Echinocactus Link & Otto (1827)

(Latin "echinus" = hedgehog; Latin "Cactus" = cactus)
hedgehog cactus

because of its globular apperance and spination
numerous strongly distinct ribs
strong spines, straight or slightly curved, not hooked
short flowers, compact, tube wooly, yellow, exceptionally red
fruits oblong, wooly, opens at the base
seeds shiny brown or black

Highslide JS


USA - California, Arizona, New Mexico, Texas, Nevada, Utah
Mexico - San Luis Potosí to Hidalgo
very warm steppes

Growth period

full sun exposure and heat
sparingly watering, this genus is slightly sensitive to too much moisture

Winter period

bright and dry at a minimum temperature of 53–59°F (12–15°C)
a temperature below 50°F (10°C) should be prevented for a longer time


well-drained and nutrient-rich, with the addition of clay and crushed bricks or similar
Echinocactus grusonii H. Hildmann (1886)
Highslide JS
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Queretaro, Hidalgo - very local on cliffy hillsides or cliffs


named after H. Gruson
to 4.2 ft (1.30 m) high, 2.6 ft (80 cm) Ø, light green, apex with white wool
more than 30 ribs

areoles flow together near the apex in age
spines yellow, the strongest flattened and with transverse furrows
8–10 radial spines, to 1.2 in (3 cm) long
4 central spines, about 1.9 in (5 cm) long, usually transversely crossed
flowers to 2.3 in (6 cm) long, 2 in (5 cm) Ø, bell shaped, outside brownish, inside cadmium yellow
fruits to 0.8 in (2 cm) long, hidden in dense white wool
seeds about 1.5 mm long




Appendix II
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.