Ferocactus Britton & Rose (1922)
(Latin ferus = wild, latin cactus = cactus)
wild (spination) cactus;
because of the strong spination of some species
globe or barrel cactus, flat round or later columnar, usually very large, clumping, forming clusters
ribs numerous; spines strong, often in bright colors
central spine are frequent hooked, flat
flowers compact, yellow or red, pericarpel with dense joints
fruits opens at the base |
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Distribution |
south of USA - California, Utha, Nevada, Arizona, New Mexico, Texas
Mexico - to Oaxaca
very warm steppes |
Growth period |
much of sun and heat - for a colored spination is much of sun necessary
sparse to moderate watering after drying of the soil
this genus is sensitive against moisture and grow very slowly |
Winter period |
bright and dry at 5–10°C (41–50°F)
Ferocactus flavovirens and F. latispinus not under 12°C (53°F)
this two species could get epidermis damages with to low temperatures
(light brown stains) |
Substrat |
pure minerally with less of loam, very permeable to water |
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| Ferocactus wislizeni (Engelmann) Britton & Rose (1922) |
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Habitat |
USA
Texas, New Mexico, Arizona - Sonora Desert, Chihuahuan Desert
Mexico
Sonora, Sinola, Chihuahua - Sonora Desert, Chihuahuan Desert
in about 300–1700 m (984–5577 ft) altitude
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Description |
named after Dr. Wislizenus
at first globular later cylindrical, to 2 m (6.5 ft) tall and 80 cm (31.5 in) Ø, usually simple
25 ribs, 3 cm (1.2 in) high
areoles distant, brown
spines different, white to red or gray
± 12 radial spines, to 5 cm (2 in) long, bristly or fine acicular, white to red
4 central spines, 8–10 cm (3.1–3.9 in) long, much stronger, hooped, flattened, strong hooks
flowers to 6 cm (2.3 in) long, yellow to yellowish-orange to red
fruits 5 cm (2 in) long, yellow
seeds longish ovate, dull black
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Comment |
this species required a very hot and sunny location
a minerally and nutrient rich soil with some of loam is recommendable
in winter a cool and dry location, short frost periods will be survive |
Synonyms |
Echinocactus wislizeni Engelmann (1848) |
| CITES |
Appendix II |
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| Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available. |
| Pictures 4 to 6 of the collection by Edward Bartlett; Tucson, Arizona. |
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