Notocactus (K. Schumann) Frič (1928)

(Brasiliparodia, Malacocarpus, Wigginsia)
(greek notos = southern; latin cactus = cactus, thistle)
cactus of the south
Notocactus got its name because of its origin far distant in the south, inside of the older genus Echinocactus

globular, medium sized, partly short columnar; spines variabel, thin or broad, multi-colored or single-colored
flowers large, numerous, usually yellow with red stigma, also reddish, orange or with yellow stigma
fruits fleshy, at ripeness also thin-walled and slackly

Highslide JS


lowlands of Argentinia, Uruguay, Brazil, Paraguay
steppes and mountains

Growth period

warm, sunny and somewhat airy with cooling down in the night
prevent full sun for slightly spined species
a location outside of the greenhouse is temporarly possible
constant moisture and humidity during the growth period
permanent wetness is to prevent

Winter period

bright but not too cold at about 46–53F (8–12°C) not complete dry
some species of this genus require a warmer winter rest not colder than 53F (12°C)
(e.g. Notocactus mueller-melchersii)


the soil should be nutritious humus-rich and permeable to water
addition of coarse gravel, sand, loam and turf
Notocactus rutilans Daeniker & Krainz (1948)
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Cerro Largo


yellowish-red (flowering) Notocactus
globular, later somewhat elongated, to 4.7 in (12 cm) high, dull blue green
ribs to 24, spirally, humps small, chin shaped
areoles to 7 mm distant, white wooly
14–16 radial spines, to 5 mm long, below white, above brown red, in age yellowish to gray
2 central spines, the lowermost more longer spine is shiny brown red
flowers to 2.4 in (6 cm) Ø, pink carmine, white wooly and red brown bristled,
throat yellow white, stigma crimson, occasionally also yellow


Parodia rutilans (Daeniker & Krainz) N. P. Taylor (1987)
Ritterocactus rutilans
(Daeniker & Krainz) Doweld (1999)
CITES Appendix II
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.