The name of this genus comes from the Greek and literally means "curved", referring to the curved and climbing course of its stems. They consist in wonderful caudices, formed by a woody and rough tuber, of spherical shape, sometimes also completely asymmetrical, ovoid or elongated. This is the characteristics that collectors love the most, because this allows each plant to be absolutely unique! The caudex also assumes the important function of water reserve, allowing the plant to survive even long periods of drought. Every year, during the vegetative period, new thin and very long stems are generated from the tuber which develop with contorted and bushy course, often climbing character. Perhaps not many people know that this genus presents, inside the stems, a latex consisting of many substances including caffeic acid, useful to slow down the oxidative stress of the human body! Here are some tips for its cultivation: It needs a lot of light during all seasons. Keep it at mild temperatures and never below 10 º C, for this reason is recommended to place it sheltered during winter. Water regularly but sparingly during the vegetative period (when the new leaves are born), check that the soil is dry before the next watering. During the vegetative rest period (when the leaves begin to fall) suspend watering. We suggest a well draining and porous soil, even better if further enriched over 50% with inert materials such as pumice, lapillo, clay. It does not need frequent fertilizations, it will be sufficient to dilute the fertilizer with the waterings once a year.