REPORT

Invasive Plant Details

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Common Burdock

Latin Name: Arctium minus

Priority Ranking: Medium Priority

Identification

Flower: Purple, thistle-like flower heads that develop into bur-like seed pods, blooming from midsummer to fall.

Leaves: Large, heart-shaped, dark green leaves with whitish undersides.

Stems: Erect, thick, and branching, growing up to 2 meters tall.

Growing Environment: Prefers disturbed soils, roadsides, fields, and waste areas.

Growth Habit: A biennial herb that grows as a basal rosette of large leaves in its first year, followed by a tall, flowering stalk in its second year. The plant is known for its bur-like seed pods that stick to fur and clothing. In situ, common burdock often forms dense stands of large-leaved plants in disturbed areas. Non-toxic, and roots are edible when young.

Priority Ranking: Medium Priority

Impacts on Environment

Impacts: Invasive in some regions due to its aggressive spread via bur-like seeds.

Toxicity: Warning: Because of its diuretic effects, common burdock has been listed as a poisonous plant.