BugwoodWiki Article

dog-strangling vine, European swallowwort
Vincetoxicum rossicum (Kleopov) Barbarich

Overview

Appearance
Cynanchum rossicum is an herbaceous, twining, long-lived perennial vine. The vines can reach 5 ft. (1.5 m) in length.
Foliage
Leaves are opposite, dark green, oval, shiny, 3-4 in. (7.6-10.2 cm) long and 2-3 in. (5.1-7.6 cm) wide. They are attached to the vine by a petiole about 0.4 in. (1 cm).
Flowers
Flowering occurs in June to September, when dark pink to deep red, 5-petaled, star-shaped flowers appear in clusters. Flowers are approximately 0.25 in. (0.6 cm) across and are covered with white hairs.
Fruit
The fruits are similar to milkweed pods. They are slender, 2-3 in. (5.1-7.6 cm) long and split to reveal small seeds with tufts of white hairs. The hairs allow the seeds to be readily dispersed by the wind.
Ecological Threat
Cynanchum rossicum invades upland areas and tolerates a wide range of light and moisture conditions. It can grow rapidly over native vegetation to the point of dominating the understory of a woodland. Wind-dispersed seeds allow it to disperse over long distances. When it is cut, this plant resprouts vigorously, making control difficult. It is native to Europe and was likely introduced into the United States for ornamental purposes.

Resources

Selected Images


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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Plant(s)
Leslie J. Mehrhoff
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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Feature(s)
Leslie J. Mehrhoff
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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Flower(s)
Leslie J. Mehrhoff
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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Flower(s)
Leslie J. Mehrhoff
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5275024

dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Infestation
Leslie J. Mehrhoff
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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Fruit(s)
Leslie J. Mehrhoff
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5275027

dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Infestation
Leslie J. Mehrhoff
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5275028

dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Seed(s)
Leslie J. Mehrhoff
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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Flower(s)
John M. Randall
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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Flower(s)
Leslie J. Mehrhoff
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5452255

dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Fruit(s)
Leslie J. Mehrhoff
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5452327

dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Foliage
Leslie J. Mehrhoff
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dog-strangling vine, European swallowwort
Vincetoxicum rossicum
Foliage
Leslie J. Mehrhoff

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Gentianales
Family: Asclepiadaceae
Genus: Vincetoxicum

Other System Links

Plants: CYRO8
GRIN: 448793
ITIS: 501902

Synonyms and Other Names

Other Common Names:
pale shallow-wort

Related Scientific Names:

Cynanchum rossicum (Kleopow) Borhidi(Synonym)

Categories

Category: Vines
Category: Forbs/Herbs