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 sulcata (G. Engelmann) Britton & Rose (1923) |
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Field number |
SB486 - collected by Steven Brack |
Habitat |
USA
Texas - Val Verde County
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Description |
furrowed Coryphantha
up to 12 cm (4.7 in) Ø, simple
tubercles large, to 1,2 cm (0.4 in) long, not upward curved
12–14 radial spines, thin, straight, white
central spine initially absent, later several, nearly adjacent,
1 thereof stronger, upward bended
flowers about 5 cm (1.9 in) Ø, yellow with red center
fruits ellipsoid, green, to 3 cm (1.2 in)
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Synonyms |
Mammillaria sulcata G. Engelmann (1845)
Cactus scolymoides var. sulcatus (G. Engelmann) J. M. Coulter (1898)
Mammillaria radians var. sulcata (G. Engelmann) K. Schumann (1898)
Cactus sulcatus (G. Engelmann) Small (1903)
Coryphantha radians var. sulcata (G. Engelmann) Y. Ito (1952) |
| CITES |
Appendix II |
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