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Espostoa lanata is a columnar cactus. It looks like Cephalocereus senilis (the Old Man of Mexico) : it is a densely hairy species, covered by a warm woolly coat and well adapted to high altitudes. It is widespread in its habitat and quite variable in size and spines, and for this reason it has received several names.
Old Lady Cactus (Mammillaria hahniana) The name may not be the most flattering (but it does look like gray hair), but it's an adorable cactus that's super-easy to grow.
Mammillaria hahniana, the old lady cactus, is a species of flowering plant in the family Cactaceae, native to central Mexico. It grows to 25 cm (10 in) tall by 50 cm (20 in) broad. It grows to 25 cm (10 in) tall by 50 cm (20 in) broad.
A cultivar, E. melanostele 'Peruvian old lady', is so-named because of its resemblance to an old lady (especially when flowering and fruiting). Hazards The spines may ...
It was first described in 1818 by Thomas Nuttall as Cactus mammillaris. [8] The specific epithet missouriensis refers to the occurrence of the species near the Missouri River. However, this description was not valid (nom. illegal ICBN article 53.1), as the name was already given by Carl Linnaeus in 1753. [ 9 ]
The name Cactus became so confused that the 1905 Vienna botanical congress rejected Cactus as a genus name, [4] and conserved Mammillaria. [ 1 ] Mammillaria is a large and diverse genus with many species often exhibiting variations due to the nature of terrain, weather, soil and other ecological factors.
The areoles often have long white hairs and dense spines. As they are covered with woolly white fuzz (modified spines), a few species in this genus are sometimes known as the old-man cactus, [3] [4] a generic name that also refers to Cephalocereus senilis or Espostoa lanata. More rarely, the old man of the mountain is also used for some species ...
The most striking feature is the shaggy coat of long, white hairs suggestive of unkempt hair on an old man. The coat is a particularly striking silvery white on the young cactus; as the plant ages the stem begins to lose its covering. The flowers are red, yellow, or white, though the plant may not flower until 10–20 years old.