Oreocereus leucotrichus (Phil.) Wagenkn.

국표에 없다.

Origin and Habitat: South Peru (Ayacucho, Arequipa, Moquegua and Tacna) and north Chile (Arica y Parinacota, Tarapacá and Antofagasta regions).
Altitude: 2000-4500 m of altitude.
Habitat: It grows in shrubland on rocky stony soil of the Andean pre-cordillera, characterized by a cool and dry climate in winter, mild and little rainy in summer. The species is abundant and the species is overall stable. The species is locally threatened by illegal collection, but this is localized, and there are no major threats.

Common Names include:
ENGLISH: Old Man Of The Andes
RUSSIAN (Русский): Арекипа беловолосистая
SPANISH (Español): Chastudo, Viejito, Tunilla, Quisco, Pichaja, Chica-chica, Chastudo peludo, Cardόn blanco, Cactus blanco, Abuelo

 

Description: Oreocereus leucotrichus is a small shrubby columnar cactus, forming dense broad clumps covered in spines. It is a much variable species.
Stem: Solitary or (usually) branching basally, curved upward often prostrate and creeping, cylindrical with green to grey-green epidermis that grow to a height of approximately 60-200 cm, 6-12 cm in diameter.
Ribs: 10 to 15(-20), closely set, flattened, with shallow cross-furrows.
Areoles: Close together with abundant white to black silky hairs 5-10 cm long, thicker on the more recent vegetation.
Spines: Stout, yellowish to maroon to orange, not becoming gray that often fall below as the plant gets old.
Central spines: 1-4 about 2-8 cm long, gently curved, longer than radials.
Radial spines: 5-10 to 15 mm long.
Flowers: Diurnal borne in small groups near the stem tips, 5-10 cm long, and 3-5 cm wide, corolla with dark red or purple red tepals and several dark purple stamina. Floral tube slender, straight, or slightly curved, red with densely pilose areoles and small scales on the ovary.
Fruits: Globose to somewhat elongate, reddish yellow to yellowish green, 2-6 cm in diameter, with thin epicarp (skin) and slightly acid pulp.
Taxonomic Notes: The species that was described as Oreocereus hendricksenianus in Arequipa is considered a different species by some authors.

Oreocereus leucotrichus (llifle.com)

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