Etymology -The name acknowledges the work of Antonio Raimondi (1825-1890), a Peruvian geographer and naturalist.
The genus Neoraimondia is yet another genus first described by Britton and Rose in their monumental work, The Cactaceae. Originally placed in Cereus and later Pilocereus, Britton & Rose recognized one species, N. macrostibas from Peru. Later in 1997, Neocardenasia herzogiana was also moved to this genus.
N. arequipensis hails from Peru while N. herzogiana is native to Bolivia. Both species feature large brown felted areoles that continue to grow in mature stems. Unlike most cactus species, these areoles continue to produce flowers year after year. New growth featutres stout spines in each, with N. herzogiana having especially long, formidable spines when young.
Plants are tree-like, branching close to the ground or on a single trunk. Stems are ribed with 4 to 8 ribs that have wide intervals between them.
Flowers are funnel-shaped and white to pinkish. The floral tubes have scales and felted areoles and may have bristles. Fruits are round and retain the areoles. Seeds black and pitted.
In cultivation, N. herzogiana was quite common for a time being available through large commercial growers worldwide, but it has become less so. It is a farily easy plant to grow, but because of their large size, a flowering specimen is only possible where it can be grown in the ground. N. arequipensis is very seldom found in cultivation and only by those who have intentially sought out the species rather than by casual acquisition.