Brassica tournefortii

Brassicatournefortii1

Brassica tournefortii

Brassica tournefortii, commonly known as Asian mustard, Sahara mustard, or wild turnip, is a species of flowering plant in the Brassicaceae family. It is native to the Mediterranean Basin but has become an invasive species in many parts of the world, including North America and Australia.

Description

Brassica tournefortii is an annual herb that can grow up to 1 meter in height. The plant has a rosette of basal leaves that are deeply lobed and can be up to 30 cm long. The stem leaves are smaller and less divided. The flowers are small, yellow, and arranged in clusters. The fruit is a long, narrow silique that contains several seeds.

Habitat

This species thrives in disturbed areas such as roadsides, agricultural fields, and desert environments. It is highly adaptable and can grow in a variety of soil types, although it prefers sandy or gravelly soils.

Distribution

Originally from the Mediterranean Basin, Brassica tournefortii has spread to various parts of the world. In North America, it is found in the southwestern United States, particularly in California, Arizona, and Nevada. In Australia, it is considered a significant weed in arid and semi-arid regions.

Ecological Impact

Brassica tournefortii is known for its aggressive growth and ability to outcompete native vegetation. It forms dense stands that can alter fire regimes and reduce biodiversity. Its presence in agricultural areas can also lead to reduced crop yields.

Control and Management

Managing Brassica tournefortii involves a combination of mechanical, chemical, and biological control methods. Mechanical control includes hand-pulling and mowing before the plant sets seed. Chemical control involves the use of herbicides, although care must be taken to avoid damage to non-target species. Biological control is still under research, with potential agents being evaluated for their effectiveness and safety.

Related Pages

• Brassicaceae
• Invasive species
• Mediterranean Basin
• Silique
• Annual plant