Centaurea diluta
Aiton
North African knapweed, Star thistle
Centaurea diluta is an annual herb that is not native to California.
There is a high risk of this plant becoming invasive in California according to Cal-IPC.
Bloom Period
one or more occurrenceswithin a 7.5-minute quadrangle
The blue points on the map indicate observations in Calflora.
Click on the map to view observations within a specific county.
Click on the map to view observations within a specific county.
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot
Loading images...
0%
[Cal-IPC] Europe native, Invasive: Centaurea diluta (North African knapweed) is an annual herb/ (family Asteraceae) with pink-purple flowers and lobed leaves found in the San Francisco Bay area and south coast ranges of California. It is native to southwestern Europe. It favors grasslands. Its hairy seeds are dispersed via wind. It was said to have been introduced to Great Britain as a contaminant in bird seed. Cal-IPC Rating: Watch (link added by Mary Ann Machi)
