Micranthocereus polyanthus

Shrub to just over 1 m tall with branches from the stem bases. Ribs 14-20. Areoles well separated, central spines with 1-3 larger and up to 3 cm long, yellowish to brown; radial spines mostly 20-30; cephalium lateral, woolly white and with bristly spines. Flowers with perianth segments more or less erect. Fruit pinkish red.

E Brazil (Bahia)

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 Arrojadoa polyantha)

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Caryophyllanae
order      Caryophyllales
family       Cactaceae
genus        Micranthocereus Backeb.