BugwoodWiki Article

black mustard
Brassica nigra (L.) W.D.J. Koch

Overview

Appearance
Brassica nigra is an annual plant that can grow 2-8 ft. (0.6-2.5 m) tall, branching occasionally.
Foliage
The leaves are alternate up to 10 in. (25 cm) long and 3 in. (7.6 cm) across, becoming smaller as they ascend the stems. The lower leaves are pinnate and obovate. The upper surface of a lower leaf is often has scattered hairs that are stiff, short, and white.
Flowers
Flowers are in clusters that are 0.5-2 ft. (0.15-0.61 m) long when fully mature. Each flower can be 0.3 in. (7.6 mm) across, consisting of 4 yellow petals. The petals are rounded toward their tips. Flowers are in bloom during the summer.
Fruit
Fruit is about 0.67 in. (17 mm) long and tapering to a conical beak. The seeds are dark brown to black in color with a pungent taste.
Ecological Threat
Brassica nigra prefers disturbed areas including meadows, thickets, areas along railroads and roadsides. It is native to Eurasia.

Selected Images


5391940
5391940

black mustard
Brassica nigra
Plant(s)
John M. Randall
5374656
5374656

black mustard
Brassica nigra
Flower(s)
Joseph M. DiTomaso
5374657
5374657

black mustard
Brassica nigra
Fruit(s)
Joseph M. DiTomaso
5457987
5457987

black mustard
Brassica nigra
Seed(s)
D. Walters and C. Southwick
5457988
5457988

black mustard
Brassica nigra
Seed(s)
D. Walters and C. Southwick

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: Dilleniidae
Order: Capparales
Family: Brassicaceae
Genus: Brassica

Other System Links

Plants: BRNI
Bayer: BRSNI
GRIN: 7666
ITIS: 23061
NPDN Pest: PBKAFBF
NPDN Host: 8028

Synonyms and Other Names

Other Common Names:
shortpod mustard

Categories

Category: Forbs/Herbs