Brassica rapa

Field Mustard, Mizuna, turnip, Toria, Yellow Sarson, Birdsrape Mustard

Description:  biennial; grows up to 16 inches tall;  leaf margins are irregular and wavy and grow in a basal rosette (on ground, radiating from a single point); develops branching stems with four-petaled yellow flowers in clusters at tips. 

Place of origin: Eurasia

Urban habitat:  Commonly found along roadsides, in disturbed areas.

Ecological function:  disturbance-adapted colonizer; food for wildlife.

History:  Brassica rapa is widely cultivated in a variety of subspecies and is currently found throughout North America. It is edible and has been used by many cultures as a vegetable, medicinally and as forage crop for livestock. Its root contains a natural pesticide.