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Invasive Plant Details

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Curled Dock

Latin Name: Rumex crispus

Priority Ranking: Low Priority

Identification

Flower: Small, greenish or reddish flowers that form dense clusters on tall, erect spikes, blooming from spring through summer.

Leaves: Large, lance-shaped leaves with wavy, curly margins, basal leaves are much larger than upper leaves.

Stems: Erect and grooved, growing up to 1.5 meters tall.

Growing Environment: Prefers disturbed soils, pastures, roadsides, and wet areas.

Growth Habit: A perennial herb that grows from a deep taproot. It forms a rosette of large, wavy leaves and sends up tall, flowering stalks that bear clusters of small, inconspicuous flowers. In situ, curled dock often appears as a tall, upright plant in disturbed areas or wet habitats, with its distinctive curly-edged leaves.

Priority Ranking: Low Priority

Impacts on Environment

Impacts: Moderately invasive in disturbed areas and wetlands.

Toxicity: Mildly toxic if ingested in large quantities due to oxalates.

Photo Credits: freenatureimages.eu - Katy Chayka, Jan van der Straaten, Ed Stikvoort, Rutger Barendse and Peter Dziuk