A flower has grown on a leaf in our garden. What is the name of this flower? Give some description.
$\begingroup$ This searchable image database may have the flower you are looking for. plants.usda.gov/gallery.html $\endgroup$– GalenAug 1, 2015 at 16:41
1$\begingroup$ Please indicate where this is located. $\endgroup$– MattDMoAug 1, 2015 at 17:41
1$\begingroup$ Great picture of what looks like a cactus; cf "White Torch Cactus". However, it would be helpful to have a picture of the leaf, and to know where and when this was flowering. $\endgroup$– OreotrephesAug 1, 2015 at 20:55
It appears to me to be a Night Blooming Cereus:
We had one in our greenhouse in Botany. It rarely bloomed, and the bloom was wilted by mid-morning.
Night-blooming cereus is the common name referring to a large number of flowering ceroid cacti that bloom at night. The flowers are short lived, and some of these species, such as Selenicereus grandiflorus, bloom only once a year, for a single night. Wikipedia
Dave's garden lists it as "Dutchman's Pipe Cactus, Night blooming Cereus" Epiphyllum oxypetalum.