Checklist » Asteraceae » Ambrosia chamissonis
Last updated 3/19/2019 by Dan Post.
Ambrosia chamissonis (Less.) Greene[FNA21, HC, HC2]
silver beachweed, beach bur, silver burr-ragweed

Publication: Man. Bot. San Francisco. 188. 1894.

Origin: Native

selected vouchers: WTU

Notes: Lumped in Jepson Manual & by Kartesz, split into var. chamissonis and var. bipinnatisecta by Chambers and Sundberg (2000). Chambers and Sundberg (2000) note intermediates between vars. on a few sheets.

References: (none)

Synonyms & Misapplied Names:
Ambrosia chamissonis (Less.) Greene var. bipinnatisecta (Less.) J.T. Howell[HC]
Ambrosia chamissonis (Less.) Greene var. chamissonis[HC]
Franseria chamissonis Less. ssp. bipinnatisecta (Less.) Wiggins & Stockw.
Franseria chamissonis Less. ssp. chamissonis
Franseria chamissonis Less. var. bipinnatisecta Less.
Franseria chamissonis Less. var. chamissonis