New cultivar. It is compact and spineless or inermis form. Dots on stem spiral upward beautifully. For size of plant check pic with scale.

The species name "Euphorbia royleana" honors Dr. John Forbes Royle, a 19th-century English botanist who contributed significantly to the study of Indian botany. The form designation "inermis" is Latin for "unarmed" or "spineless," describing this particular variant's lack of the spines commonly found on other Euphorbia species. This spineless form sets it apart, offering a less hazardous option for cultivation in areas accessible to people and pets.

Technical Description of Plant

Euphorbia royleana f. inermis boasts a robust, tree-like structure, capable of reaching heights up to several meters. Its succulent green stems are cylindrical, thick, but not prominentaly ribbed, resembling a cactus but without the spines. This plant can produce small leaves along the edges of the stems under optimal conditions, which typically fall off as the plant matures. During the summer months, it may bear small, inconspicuous flowers, followed by fruit. The spineless nature of this form makes it particularly attractive for indoor and outdoor cultivation, where traditional spiny cacti and succulents might pose a risk.

Origin of Plant

This plant is native to the Himalayan regions of India and Nepal, where it thrives in rocky and arid environments. Its adaptation to harsh, drought-prone conditions makes it an excellent candidate for xeriscaping and water-efficient gardens. The spineless form, however, is less common in the wild and is primarily propagated for ornamental purposes.

Conservation Status

Euphorbia royleana, in its various forms, does not currently hold a specific conservation status, but its habitats are increasingly threatened by human activity and climate change. Cultivation in gardens and collections can aid in its preservation by reducing the need for wild harvesting.

Care Instructions

Euphorbia royleana f. inermis is relatively easy to care for, requiring minimal attention to thrive. It prefers well-draining soil and full sun to partial shade conditions. Water sparingly, allowing the soil to dry out completely between watering sessions, and reduce watering in the winter to mimic its natural dormant period. It is frost-sensitive and should be protected from freezing temperatures. When handling, be cautious of its latex sap, which can be irritating to the skin and eyes.