Cephalocereus Pfeiffer (1838)
(greek kephale = head, and Cereus latin = waxy, candle)
a genus of columnar cacti,
because of these columnar cacti formed cephalien
at the head flower forming Cereus
columns tall, few branched, stemm ribbed
areolae with woll felt , with spines, hairs and bristles
cephalium lateral, first appears at about 6 m (19.7 ft) tall plants, light brown to yellow, shaggy
flowers short, funnel shaped, radial
fruits bald or scaly and hairy, fleshy
seeds smooth or bulging, shiny black |
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Distribution |
Mexico - Hidalgo, Guanajuato
warm steppes
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Growth period |
bright, sunny and humid heat, in the spring to protect something from the blazing sun
prevent pollution of the hair to a position under glass is required
because of the high moisture sensitivity is watered sparingly from below
This species is very sensitive to moisture in cool weather
in midsummer a growth break grant by dryness |
Winter period |
bright and dry at 12–15°C (53–59°F), never for a long time under 10°C (50°F) |
Substrat |
nutrient-rich, well-permeable and low in humus |
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| Cephalocereus senilis (H. Haworth) L. Pfeiffer (1838) |
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Habitat |
Mexico
Guanajuato, Hidalgo,
Barranca Venados and
Barranca de Metztitlan
the area is also known as the "Valley of the old men" |
Description |
senile (hairy) Cephalocereus, known as "old man"
up to15 m (49 ft) tall, usually no branches
light green, white hairy later gray
ribs 20–30; areoles dense
3–5 spines, up to 4 cm (1.6 in) long, yellowish or gray
20–30 hairs, long, intertwined, mostly downward, white to gray
cephalium from about 6 m (19.7 ft) tall, first unilaterally,
later round the trunk ,wooly, gray
flowers 7,5 cm (2.9 in)
Ø, from cephalium, pale yellow,
tube 5 cm (1.9 in) long, ± pink hairy; ovary hairy, stigma cream
fruits and fruit flesh red
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Synonyms |
Cactus senilis H. Haworth (1824)
Cereus senilis (H. Haworth) A. P. De Candolle (1828)
Pilocereus senilis (H. Haworth) C. Lemaire (1839)
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CITES |
Appendix II |
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