I.D. Please

Hi everyone.  I have a tiny area where I sowed seeds.  The recognisable ones in this patch are Emilia Irish Poet, Scarlet Flax, California Poppy.  The Tall Blue Cornflowers seem to have evaporated as have the Nigella!  Too many seeds planted too close together.

However, 4 of these large things have appeared - in a row.  The fact they are in a row has made me hesitate to pull them out as weeds.  In the photo you can see a little cluster of buds on one of these plants.

Can anyone identify this for me please?  I will of course chew my chin if they are indeed a really nasty weed.  I did sow large red poppy's which don't seem to have appeared - is there any possibility these could be giant wild poppies?  They don't look like any I've experienced before.  You can tell I don't want to accept they are likely weeds.  It's the big prominent leaved plant.

There ARE two oriental poppies directly behind this plant - they are there intentionally.  The one with the discoloured leaves yellow and green and one with black tipped damaged leaves.   I moved them in the Spring and shouldn't have so they are the to recover in the hope they will grow normally again next year.

Many thanks.