Chamaecereus sylvestrii (syn. Lobivia sylvestrii)

Peanut Cactus is native to the mountains of Argentina. It is found in almost every collection for it is undemanding and flowers profusely. It readily produces offshoots and forms thick clumps. The individual plants are about 10 cm (4 in) high and 1.5 cm (0.5 in) across. The soft cylindrical stem has six to ten ribs. The areoles have 10-15, bristly radial spines, 2 mm long. The lovely flowers that emerge on the sides of the. Plant are more than 7 cm long. The bright vermilion red of the petals makes an attractive contrast with the yellow of the stamens.

For good growth, it requires free-draining, humus-rich soil and ample light. Provide cool and dry conditions in winter. When grown in full sun, the plants acquire a reddish tinge. In dry conditions they are susceptible to attack by pests.

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