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 viridescens (Torrey & A. Gray) Britton & Rose (1922) |
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Habitat |
USA
California
Mexico
Baja California |
Description |
green nascent Ferocactus
globularly to thick cylindrically, to 17.7 in (45 cm) high, to 13.7 in (35 cm) Ø,
simple or clumping, deeply green, somewhat shiny
ribs 13–21, somewhat wavy
flowering size areoles with red glands
9–20 radial spines, to 0.8 in (2 cm) long, spreading to all sides
4 central spines, to 1.4 in (3.5 cm) long, flattened at below, partly somewhat bended
flowers 1.6 in (4 cm) long, yellowish green
fruits reddish
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Comment |
Because of its origin, southern California to Baja California,
shouldn't have this species temperatures below than 50 F (10°C) during the winter period. |
Synonyms |
Echinocactus viridescens Torrey & A. Gray (1840) |
| CITES |
Appendix II |
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