Sisymbrium irio

 
London rocket;
  

Brassicaceae Week: Sisymbrium irio from Delhi:  Sisymbrium irio L., Sp. Pl. 2: 659, 1753
Common name: London rocket
Annual herb easily differentiated by its smaller flowers (petals 3-4 mm long) and slender fruit barely 1 mm broad and 30-45 mm long. 
Photographed from Delhi on growing as weed in beds and shaded wastelands.
  
 
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