Matucana hystrix is a form of variable M.haynei species. It is a large Matucana, growing as a ball utill it reaches about 6 inches in diameter, after that slowly becomes cylindrical. It is densely covered with whitish spines, similar to other forms of M. haynei. It pushes out it's bright red flowers in bursts, several per time. always crowning the plant with another bouquet.
Matucanas are generally easy and free flowering plants, responding well to common culture. It takes about 4-5 years to grow a flowering plant from seed. Generally considered small plants, under good growing conditions they reach significant size in not too long time. Matucanas are native to high elevations of Peruvian mountains and one should expect them to have limited heat tolerance. I have not seen any problems of that kind myself, beyond expected growth slow down during hot spells.