This PeckOnAJ Fanclub foto contains
wolfsmelk, wolfsmelkpijlstaart, winter jasmijn, winterjasmijn, and jasminum nudiflorum.
There might also be
boterbloem, butterflower, boter bloem, ranonkel, goldcup, kingcup, boter-bloem, crowfoot, western boterbloem, ranunculus occidentalis, and westerse buttercup.