Euphorbia monstrose
Native range: South Africa
Known names: 
Hardiness: Down to 30°F, heat tolerant, can take lower temperatures if kept dry.
Mature Size: 5", spreads outward.
Light: Bright indirect light - full sun
Water: Drought tolerant, water when soil is dry.
Soil: Succulent mix
Dormancy Period: N/A
Pet-Safe: No
Plant Size: 2.5" pot
 
Euphorbia monstrose forms an outward-growing clumps of balls! Older canes will be more-elongated but new growth will still look like tiny little balls. Yes, Euphorbia produces toxic sap but just don't eat or put the sap in your eyes. Euphorbias are technically not cactus some of them, including this one, can be grown like one.