This plant is now considered nothing else than
but the plants in cultivation are not exactly the same, the spines
are shorter and the flowers are a bit more pointed
It is a
summer grower species. Easy to cultivate but somewhat
rot prone if kept in a non
ventilated place. Requires a very fast
draining drying soil. Water regularly
in summer, but do not overwater.
full sun exposure (or
light shade) Good heat tolerance.
Hardy to at down to
-5°C for brief periods.
Usually propagated from Seeds.
(seldom produces offsets)
Photo of conspecific taxa, varieties, forms and
cultivars of Eriosyce villosa.
Eriosyce villosa fa. polyraphys
Origin:Totoral Bajo to Carrizallilo, Huasco,
Conservation status: Listed in
CITES Appendix II
- Eriosyce villosa
(Monville) Kattermann 1994
- Echinocactus polyraphis Pfeiffer
ex Salm-Dick 1950
- Neoporteria polyraphis (Pfeiff.
ex Salm-Dyck) Backeb. 1951
- Neoporteria villosa fa polyraphis
- Chileniopsis polyraphis (Pfeiffer
ex Salm-Dick) Backeberg 1935
- Bridgesia polyraphis
Eriosyce villosa is a small solitary cactus densely folded by
Stem: Subglobose to Globose becoming elongated, green or very
dark green (almost black) or dark red, up to 15 cm tall, 8 cm in
Roots: Large tuberose tap-root.
Ribs: 13-15 Deeply notched between areoles.
Spines: ± dense, long, glassy gold-brownish to black
central spines with thin bristle like grey radials, the number of spines
(especially the bristly radials) is quite variable.
Flowers: Bright magenta, borne on young areoles, 2-2,5 cm in
diameter, Pericarpels and floral tubes with long wool and gassy white
Blooming time: Blooms early in the year. Occasionally forms some
buds late in the previous year, and it can sometimes flower during the
winter, although the main burst of flowering is in April.
Fruits: Elongate, red, dehiscing by basal pores.