The arid lands of the central Mexico plateau are home to many cacti, among which there are the Thelocactus species. These are small to medium sized plants with a beautiful spination and showy flowers. Since their first introduction in Europe in the nineteenth century, they have been very popular among collectors, mainly for their appearance, free-flowering habit and ease of cultivation. The genus is small, made up of about 15-20 entities, the number varying according to the authority. The names associated with this genus are many more and for a non-specialist may be difficult to untangle among them. I hope to give you enough information to find the right way to better understand these fascinating plants.
Alessandro Mosco