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Conophytum calculus
Also called Living Pebbles, Marble Buttons
Conophytum calculus is a small South African species of succulent plant in the family Aizoaceae.
This species is popular in cultivation. However it requires much bright light, very well-drained sand, and specific winter-watering conditions.
They thrive in pots, in a mildly-acidic, coarse, extremely well-drained, soil-sand mix. In winter they can be lightly watered (from spring right through to autumn) and given bright morning light with afternoon shade.
Conophytums are all indigenous to the winter rainfall regions of southern Africa. Conophytum calculus subsp. calculus is restricted to the "Knersvlakte" region, in the far north-west of the Western Cape Province, South Africa. Here it is confined to the area between Bitterfontein and Holsrivier. The subspecies vanzylii occurs over 100 km to the north, in the western part of Bushmanland.
Cone plant · Conophytum breve · Conophytum burgeri · Conophytum chrisolum · Button plants · Conophytum flavum · Conophytum hammeri · Jolly Buttons · Conophytum longum · Conophytum minimum · Mini Buttons · Dumpling
Text excerpted from the Wikipedia article Conophytum calculus by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
