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 elephantidens (Lemaire) Lemaire (1868)
 
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Habitat

Mexico
Morelos, Puebla, Oaxaca, Querétaro, Jalisco, Guanajuato, Aguascalientes, Zacatecas

Description

Elephant teeth shaped Coryphantha
pressed globular, to 5.5 in (14 cm) high, 7.5 in (19 cm) broad
tubercles to 1.6 in (4 cm) long, thick, very big, somewhat flattened, between dense wooly axils
areoles only at beginning slight woolly
8 spines, to 0.8 in (2 cm) long, strong, yellowish, later brownish

flowers to 3.9 in (10 cm) Ø, gorgeous deep pink or white with red center

Synonyms

Mammillaria elephantidens Lemaire (1838)
Echinocactus elephantidens
(Lemaire) Poselger (1853)
Cactus elephantidens
(Lemaire) 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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