosia ×helenae Rouleau applies to hybrids between A. artemisiifolia and A. trifida."

WTU specimens on loan, so no specimen data available as of Aug. 2007.

References: (none)

Synonyms & Misapplied Names:
Ambrosia aptera DC.
Ambrosia trifida L. var. integrifolia (Muhl. ex Willd.) Torr. & A. Gray
Ambrosia trifida L. var. texana Scheele
Ambrosia trifida L. var. trifida[HC]