Citrus 'Red Lime' (Citrus × aurantiifolia (Christm.) Swingle ), The red lime is an exotic hybrid, most likely a cross between a kumquat and Rangpur lime. The fruit and its flesh take on an orange-red colour. These plants are almost thornless.
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The grower instructs; that the fruits are more for decoration than consumption.
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The English word lime was derived, via Spanish then French, from the Arabic word ليمة līma, which is, in turn, a derivation of the Persian word limu. Key is from Florida Keys, where the fruit was naturalised. The earliest known use of the name is from 1905, where the fruit was described as "the finest on the market. It is aromatic, juicy, and highly superior to the lemon.
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The generic name originated from Latin, where it referred to either the plant now known as citron (C. medica) or a conifer tree (Thuja). It is related to the ancient Greek word for cedar, κέδρος (kédros).
Citrus × aurantiifolia 'Red Lime'
Citrus 'Red Lime' ( Citrus × aurantiifolia (Christm.) Swingle ) is ca. 80 cm tall and comes in a 22 cm pot.