Coryphantha (G. Engelmann) Lemaire (1868)

(greek koryphe = top, tuft, greek anthos = flower)
tuft flowering
globular or elongated, few clumping, tubercles with furrow

spines strong, often curved
flowers central, most yellow, also with red center or white and red
fruits greenish, bare; seeds brownish

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Distribution

British Columbia, south Canada, USA to south Mexico
warm arid areas

Growth period

full sun, breezy and warm location
this genus ist sensitive to moisture, therefore rarly pour and root neck keep dry
during flower period slightly more moisture, buds can dry up
in mid summer short dry period on sunny location
this genus is very advisable for cultivation in a cold frame or a greenhouse

Winter period

dry and light at 4–12°C (39–53°F)

Substrat

mineral with the addition of clay, root neck between cravel or crushed pumice
   
Coryphantha cornifera (De Candolle) Lemaire (1868)
 
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Habitat

Mexico
Querétaro, Guanajuato, San Luis Potosí, Jalisco, and eastern Zacatecas
Hidalgo - region around of Ixmiquilpan
on lime gravel on low hills and plains

Description

horn wearing Coryphantha
globular to short cylindrical, to 4.7 in (12 cm) high, gray-green
tubercles to 1 in (2.5 cm) long, almost rhombical
axils and areoles on young plants with white wool

7–9 radial spines, to 9 mm long, wax yellow
1 central spine, to 0.6 in (1.5 cm) long, stronger, curved, upside blackish, below brown
flowers to 2.4 in (6 cm) long, lemon yellow, stamens rose red, anther yellow

Synonyms

Mammillaria cornifera De Candolle (1828)
Echinocactus cornifer
(De Candolle) Poselger (1853)
Cactus cornifer (De Candolle) Kuntze (1891)

CITES

Appendix II
 
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.

 

 

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