Espostoa senilis (F.Ritter) N.P.Taylor grows shrubby or tree-like with shoots branching from the base to about half the height of growth and reaches heights of 2 to 4 metres. The slender, columnar, grey-green shoots are 4 to 6 centimetres in diameter and are completely covered with long white hairs. There are 17 to 18 barely humped ribs that are 6 to 8 millimetres high. The closely spaced areoles on them are covered with brownish grey wool. The one to three strong, yellowish brown central spines are formed late. They are up to 3 centimetres long. The more than 60 white radial spines occasionally have a darker tip and are up to 10 millimetres long. The six to twelve ribbed cephalium consists of brownish wool.
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Espostoa senilis
Espostoa senilis is ca. 16 cm tall and comes in a ø 9 cm pot.