Swamp Thistle

Cirsium muticum Michx.

Aster family

Plant Type
Forb/herb
Life Cycle
Biennial
Mature Height
8.0 feet
Flower Color
White, Purple
Bloom Time
Early Summer, Mid Summer, Late Summer

Growing Conditions

Light

Shade Tolerance Intolerant

Ecosystem & Wildlife

Pollinators Native Bees; Bombus; Honey Bees; Beetles, Wasps, Flies; Moths; Butterflies; Monarchs; Larval Host (Moth)
Larval Host Calephelis mutica, Calephelis muticum

Native Range

  • USA:  Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode I., South Carolina, Tennessee, Texas, Vermont, Virginia, West Virginia, Wisconsin
  • CAN:  Newfoundland, Manitoba, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan

Regional Native Status: L48 (N), CAN (N), SPM (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.

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