Mrao, I have that begonia too and like you, I don't know the name. But I have to say, it has the most annoying habit of dropping it's lowest leaf as soon as a new leaf opens. I hate that because I only get about 3 leaves at a time. Perhaps I'm not doing something right, I don't know, but this is the only begonia that has behaved in this manner. Maybe it needs a good spanking.

Thanks Laurie. I have had her positioned in a better lighted position since this picture was taken, but no signs of blooming yet. I noted you said you thought yours wasn’t blooming because of too much light? Is that typical? Am I correct to understand that they bloom quite easily and generally late summer or fall, or can they bloom at any time? I wonder because I have a beautiful Gryphon Begonia which I understand is related to the cane types, and it blooms when the daylength is quite short. Mine bloomed for me in February of this year ( indoors of course) after being outdoors until close to my first frost( late September here).1st pic blooming in February. 2nd pic as it appears outside recently. Just thought I’d share that, hope you don’t mind.

Bernie, Your leaf of Maurice may root but I kind of doubt it will make a plant. I had a leaf of some superba type canes (Sophie or Lana or maybe Irene) that rooted but never produced a plant. There was a grant from the ABS many years ago to a college botany study to see if there was a secret to obtaining a plant from a cane leaf - never happened. I wonder if tissue culture would work but I seriously doubt that too. The odd thing is some Asian cane looking types can be propagated by leaf such as amphioxus and brevirimosa. Go figure. I have all my begonias indoors now and looking halfway decent. back corner of the big utility room with many canes. Valida is the leaf floppy shrubby begonia. Mr. Hunt is too tall to fit under this light Taconite is the big leaf and Shaun's Dream is the green curly leaf rex my aconitifolia is nearly six feet tall. The cane is Comte de Lesseps. Virginia Jens is a big honking begonia. Judy Cook is a big rex like begonia My own seed grown maculata hybrid Syngoniums and a cane called Hazel's Front Porch in this aluminum pan (been in the same pan for years) Here is the newest stem coming up in the pan.

I thought fusca but then discarded that idea. Certainly not C. Queen. The bigger succulent leaves are a little more difficult to start but not impossible. The idea is to treat them like succulents (very little moisture inside but still cover them to keep humidity in) and when they start rooting then to give them more water. I first thought nelumbiifolia but then your mother's leaves look different than yours. Here is my old C. Queen in an 18 inch pot back in 2005. My biggest one was Lotusland and I kept it for two years - it is a monster. I was able to propagate it from leaves but it was more difficult than other large leaf begonias. I found another name you might want to check - gigantea. At least this how I bought it - from left to right gigantea, Sophie, and a smaller version of Lotusland