REPORT

Invasive Plant Details

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Common Comfrey

Latin Name: Symphytum officinale

Priority Ranking: Low Priority

Identification

Flower: Bell-shaped, purple, pink, or white flowers that bloom from late spring to midsummer.

Leaves: Large, lance-shaped leaves that are rough and hairy.

Stems: Erect, thick, and covered with stiff hairs, growing up to 1 meter tall.

Growing Environment: Prefers moist, fertile soils in gardens, ditches, and along streambanks.

Growth Habit: A perennial herb that grows from a deep taproot, forming dense clumps of large, rough (hairy) leaves. It spreads through rhizomes and can form large colonies. In situ, common comfrey often creates a dense, leafy mass in moist areas, with clusters of bell-shaped flowers on tall stalks.

Priority Ranking: Low Priority

Impacts on Environment

Impacts: Moderately invasive in moist areas, where it can form dense colonies.

Toxicity: Toxic if ingested in large quantities due to pyrrolizidine alkaloids.