Myagrum paniculatum L.[1] Neslia is a monotypic plant genus in the family Brassicaceae.

[3] Neslia paniculata (commonly called ball mustard) is a plant species in the family Brassicaceae.

[4] It is an annual where the seeds germinate in autumn to winter and grow into a flattened rosette of leaves that develop vertical flowering stems in the spring.

[7][8] It is considered a weed in many of these regions introduced from agricultural seed and can be a problem in cereal and especially other brassica crops.

At the other end of the spectrum, within some its original region it has become a threatened or rare arable plant as a consequence of improved agricultural practices.