Brown mustard


Scientific Name

Brassica juncea (L.) Czern.


Other Names

Raayo ko saag (Nepali)


Life Form

Herb


Synonyms

Brassica arvensis var. juncea (L.) Kuntze


Family

Brassicaceae



Raayo ko saag (Nepali)
Image by - Saroj Kasaju
Usages

Food - Widely used as spice, leaves used as vegetable, seed oil used in pickles and cooking. Eco-restoration - Plant can be used to remove heavy metals from contaminated soil.


Native to

Caucasus


Habitat

It grows in fields, waste places, roadsides.


Conservation Status

Not evaluated


More Info

A green manure crop, having the ability to suppress soil-borne diseases. A key ingredient in traditional diets.


Plant Description

Annual herb reaching heights of 20-50 cm with erect, branching stems.

Stem erect, branching stems typically smooth, though some varieties may have fine hairs.

It consists of large, irregular teeth (dentate), and lobed leaves (lyrate-pinnatifid) with 2 or 3 pairs of leaflets emerging from a central stalk at the base. Leaves transition to a simpler oblong-oval shape, still boasting some toothed margins, and at the top, the leaves transform into narrow, elongated blades with pointed tips (oblong-linear).

Flowers bloom in loose clusters (racemes) with 20-40 tiny, golden yellow flowers (c. 7 mm). The flowers are held aloft by slender stalks (pedicels) that lengthen as the fruits develop.

After flowering, slender pods (3-5 cm long) develop, containing rows of tiny, dark brown seeds. These elongated pods stand upright or spread outward.


Phenology

Flowering: March – June
Fruiting: April – July