**Echinopsis backebergii**
**Definition**
Echinopsis backebergii is a species of cactus native to South America, known for its distinctive ribbed stems and large, showy flowers. It belongs to the genus Echinopsis, which comprises numerous cacti species popular among collectors and horticulturists.
—
## Overview
Echinopsis backebergii is a member of the Cactaceae family, characterized by its globular to short cylindrical shape and prominent ribs. This species is primarily found in Bolivia, where it grows in arid and semi-arid environments at moderate elevations. It is appreciated for its ornamental value due to its striking floral display and relatively easy cultivation.
## Taxonomy and Nomenclature
The species was named in honor of Curt Backeberg, a notable German cactus specialist and taxonomist. The genus name *Echinopsis* derives from the Greek words „echinos” meaning hedgehog or sea urchin, and „opsis” meaning appearance, referring to the spiny nature of these cacti. *Echinopsis backebergii* was first described in the mid-20th century and has since been recognized as a distinct species within the genus.
## Description
### Morphology
Echinopsis backebergii typically grows as a solitary or slightly clustering cactus with a spherical to short cylindrical stem that can reach heights of 10 to 20 centimeters and diameters of 8 to 12 centimeters. The plant features 10 to 15 pronounced ribs that run vertically along the stem, each rib lined with areoles bearing spines.
The spines are generally short, stiff, and vary in color from pale yellow to brownish, providing protection against herbivores and intense sunlight. The central spines are usually more robust than the radial ones.
### Flowers
One of the most notable characteristics of *Echinopsis backebergii* is its large, funnel-shaped flowers. These blooms emerge from the upper part of the stem, typically opening at night and lasting for a day or two. The flowers can measure up to 15 centimeters in length and display a range of colors, often white or pale pink, sometimes with a darker throat.
The floral tube is covered with fine hairs and scales, and the flowers are highly fragrant, attracting nocturnal pollinators such as moths and bats.
## Habitat and Distribution
Native to the Andean regions of Bolivia, *Echinopsis backebergii* thrives in rocky, well-drained soils at elevations between 1,500 and 2,500 meters above sea level. The climate in its natural habitat is characterized by dry seasons and moderate temperatures, conditions to which the species is well adapted.
## Cultivation
Due to its attractive appearance and relatively straightforward care requirements, *Echinopsis backebergii* is popular among cactus enthusiasts. It prefers bright light and well-draining soil, with minimal watering during the winter months to prevent root rot. The species can be propagated from seeds or offsets, although seed propagation is more common.
It is important to protect the plant from frost and excessive moisture, as these conditions can be detrimental. When grown under optimal conditions, *Echinopsis backebergii* can produce spectacular flowers, making it a prized specimen in collections.
## Conservation Status
Currently, there is limited specific information on the conservation status of *Echinopsis backebergii*. However, habitat loss and overcollection in some areas may pose threats to wild populations. Conservation efforts for cacti in general emphasize habitat protection and sustainable cultivation practices.
—
**Meta Description:**
Echinopsis backebergii is a Bolivian cactus species known for its ribbed stems and large, fragrant flowers. It is valued in cultivation for its ornamental qualities and adaptability to arid environments.