Cabbage family help please

[pammosley]

Hi folks, I`m having ago at IDing some brassicas Can anyone point me in the right direction please
All taken today along a riverside path by a Rugby pitch Mixing 2 hobbies
These2 are the same plant, maybe Wild Turnip?





These 2 are the same plant, maybe White Mustard?





I know this is not a cabbage family but any ideas? The heads smelt strongly when crushed, not unpleasent, not sure what like though.



Thanks for taking the time to look Now to have a go at some prickly ones

[aeshna5]

Agree 1 is Wild Turnip, Brassica rapa.

Last is in daisy family- Asteraceae. It's a Conyza fleabane + I suspect it's C. sumatrensis (Guernsey Fleabane- really common in waste places around London at least).

[davidbr]

No.2 looks like Black Mustard (Brassica nigra)

The third plant is definitely a Conyza fleabane, and they can be quite tricky from photos. However, on yours the stem is very sparsely hairy and the bracts (green bits around the flower) appear completely hairless - that'd make it Canadian Fleabane (Conyza canadensis).

C. sumatrensis has the bracts noticeably hairy and the stem pubescent. The other increasing species these days is Bilbao Fleabane, C. bilbaoana, which has appeared everywhere this year on my Bristol patch; it has hairless bracts like your one, but the stems are very stiffly pubescent.

I'll try to post up some photos when I get chance to resize them