1. Looks like Epiphyllum sp. http://www.cactusplus.co.uk/plus/epiphyllum_JPG_view.htm http://www.google.co.uk/search?hl=e...02&um=1&biw=1247&bih=559&ie=UTF-8&sa=N&tab=iw 2. Possibly Serapias lingua. A terrestial orchid. http://www.google.co.uk/search?q=Se...&source=og&sa=N&hl=en&tab=wi&biw=1247&bih=559
Yes, indeed, Medicago. I was blinded by images of Ceratocephala, which is now all over our place and has very similar spiny fruits.
Yes, I did not enlarged the picture before and did not see that the fruits are indeed spiral, so I supposed that leaves and fruits might belong to two different plants.