Brassica species ?- Hooker Road, Darjeeling Town, West Bengal

Id assistance for Darjeeling Cruciferae: 2 images
I need id assistance for attached Cruciferae taxon
Locality: Hooker Road, darjeeling Town
Date: July 2018
Altitude: 6600 ft

Sysimbrium species ???

I think some Brassica species.