Index / Search / Ambrosia psilostachya
§1 Plant
Ambrosia psilostachya DC.
vernacular Cuman ragweed — species · Asteraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual, Perennial
- Group
- Dicot
- Family
- Asteraceae Bercht. & J. Presl
- Genus
- Ambrosia
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 107 counties across 16 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 107 counties across 16 states/territories.
Alabama view state ↗ 3 N ▾
Arizona view state ↗ 8 N ▾
Arkansas view state ↗ 8 N ▾
Florida view state ↗ 10 N ▾
Georgia view state ↗ 3 N ▾
Louisiana view state ↗ 38 N ▾
- Acadia 22001
- Allen 22003
- Beauregard 22011
- Bienville 22013
- Bossier 22015
- Caddo 22017
- Calcasieu 22019
- Cameron 22023
- Claiborne 22027
- Concordia 22029
- De Soto 22031
- Evangeline 22039
- Grant 22043
- Iberia 22045
- Jackson 22049
- Jefferson 22051
- Lafayette 22055
- Lafourche 22057
- LaSalle 22059
- Livingston 22063
- Madison 22065
- Morehouse 22067
- Natchitoches 22069
- Orleans 22071
- Ouachita 22073
- Rapides 22079
- Red River 22081
- Richland 22083
- Sabine 22085
- St. John the Baptist 22095
- St. Mary 22101
- Tangipahoa 22105
- Tensas 22107
- Terrebonne 22109
- Vermilion 22113
- Vernon 22115
- Webster 22119
- Winn 22127
Maine view state ↗ 2 N ▾
Massachusetts view state ↗ 5 N ▾
Mississippi view state ↗ 1 N ▾
Montana view state ↗ 13 N ▾
New Hampshire view state ↗ 1 N ▾
New Jersey view state ↗ 1 N ▾
New York view state ↗ 9 N ▾
North Carolina view state ↗ 2 N ▾
Pennsylvania view state ↗ 1 N ▾
Vermont view state ↗ 2 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/AMPS ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3110686 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:45:41Z