My entry for Macro Flowers Saturday and TF is:
Trillium These are a gift from nature; they just showed up among my wild ferns one day. From Wilkipedia, this is called, Trillium Grandiflorum, meaning flower among the leaves. Also, seeds of trillium are spreads by ants, the ants extract the seeds, eat the elaiosomes, and throw away the seeds where they germinate in rich soil.
I guess they live up to their name, they came in 3's ... 3 leaves, 3 petals & 3 showed up among my ferns. ;)
According to Mr. Wilkipedia, the white flowers will turn pink as they age like this one.