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Description ![]() Cotyledon orbiculata is widespread throughout South Africa, but is usually confined to rocky outcrops in grassland fynbos and karoo regions. Black frost will damage the flowers, if planted in an unprotected spot, but the plant itself will tolerate moderate frosts. The genus name Cotyledon comes from the Greek word kotyledon that means cup-shaped hollow, this refers to the leaves of some species. The species name orbiculata comes from the Latin word meaning round circle. The name pig's ears is derived from the oval shape of the grey-green leaves of some forms, which are very variable with a red or pale margins. The genus Cotyledon consists of 10 species in South Africa. Other cotyledons recommended include C. woodii, C. velutina and C. papillaris. Another species, C. tomentosa, is a woolly shrublet with pretty red and yellow, bell-shaped flowers. The brightly coloured flowers attract bees and birds, which feed on the nectar of the plant. The silver-grey leaves of some forms owe much of their attractive colouring to a powdery white coating which may assist in reflecting much of the sun's heat to prevent excessive water loss from the thick succulent leaves. This is a well-known medicinal plant. The fleshy part of the leaf is applied by many South Africans to soften and remove hard corns and warts. The Southern Sotho use a dried leaf as a protective charm for an orphan child and as a plaything. In the Willowmore District, the heated leaf is used as a poultice for boils and other accessible inflammations, in particular, earache. |