Centaurea diffusa Lam.
Diffuse knapweed, White knapweed
2012 Jean Pawek
2014 Zoya Akulova
2001 CDFA
2020 Catherine Talbot
2002 Molly Elizabeth Bagley
2001 CDFA
Centaurea diffusa , a dicot, is a
perennial herb that is
not native to California.
Siskiyou
Del Norte
Modoc
Humboldt
Shasta
Lassen
Trinity
Plumas
Tehama
Butte
Mendocino
Glenn
Sierra
Yuba
Lake
Nevada
Colusa
Placer
Sutter
El Dorado
Yolo
Alpine
Napa
Sonoma
Sacramento
Mono
Amador
Solano
Calaveras
Tuolumne
San Joaquin
Marin
Contra Costa
Alameda
Santa Cruz
Mariposa
Madera
San Francisco
San Mateo
Merced
Fresno
Stanislaus
Santa Clara
Inyo
San Benito
Tulare
Kings
Monterey
San Bernardino
San Luis Obispo
Kern
Santa Barbara
Ventura
Los Angeles
Riverside
Orange
San Diego
Imperial
one or more occurrences within a 7.5-minute quadrangle
Bloom Period
More information about
Centaurea diffusa
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2012 Jean Pawek:!2014 Zoya Akulova:!2001 CDFA:!2020 Catherine Talbot:!2002 Molly Elizabeth Bagley:!2001 CDFA:!
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Suggested Citation
Calflora :
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals,
including the
Consortium of California Herbaria .
[web application]. 2022. Berkeley, California:
The Calflora Database
[a non-profit organization].
Available:
https://www.calflora.org/
(Accessed: 05/20/2022).