knapweed

Meadow thistle relative

Knapweed is a wildflower in the daisy family, with thistle-like purple or pink flower heads.

Several species grow as roadside weeds across Europe and North America, where some are considered invasive.

The name comes from the knob-shaped buds that appear before flowering: The meadow was dotted with knapweed and clover.

botany

asteraceae

Daisy plant family

biennial · seedhead · foliage · taproot · rosette · floret · bract · composite · forb · wildflower

invasive

non-native

Not indigenous here

colonize · outcompete · monoculture · displacement · encroachment · aggressive · eradication · biocontrol · management · herbicide

meadow

wildflower

Uncultivated flowering plant

grassland · heathland · moorland · steppe · roadside · field · hedgerow · marguerite · poppy · clover

purple

violet

Small five-petaled wildflower

mauve · cornflower-blue · fringed · spiny · showy · ornamental

hardy

resilient

Able to recover quickly

robust · persistent · tough · survivor · vigorous · self-seeding · prolific · low-maintenance

Family

weed, hardheads

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G