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
· 51 counties across 6 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 51 counties across 6 states/territories.
Arizona view state ↗ 1 I ▾
Kentucky view state ↗ 3 I ▾
Massachusetts view state ↗ 6 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
New Jersey view state ↗ 1 I ▾
New York view state ↗ 1 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 2026-05-26T05:06:36Z