They are small plants, with [[Rosette (botany)|rosette]] up to 10 cm high.
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Leaves are up to 3 cm with truncate tip and rough little tubercles at the apex of the leaves. They look like limestone and are hard to be seen in the wild.
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Yellow flowers with 2 cm diameter appear in late fall.
==Cultivation==
==Cultivation==
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The plants are [[calcicole]] (=they appreciate calcaire soils)
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The plants need well drained soil and sunny exposure. Few watering in summer and not at all in winter
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Division of larger clumps is the easiest way of propagation. Seed is also possible.
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Cultivation is difficult because they fear watering excess.