REPORT

Invasive Plant Details

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Field Scabious

Latin Name: Knautia arvensis

Priority Ranking: High Priority

Identification

Flower: Lavender-blue, pincushion-like flowers that bloom from midsummer to fall.

Leaves: Basal leaves are broad and hairy, while upper leaves are narrower and deeply lobed.

Stems: Erect, slender, and slightly hairy, growing up to 1 meter tall.

Growing Environment: Prefers well-drained, nutrient rich soils in meadows, pastures, and roadsides.

Growth Habit: A perennial herb that forms loose clumps of erect stems topped with showy flowers. It spreads by seed and can form scattered patches. In situ, field scabious often appears as tall, slender plants with distinctive lavender-blue flowers, scattered in meadows or disturbed areas.

Priority Ranking: High Priority

Impacts on Environment

Impacts: Highly invasive spreading into grasslands and meadows, where it can form dense stands.