Hoary-Mustard (Hirschfeldia)
Hoary-Mustard Genus Details
Hoary-mustard is a perennial introduced from western Asia into California in the early l900's. The plants have white flowers. The leaves clasp the stem and the fruit is lens-shaped. The plant spreads by seeds, root fragments and an extensive underground creeping root system. It is found in cultivated cropland, fields and pastures.
Hoary-Mustard Allergy Info
This genus is not commonly cited as a source of allergy.
Hoary-Mustard Pollen Description
Grains of Brassicaceae are prolate to subspheroidal; the amb rounded-triangular or with convex sides, and 3-(4)-colpate. The colpi are long, the opercula is granular and the sexine is reticulate.
Pollen grains are 24-27 x 18-19 micrometers.
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Brassica juncea, single grain. Herb. MIN
Species in This Genus
Allergenicity Legend:
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Hoary-Mustard (Hirschfeldia) is a genus of the BRASSICACEAE family.
This genus includes the following allergenic species:
This genus includes the following allergenic species:
