Ragwort, Willow herb, & orache IDs

[KeenTeen17]

I recently went to St Helen's and there was this ragwort growing in a car park.



It could be either hoary ragwort or oxford ragwort?

I found this willowherb


there was this orache


Is this the seed of hemp agrimony?

[Tiggrx]

1. Look like Sticky Groundsel (Senecio viscosus)
2. The very cross-shaped flowers suggests American Willowherb (Epilobium ciliatum) though hybrids are also common
3. Probably Fathen (Chenopodium album)
4. It is Hemp Agrimony - though they look more like flowers than fruits to me - maybe a white-flowered variant?

[jhewitt15]

I'll go with sticky groundsel as well.

not sure about the rest

[leifus]

1 sticky groundsel
2 american willowherb i think
3 fat-hen
4 hemp agrimony