Convolvulus arvensis

Scientific Name Convolvulus arvensis
Common Names English: Field bindweed; German: Ackerwinde; French: Liseron des champs; Spanish: Correhuela, campanilla menor
Description Perennial weed with deep taproot and numerous horizontal root stolons covered with buds, found in warmer to moderate regions.

Descriptions

Characteristic Features

Older leaves saggital, infindibulate white to purple flowers.

Cotyledons

Long-petiolated, square to kidney-shaped, usually with a slight indentation at the apex, midrib and veins visible.

Stems

Hairless, prostrate or sinistrorse, glabrous to pubescent, 6-angled.

Leaves

Saggital, lobed at the base, 20 mm (80.78 inch) long petiole, blade glabrous or pubescent, rounded at the apex.

Propagatio Organs

Flowers

Corolla funnel formed, white or tinged with pink. Flowers either single or in loose cymes of up to 3 flowers.

Flowering Period

May-October.

Fruit

Glabrous 4-valved capsule, +/-6 mm ( +/-0.23 inch) long.

Seeds

Germination occurs all-year-round. Low fruit setting.

Viability Of Seeds

>20 years.

Propagation

Vegetative, sometimes by seed, 500 seeds/plant.

Occurrence

Habitat

Waste ground, disturbed sites, roadsides, railroads.

Soil

Loose, warm and deep loam soil, lime-loving.

Additional Crop Information

Also widespread in areas with open vegetation.

Agricultural Importance

C. arvensis became a major weed in almost all crops. It climbs up the stems of the crops and strongly competes for light and water and interferes with combine harvesting (picking of berry fruits, combining). The plants build very deep roots and many, up to 2 m (78.74 inch) long rhizomes. Single plants can spread widely in the field and infest large areas.
Reduced tillage practices increase field bindweed infestations. Plants can regrow from rhizome segments.

Control

Integrated Crop Management

Ploughing and repeated stubble cultivation suppresses field bindweed.

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