There's a wildflower/weed in my garden that the bees love - but what is it?

We had a bright yellow wildflower growing at the edge of our lawn this year that the bees loved. I'd like to encourage it and/or add some more to help the bees out if possible, as our lawn doesn't seem to actually support grass very well anyway but "weeds" love it. I am not worried about having a tidy lawn, as everything grows too much in the summer months for me to keep on top of it anyway, and I'd rather support as much biodiversity of wildlife in my little garden as I can.
I am thinking it must related to clovers or trefoils, but it's not something I've ever seen before. Can anybody tell me what it is? Thank you.


I am thinking it must related to clovers or trefoils, but it's not something I've ever seen before. Can anybody tell me what it is? Thank you.


0
Posts
http://www.english-country-garden.com/flowers/lesser-yellow-trefoil.htm
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.