Rick - hello - got a new email address and lost yours - glad you got white sprite to grow and bloom for you! Hope it makes lots of seed for you too. I would take a guess that your begonia is maybe probably a Non-Stop Mocha Series or some other similar seed grown tuberous variety. Very nice looking in your pic, it will want to go dormant so hold back on the watering.

Cas Li, Yours is not a maculata but rather a hybrid with maculata in its parentage. The leaf is too wide for its length IMO. Try looking at Flamingo Queen which is a dramatic hybrid from maculata and so many other wonderful hybrids with maculata in it. Go to the International Database of Begonias and do an advanced find. Put in maculata as one of the parents and do a search. This database is a bit fussy so if you do the next page of results, then use the next at the bottom of the page. Do not use the next button at the top of the page. If you want to see each match (make sure it is a cane type) then right mouse click and do an open in a new window or tab. If you left mouse click on any link it will take you there but the back button will get an error and you will have to start again. http://ibegonias.filemakerstudio.com.au/index.php?-link=Home Some hybrids that I've had are Amelia, Matchmaker, Texas Lone Star, and many more. They all have the same genetic flaw though - mildew prone. Here are four I had years ago (Texas Lone Star, Sierra Mountain King, Flamingo Queen, and Matchmaker) Enjoy what you have and don't worry about names unless you started selling any.

Relation to landscaping?

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