Planteværn Online > Skadevoldere - Weed biology<br> <sub>Agro-region: Denmark</sub> - Greater Plantain

Crop Protection Online

26.4 2024

Weed biology
_{Agro-region: Denmark}

Greater Plantain

Can be mistaken for

Coltsfoot, which often has longer dicotyledon leaves.

Curled Dock, which has somewhat larger dicotyledon leaves and true leaves.

Groundsel, which has true leaves with jagged edges.

Characteristics

Cotyledons
Oblong to lancet-shaped with entire leaf margins. Stalked. Smooth surface. Length approx. 5-6 mm.

True leaves
Oval to egg-shaped with entire or slightly sinuate leaf margins. Stalked. A few hairs on the surface. Length approx. 12 mm. The first true leaves on plants that are germinated from rootstock resemble the true leaves of young seedlings.

Mature plant
Greater plantain is a small plant with rosulate true leaves. The perianth is an oblong spike on stalks, which grow to a maximum of 30 cm. The diameter of the flower is approx. 1-2 mm. Seed production: Up to approx. 2,000 seeds per plant.

Seed
Oval outline, but somewhat angular. The surface is longitudinally furrowed. Thousand grain weight approx. 0.3 g.

Biology

Propagation and dispersal
Through seeds and rootstock.

Habit
Perennial.

Importance

The species is frequently found in meadows and in reduced-tillage fields. The species is also sometimes seen in corn and seed fields. Greater plantain is common throughout Denmark. The species is usually of minor importance as a weed.

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Taxonomy

Plantaginaceae.

Names in different languages

Danish :	Vejbred, glat
German :	Breitwegerich
English :	Greater Plantain
Latin :	Plantago major
Norwegian :	Groblad
Swedish :	Groblad

Seedling

Early stage

Vegetatively reproduced

Flower

Mature plant

Seeds

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Weed biology Agro-region: Denmark