WIKI JUMP TO THIS OXALIS TRIAGULARIS if you like. There is a quick interesting time lapse there. Check it.
I have 6 at the moment. Can get more if anyone needs them. $6 each. I'm interested in planting them in a longer interior window sill. I use to have one in a white hanging bullet planter. Note to self, get modern hanging bullet planters, (any of you making them?) Pretty cool plant. They do die back a bit in the winter. But just keep loving them, and they pop back out in the spring.