Brown Knapweed

Brown KnapweedThis large family (Asteraceae), commonly called the Aster Family, consists of 1,314 genera and 21,000 species of herbs, shrubs, climbers and a few trees is found chiefly in temperate and subtropical regions.  The plants are of value to man as ornamentals; a few are insecticides and fish poisons. The genus Centaurea means “of Centaur” who was famous for his gift of healing. Brown Knapweed is a weed of disturbed ground or fields and roadsides. Another member of this genus (Centaurea) is the well known Batchelor’s Buttons or Cornflower (Centaurea cyanus).  This plant is edible and has been reported to have medicinal qualities.

OtherCommonName:

Star-thistle

ScientificName:

Centaurea jacea

Community:

Edge

PlantStatus:

Naturalized from Europe

LifeSpan:

Perennial

PlantHeight:

8 to 32 inches

FruitingTime:

July to October

Distribution:

Southern Canada to West Virginia ~ Northern New Jersey and Cape May and Ocean Counties

FloweringTime:

Late June to September

IdentifyingCharacteristics:

Leaves entire or toothed, basal ones broadly elliptic, upper ones have leaf stalk ~ Heads numerous branches, tan to dark brown ~ marginal flowers, maroon