Echinocactus Link & Otto (1827)

(latin echinus = hedgehog, latin Cactus = cactus)
hedgehog cactus

because of globular plants and spination
ribs numeros, strong distinct
spines strong, straight or slightly curved, not hooked
flowers short, compact, tube wooly, yellow, exceptionally red
fruits oblong, wooly, below opens
seeds shiny brown or black

Highslide JS
 

Distribution

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

Growth period

many sun and heat
not to often pouring, this genus is slightly sensitive to moisture

Winter period

light and dry, minimum 12–15°C (53–59°F)
not for longer under 10°C (50°F)

Substrat

well-drained and nutrient-rich, with the addition of clay and crushed bricks or similar
   
Echinocactus horizonthalonius Lemaire (1839)
 
Highslide JS
  Highslide JS   Highslide JS
         
Highslide JS   Highslide JS    
         

Habitat

USA
Arizona, New Mexico, Texas - Sonora Desert
Mexico
to south to San Luis Potosí - Sonora Desert, Chihuahuan Desert
in about 1000 m (3281 ft) altitude between grass and shrubs

Description

Echinocactus with horizontal ringed spines
flat globular to elongated, to 25 cm (9.8 in) Ø, gray pruinose
ribs 8–13, straight or spiral

6–9 spines, to 4 cm (1.5 in) long, round to flatened, talon like curved,
mostly one to center, dark reddish to amber
flowers about 3 cm (1.2 in) long, pale red to reddish
fruits 3 cm (1.2 in) long, oblong, strong wooly, red
seeds 0,3 cm (0.12 in) large, brown black

Comment

needed to flower a hot full sunny location
only low watering and very porous, mineral substrat needed
minimum temperature, about 5°C (41°F) is possible
Synonyms Meyerocactus horizonthalonius (Lemaire) Doweld (1996)
CITES Appendix II
 
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.

 

 

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