Convolvulus erubescens

Scientific Name Convolvulus erubescens
Synonyms Convolvulus angustissimus
Common Names English: Australian bindweed, Blushing bindweed, Pink bindweed; German: Errötende Winde; French: Liseron
Description Perennial with trailing and twining stems.

Descriptions

Characteristic Features

Impressing colored flowers and deep rhizoms.

Stems

Stems terete to narrowly winged, moderately to sparsely hairy.

Leaves

Leaves very variable.
Lamina ovate to triangular (rarely linear) in outline, 2.5-5.5(-6) cm (0.98 - 2.16 - 2.36 inch) long, 2-40 mm (0.078 - 1.57 inch) wide.
Apex acute to rounded, apiculate or occasionally emarginate.
Margins entire in basal leaves, becoming toothed or shallowly to deeply lobed, sparsely to moderately hairy with crisped, appressed to loosely ascending hairs.
Petiole to 25 mm (0.98 inch) long (to 35 mm, 1.37 inch on basal leaves).

Propagatio Organs

Flowers

Inflorescences 1-3(-4)-flowered, usually solitary in the leaf axils.
Peduncle mostly terete, 10-60 mm (0.39 - 2.36 inch) long, with appressed hairs.
Sepals sometimes hairy with appressed to ascending hairs.
Corolla funnel-shaped, 7-15 mm (0.27 - 0.59 inch) long, 8-20 mm (0.31 - 0.78 inch) diam., pink or mauve with a pale, greenish throat.

Flowering Period

Late spring to early autumn.

Fruit

Capsule globose, 4.5-6 mm (0.17 - 0.23 inch) long, 5.5-6.5 mm (0.21 - 0.25 inch) diam., glabrous. Fruiting pedicels not conspicuously recurved.

Seeds

2.8-3.7 mm (0.11 - 0.14 inch) long, finely punctate with small irregular tubercles; not distinctly winged. Germination from August-October.

Propagation

Mainly vegetatively.

Occurrence

Habitat

Railways, roadsides, disturbed areas.

Soil

Light to medium clay loam soils.

Agricultural Importance

Bindweed is a very deep-rooting plant with a vigorous root system that extends to a considerable distance and is very hard to eradicate from the soil. Even a small piece of the root will grow into a new plant if it is left in the ground. Once established this plant soon becomes a pernicious weed. It is a climbing plant that supports itself by twining around any support it can find and can soon swamp and strangle other plants.

Control

Integrated Crop Management

Deep and repeated tillage practices before long periods of drought damage the rhizoms of this weed and prevent propagation and new infestations.

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