no spikes just nubs
Drought Smart Plants reply;
Wow, the watermarks on that plant are amazing.
I am not clear on this particular plant; it would be interesting to know how long you've had it, and if it's got any new growth that does have spikes.
If not, I'm going to go with Echinopsis, the Sea Urchin cactus, or Easter Lily cactus, so named firstly because of its shape, secondly because of the huge long stemmed blooms that occur in summer.
If this plant gets a good dry dormant period, then a good regimen of light fertilization and frequent water (about every one to two weeks) in summer, it will bloom in shades of white, yellow pink or red.
I'm really glad that you are growing these in my favorite type of pots for cacti and succulents; terracotta clay pots.
These usually have the excellent drainage that these plants require, but the pots also breathe through the porous clay, allowing air exchange to the roots - an essential thing for the plants health.
Happy Cactus Gardening!
Jacki
See these pages too:
Cacti and Succulents
Cactus Plants
Terracotta Clay Pots