Cephalocereus senilis
Cephalocereus senilis
Cephalocereus senilis is a species of the genus Cephalocereus in the cactus family ( Cactaceae ). The specific epithet means senilis, senile '. Trivial names are " old man main " and " Viejo ."
Description
Cephalocereus senilis grows with erect, pale green, later graying shoots, branched only at the base and reaches a diameter of up to 30 centimeters in stature heights of up to 15 meters. There are 20 to 30 low and only slightly gekebte ribs available. The 1-5 strong central spines are yellowish to greyish and 1-5 inches long. The 20 to 30 hair-like spines are white and 6 to 12 inches long. The initially formed only on one side Pseudocephalium later covers the entire top of the shoots. It consists of dense white hairs.
The funnel-shaped, yellowish- pink flowers are 8-9 inches long and can reach diameter 7-8 cm. Your Perikarpell and the corolla tube are hairy and busy with a few scales. The fruits are obovate little scaly and have a length from 2.5 to 3 centimeters.
Distribution, systematics and hazard
Cephalocereus senilis is common in the Mexican states of Hidalgo, Guanajuato and Veracruz. The first description as Cactus senilis was published in 1824 by Adrian Hardy Haworth. Ludwig Karl Georg Pfeiffer she put 1838 in the genus Cephalocereus.
In the Red List of Threatened Species IUCN, the type is called " Endangered ( EN ) ', ie performed as endangered.