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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 ...
Thermometer for measuring air and sea surface temperature; Barometer for measuring atmospheric pressure; Hygrometer for measuring humidity; Anemometer for measuring wind speed; Pyranometer for measuring solar radiation; Rain gauge for measuring liquid precipitation over a set period of time; Wind sock for measuring general wind speed and wind ...
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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 prickly mysterious giant grows in the desolate Sonoran desert covering southern Arizona and northern Mexico, but it might be in jeopardy. Daniel Winkler, research ecologist with the United ...
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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.