Coryphantha (G. Engelmann) Lemaire (1868)
(Greek koryphe = top, apex; Greek anthos = flower)
apex flowering
globular or longish, sparsely clumping, tubercles with a through furrow
spines strong and usually bended
flowers central at the apex, usually yellow, also with a red throat or white and red
fruits greenish, nacked; seeds brownish |
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Distribution |
British Columbia, south Canada, USA to south Mexico
warm arid areas |
Growth period |
requires a full sunny, airy and hot location
this genus is sensitive to too much moisture, therefor sparsely and carefully watering keep the root neck dry
during the flowering period slightly more watering, if not the buds could dry up
during mid summer give a short dry period at a sunny location
this genus is very recommended for a cultivation in a cold frame or a very bright greenhouse |
Winter period |
dry and bright at 4–12°C (39–53°F) |
Substrat |
choose a minerally soil with a addition of clay, keep the root neck dry by gravel or pumice |
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| Coryphantha radians (A. P. De Candolle) Britton & Rose (1923) |
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Habitat |
Mexiko
Durango, San Luis Potosí,
Guanajuato, Querétaro, Hidalgo |
Description |
radial (spined) Coryphantha
5–7 cm (1.9–2.7 in) Ø, globular to slightly cylindrical, green
apex spined and felted
12–20 radial spines, to 1,2 cm long, stiff, pectinate arranged, yellowish,
also with brown tips
central spine absent
flowers to about 7 cm (2.7 in)
Ø, citrus yellow
fruits green
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Synonyms |
Mammillaria radians A. P. De Candolle (1828)
Echinocactus radians (A. P. De Candolle) H. Poselger (1853)
Cactus radians (A. P. De Candolle) E. Kuntze (1891)
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CITES |
Appendix II |
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