BugwoodWiki Article

meadow knapweed
Centaurea moncktonii C. E. Britton[C. jacea X C. nigra]

Overview

Appearance
Centaurea moncktonii grows from a woody crown and it can reach up to 3.5 ft. (1.1 m) tall. It is native to Europe.
Foliage
The lower leaves are long-stalked, upper leaves have no stalk. Stems are many-branched and tipped by a solitary flower head up to 1 in. (2.5 cm) wide. The leaves are coarse and tough.
Flowers
Flower heads are pink to reddish purple, oval or almost globe-shaped. A key identifying feature is the fringed bracts on the flower head.
Fruit
Each seed head can produce 35-80 seeds. However, the seeds have no wind-dispersal mechanisms so few seeds move more than two feet from the parent plant without assistance.
Ecological Threat
Centaurea moncktonii out-competes grasses and other pasture species, causing productivity to decline. It is susceptible to herbicide treatments, but control efforts must persist for the long-term. It has the potential to invade native prairie. Centaurea moncktonii favors moist roadsides, sand or gravel bars, river banks, irrigated pastures, moist meadows, and forest openings.

Image Sets
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Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org

State Invasives List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Asterales
Family: Asteraceae
Genus: Centaurea

Other System Links

Plants: CEMO6
GRIN: 432926
ITIS: 36957

Categories

Category: Forbs/Herbs