Flower ID's

[Tormentil]

Can sks ID these please.
Habitat: Marsh/Wetland (Clapgate Pit NR, Lincs)

here

1.

2.

3.

[jhewitt15]

1) white mignonette or just normal mignonette
2) marsh bedstraw
3) common rock rose.

pretty sure the first is mignonette family . just not sure which one.

[AlanS]

1) Wild Mignonette (Reseda lutea)

2) Hedge Bedstraw (Galium mollugo). Marsh Bedstraw does not have the mucronate (shortly projecting spines) tips of the leaflets that are clearly shown here.

3) Yes, Common Rockrose (Helianthemum nummularium) (H. chamaecistus in older books and H. nummularium again in even older books)

None of your plants here are marsh plants, though happy enough in old pits with some lime in the soil.

Alan

[Pete Collins]

I managed to recognise the Wild Mignonette and the Common Rock-rose - I see them around here frequently, they both seem to like the steep chalky grassland of the Chiltern escarpment.

I see Lady's Bedstraw a lot in the same habitat. I've yet to identify the white Bedstraw I occasionally see, perhaps that is Hedge Bedstraw. I'll have to photo it next time I see it and get it identified here.

[Tormentil]

Thanks all.

Originally Posted by AlanS

None of your plants here are marsh plants, though happy enough in old pits with some lime in the soil.

Alan

Alan, I don't think I would've called the site Marsh/Wetland; dampish, yes.

[AlanS]

Originally Posted by Pete Collins

I managed to recognise the Wild Mignonette and the Common Rock-rose - I see them around here frequently, they both seem to like the steep chalky grassland of the Chiltern escarpment.

I see Lady's Bedstraw a lot in the same habitat. I've yet to identify the white Bedstraw I occasionally see, perhaps that is Hedge Bedstraw. I'll have to photo it next time I see it and get it identified here.

Yes, Hedge Bedstraw is likely to be what you are seeing.
Look for combination of:
mucronate tips to the leaflets
stem smooth to the touch (as distinct from very rough)
relatively large size

A problem here is that Hedge Bedstraw is very variable, sometimes clambering over hedges and other plants (and then with conspicuously swollen stem-joints), sometimes simply standing erect, varying also in size of flower, shape of whole inflorescence, the way the fruits are angled, etc. etc., and so a given plant may not look too much like someone else's picture.
There are supposedly two subspecies (and upright plants growing on chalk escarpments are likely to be subsp. erectum), but British populations show a complete spectrum of variation. They are more distinct on the continent.

Alan

[Pete Collins]

Thanks again, Alan. (I had to look 'mucronate' up in the glossary in The Wild Flower Key ). I'll look out for possible Hedge Bedstraw next time I go for a walk.

[AlanS]

Originally Posted by Pete Collins

I had to look 'mucronate' up in the glossary in The Wild Flower Key

But I did explain it in my first post!

Alan

[Pete Collins]

Whoops! Sorry, so you did - I missed that.