Hoary Mustard

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Hirschfeldia incana is a species of flowering plant in the mustard family known by many common names, including shortpod mustard, buchanweed, hoary mustard and Mediterranean mustard. It is the only species in the monotypic genus Hirschfeldia, which is closely related to Brassica. The species is native to the Mediterranean Basin but it can be found in many parts of the world as an introduced species and often a very abundant noxious weed. This mustard is very similar in appearance to black mustard, but is generally shorter. It forms a wide basal rosette of lobed leaves which lie flat on the ground, and it keeps its leaves while flowering. Its stem and foliage have soft white hairs. Unlike black mustard, H. incana is a perennial plant.

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accepted species in GBIF

Source: GBIF

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Other plants in this genus

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Shortpod Mustard

Hirschfeldia incana

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Research across the genus Hirschfeldia 1 article

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Integrative physiological and metabolomic study of Hirschfeldia incana under short- and medium-term lead (Pb) stress.

Hoary mustard (Hirschfeldia incana) deploys a two-stage chemical defense against lead contamination: within days it floods cells with antioxidants and protective sugars, then over weeks it reinforces root cell walls with lignin-building compounds to limit further lead uptake. The findings reveal why this roadside weed thrives on contaminated ground and how it might be harnessed to clean polluted soil.

Hoary Mustard