We will be rolling out several small fixes mid-day today (Jan 29.) We do not anticipate any disruptions or problems, but f you spot any unexpected issues after 12 noon (PST), please report them in the designated thread in the DG Site Updates forum.
It's not the bladder campion. The flowers look very similar but they don't have the balloon behind them. It looks very much like the other picture I posted of silene dioica except it's white. The leaves are fuzzy and the flowers droop in the heat of the day reviving in the evening when temps cool off. This picture is from last year. If I can't ID it I'll take some more detailed pictures as it grows.