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 crassigibbus F. Ritter (1970)
Highslide JS
  Highslide JS   Highslide JS

Filed number

HU05 - collected by Leopold Horst


Rio Grande do Sul - around Lavras do Sul


thick humped Notocactus
flat globular, 2–6.3 in (5–16 cm) Ø, fresh-green
ribs 10–15, edgeless, strong humped
areoles 8–15 mm distant, circular, white, between the humps
spines mostly bended, whippy, pale yellow
7–10 radial spines, 0.4–1 in (1–2.5 cm) long, adjacent
1 central spine, 0.6–1.2 in (1.5–3 cm) long, downward directed
flowers very large, 2–2.4 in (5–6 cm) long, sulfur yellow, ovary strong white wooly,
pistil pale yellow, 11 stigma, purple
fruits green, white wooly with yellow bristles


Parodia crassigibba (F. Ritter) N. P. Taylor (1987)
Ritterocactus crassigibbus
(F. Ritter) Doweld (1999)
CITES Appendix II
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.