Eriosyce kunze (Söhrens) Britton & Rose

Body solitary, spherical to shortly cylindrical. Ribs 16-18 with dense covering of spines. Flowers pink or white. Grown for the spectacular white flowers and spines. [N. gerocephala H. Itô, N. multicolor F. Ritter]

Chile

 

The similar N. coimasensis F. Ritter appears to be intermediate between this species and N. subgibbosa.

Source: Thompson, A, ; Forbes, S.; Spencer, R. (1997). Cactaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press. (as Neoporteria nidus)

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Caryophyllanae
order      Caryophyllales
family       Cactaceae
genus        Eriosyce