While routine watering of houseplants, I saw what I thought was "dog fluff" in my Mother's Day Vine/Rosary Vine/ Ceropegia woodii. I reached up and found that somehow this plant had been pollinated and it presented seeds like Dandelion or Cat Tail. The sad thing is I went to get an envelope and went back and most the seed blew away.
Here is a picture of the flower:
