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The uppermost stem leaves in picture 4 appear to be deeply lobed to me? Am I misunderstanding something?
yes - look at the shape of the terminal lobe. Broad in vulgaris, narrow in intermedia. See page 391
Thanks, that is very clear now. I do not think the key in Stace is clear or at least I was misunderstanding it.
agree. Keys in my BSBI crucifer handbook carefully worded! (I don't get any royalties...)
Lat/Lng: 52.225785, 0.041541
OS grid ref: TL395605