African mustard USDA PLANTS Symbol: BRTO
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Brassica tournefortii Gouan

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Taxonomic Rank: Magnoliopsida: Capparales: Brassicaceae
Synonym(s): Asian mustard, African mustard, Asian mustard, Tournefort's birdrape, wild turnip
Native Range: Africa, temp. & trop. Asia Europe (GRIN);

Appearance
Brassica tournefortii is an annual herb that can grow to 3 ft. (0.9 m) tall which usually grows in areas such as desert lands and dunes.
Foliage
The leaves are mainly in a basal rosette and are green, pinnately lobed, and have toothed margins which are prickly hairy.
Flowers
The flowers have 4 light yellow petals, are 0.25 in. (0.6 cm) across, and are clustered in groups of 6 to 20 flowers. The blooming period occurs from February to April.
Fruit
Fruit is 2.5 in. (6.35 cm) long, linear, with rounded edges and an obvious beak at the tip. Seeds are round, dark brown to brown-purple, and are sticky when wet.
Ecological Threat
Brassica tournefortii prefers disturbed areas such as roadsides and abandoned fields. It is native to Africa, Asia, and Europe.

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


Plant(s);
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Foliage;
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Foliage;
Bonnie Million, National Park Service, Bugwood.org
Additional Resolutions & Image Usage

Foliage;
Bonnie Million, National Park Service, Bugwood.org
Additional Resolutions & Image Usage

Feature(s); downward turning hairs at base of the stem
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Stem(s);
Bonnie Million, National Park Service, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
Bonnie Million, National Park Service, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); inflorescence
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Damage; Aphids on Brassica tournefortii
Bonnie Million, National Park Service, Bugwood.org
Additional Resolutions & Image Usage

Stem(s);
Bonnie Million, National Park Service, Bugwood.org
Additional Resolutions & Image Usage

Damage; aphids on Brassica tournefortii
Bonnie Million, National Park Service, 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.

U.S. National Parks where reported invasive:
Chiricahua National Monument (Arizona)
Glen Canyon National Recreation Area (Utah)
Grand Canyon National Park (Arizona)
Lake Mead National Park (Nevada)
Organ Pipe National Monument (Arizona)



Invasive Listing Sources:
California Invasive Plant Council
Faith Campbell, 1998
Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007