Ipomoea purpurea

Scientific Name Ipomoea purpurea (L.) Roth.
Common Names English: Tall morningglory; German: Trichterwinde; French: Volubilis; Spanish: Gloria de la mañana, campanilla morada
Description Annual seed propagated weed with long vine, originates from Tropical America.

Descriptions

Characteristic Features

Vine up to 5 m (16.4 ft) long, distinctive heart-shaped leaves and purple to white flowers.

Cotyledons

Moderately indented as compared to either pitted, palmleaf, sharppod, or cotton morningglory. Cotyledon lobes are rounded and not pointed to any degree, perfectly square in outline.

Stems

Glabrous or bristly-pubescent, trailing or twining.

Leaves

Alternate, leaves heartshaped, leaf-blade ovate, entire or 3-lobed, 7.5 cm (2.95 inch) long and wide, acuminate at the apex, cordate at the base, glabrous or pubescent.
Petiole 7.5-9 cm (2.95 - 3.54 inch) long.
First true leaf often without hairs unlike the subsequent leaves.

Propagatio Organs

Flowers

Flowers solitary or in few-flowered cymes.
Peduncle up to 12 cm (4.72 inch) long.
Pedicels 1.3-2.5 cm (0.51 - 0.98 inch) long.
Sepals lanceolate, 1.3-1.6 cm (0.51 - 0.63 inch) long, 1.5-4.5 mm (0.059 - 0.18 inch) wide, usually not conspicuously attenuated at the apex, bristly below, finely pubescent all over.
Corolla funnel-shaped white, pink or magenta.
Tube white below, 4-5 cm (1.57 - 1.97 inch) long.

Flowering Period

July-October.

Fruit

Capsule 1.1 cm (0.43 inch) in diameter, glabrous, 3-locular, containing 4-6 seeds.

Seeds

3- to 4- angeled brownish black.
Germination in spring.

Occurrence

Habitat

Fallow and cultivated fields, waste ground, roadsides, railroads.

Soil

Wide array of soil types: moist and rich soil, acidic, alkaline, sand, loam.

Additional Crop Information

Soybean and other agronomic crops, nurseries, landscapes and noncrop areas.

Agricultural Importance

The plant is very aggressive and can be a noxious weed if left unchecked. This species is easy to identify in the field because of its big purple flowers and large cordate leaves. I. purpurea is an important weed in subtropical areas and strongly interferes with the crop. Tall moningglory is difficult to control.

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