white bryony USDA PLANTS Symbol: BRAL4
U.S. Nativity: Exotic
Habit: Vines Forbs/Herbs
Bryonia alba L.

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Taxonomic Rank: Magnoliopsida: Violales: Cucurbitaceae
Native Range: Europe to northern Iran (BAIL);

Appearance
Bryonia alba is a vigorous herbaceous perennial vine resembling kudzu in appearance and growth habit.
Foliage
Vines emerge each spring from a large fleshy parsnip-shaped tuber and grow rapidly, sometimes to 30 ft. (9.1 m) in a season. Bryonia alba develops a herbaceous vine each year sporting tendrils and palm-shaped, alternate, broadly five lobed leaves which are covered on upper and lower surfaces by small white glands.
Flowers
Flowers are small, greenish-white, with five petals and produced in clusters.
Fruit
Fruits consist of dark-blue berries that can be 0.3 in. (0.8 cm) in diameter when fully ripe. When crushed, the berries contain a viscous fluid and emit a very bad odor.
Ecological Threat
Infestations will overgrow and smother small trees and shrubs forming dense mats which shade out all the vegetation it grows upon. If established in areas with no structure to climb, it will form a dense mat covering the ground. All parts of Bryonia alba contain byonin, a toxin that can cause illness or death. Livestock may also poisoned by consuming the plant.

Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s); habitat; flower; fruit;
Robert Vidéki, Doronicum Kft., Bugwood.org
Additional Resolutions & Image Usage

Foliage; habitat; flower; fruit;
Robert Vidéki, Doronicum Kft., Bugwood.org
Additional Resolutions & Image Usage

Foliage;
Robert Vidéki, Doronicum Kft., Bugwood.org
Additional Resolutions & Image Usage

Foliage;
Jan Samanek, Phytosanitary Administration, Bugwood.org
Additional Resolutions & Image Usage

Plant(s);
Jan Samanek, Phytosanitary Administration, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
Jan Samanek, Phytosanitary Administration, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
Jan Samanek, Phytosanitary Administration, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
Jan Samanek, Phytosanitary Administration, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.


Invasive Listing Sources:
Faith Campbell, 1998
Pacific Northwest Exotic Pest Plant Council, 1998