Thanks, Tapirlord. The calyx? seems to be split into 4. They flower rarely and close to the base of the plant. This is the first time we have seen them throw up a longer flower stem of about 7cm.
Ahh i see what you mean. Looks like W.multicaulis with those short calyx lobes, pronounced 3-fid style and diminutive habitat. Just a question to confirm, do you remember where the plants originated from?