Great find Akira. I must have missed this one, as i hadn't seen it before.
It's difficult to find withered/withering flowers around the house. Usually they've been "cleaned up" by my wife before i can get to them. Found an example outdoors in the garden. I believe it is a Schlumbergera truncata, if i'm not mistake in English a.k.a. Christmas Cactus, Crab Cactus, False Christmas Cactus.
Foreground: withered, background: fresh one