Index / Search / Centaurea diffusa
§1 Plant
Centaurea diffusa Lam.
vernacular diffuse knapweed — species · Asteraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual, Perennial
- Group
- Dicot
- Family
- Asteraceae Bercht. & J. Presl
- Genus
- Centaurea
§2a
Native status, by region
- CAN Canada Introduced
- L48 Lower 48 States Introduced
§2b
County-level range
· 256 counties across 21 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 256 counties across 21 states/territories.
Arizona view state ↗ 1 I ▾
California view state ↗ 29 I ▾
- Alpine 06003
- Amador 06005
- Butte 06007
- Calaveras 06009
- Colusa 06011
- Del Norte 06015
- El Dorado 06017
- Fresno 06019
- Glenn 06021
- Humboldt 06023
- Lake 06033
- Lassen 06035
- Marin 06041
- Mariposa 06043
- Mendocino 06045
- Modoc 06049
- Monterey 06053
- Nevada 06057
- Placer 06061
- Plumas 06063
- Sacramento 06067
- San Bernardino 06071
- Santa Clara 06085
- Shasta 06089
- Sierra 06091
- Siskiyou 06093
- Tehama 06103
- Trinity 06105
- Yolo 06113
Colorado view state ↗ 8 I ▾
Idaho view state ↗ 40 I ▾
- Ada 16001
- Adams 16003
- Bannock 16005
- Bear Lake 16007
- Benewah 16009
- Blaine 16013
- Boise 16015
- Bonner 16017
- Bonneville 16019
- Boundary 16021
- Butte 16023
- Camas 16025
- Canyon 16027
- Cassia 16031
- Clark 16033
- Clearwater 16035
- Custer 16037
- Elmore 16039
- Franklin 16041
- Fremont 16043
- Gem 16045
- Gooding 16047
- Idaho 16049
- Jefferson 16051
- Jerome 16053
- Kootenai 16055
- Latah 16057
- Lewis 16061
- Lincoln 16063
- Madison 16065
- Minidoka 16067
- Nez Perce 16069
- Oneida 16071
- Owyhee 16073
- Payette 16075
- Power 16077
- Shoshone 16079
- Twin Falls 16083
- Valley 16085
- Washington 16087
Illinois view state ↗ 4 I ▾
Indiana view state ↗ 1 I ▾
Kentucky view state ↗ 3 I ▾
Massachusetts view state ↗ 6 I ▾
Michigan view state ↗ 24 I ▾
- Alpena 26007
- Arenac 26011
- Bay 26017
- Benzie 26019
- Calhoun 26025
- Charlevoix 26029
- Cheboygan 26031
- Clare 26035
- Crawford 26039
- Emmet 26047
- Grand Traverse 26055
- Kalamazoo 26077
- Kalkaska 26079
- Lake 26085
- Leelanau 26089
- Menominee 26109
- Midland 26111
- Newaygo 26123
- Oakland 26125
- Otsego 26137
- Saginaw 26145
- Schoolcraft 26153
- Shiawassee 26155
- Tuscola 26157
Missouri view state ↗ 1 I ▾
Montana view state ↗ 39 I ▾
- Beaverhead 30001
- Big Horn 30003
- Blaine 30005
- Broadwater 30007
- Cascade 30013
- Deer Lodge 30023
- Fallon 30025
- Fergus 30027
- Flathead 30029
- Gallatin 30031
- Glacier 30035
- Golden Valley 30037
- Granite 30039
- Hill 30041
- Jefferson 30043
- Judith Basin 30045
- Lake 30047
- Lewis and Clark 30049
- Liberty 30051
- Lincoln 30053
- Madison 30057
- McCone 30055
- Meagher 30059
- Mineral 30061
- Missoula 30063
- Musselshell 30065
- Petroleum 30069
- Phillips 30071
- Powder River 30075
- Ravalli 30081
- Sanders 30089
- Silver Bow 30093
- Stillwater 30095
- Sweet Grass 30097
- Teton 30099
- Treasure 30103
- Valley 30105
- Wibaux 30109
- Yellowstone 30111
Nevada view state ↗ 5 I ▾
New Jersey view state ↗ 1 I ▾
New Mexico view state ↗ 3 I ▾
New York view state ↗ 1 I ▾
Oregon view state ↗ 30 I ▾
- Baker 41001
- Benton 41003
- Clackamas 41005
- Columbia 41009
- Crook 41013
- Curry 41015
- Deschutes 41017
- Douglas 41019
- Gilliam 41021
- Grant 41023
- Harney 41025
- Hood River 41027
- Jackson 41029
- Jefferson 41031
- Josephine 41033
- Klamath 41035
- Lake 41037
- Lane 41039
- Linn 41043
- Malheur 41045
- Marion 41047
- Morrow 41049
- Multnomah 41051
- Sherman 41055
- Umatilla 41059
- Union 41061
- Wallowa 41063
- Wasco 41065
- Washington 41067
- Wheeler 41069
Tennessee view state ↗ 1 I ▾
Washington view state ↗ 34 I ▾
- Adams 53001
- Asotin 53003
- Benton 53005
- Chelan 53007
- Columbia 53013
- Cowlitz 53015
- Douglas 53017
- Ferry 53019
- Franklin 53021
- Garfield 53023
- Grant 53025
- Island 53029
- King 53033
- Kitsap 53035
- Kittitas 53037
- Klickitat 53039
- Lewis 53041
- Lincoln 53043
- Mason 53045
- Okanogan 53047
- Pend Oreille 53051
- Pierce 53053
- San Juan 53055
- Skagit 53057
- Skamania 53059
- Snohomish 53061
- Spokane 53063
- Stevens 53065
- Thurston 53067
- Wahkiakum 53069
- Walla Walla 53071
- Whatcom 53073
- Whitman 53075
- Yakima 53077
Wisconsin view state ↗ 2 I ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/CEDI3 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3128962 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z