Original: The leaves are ovate 2.5 - 9 cm (1 - 3.5 in) long, resembling orange leaves (the scientific name aurantifolia refers to this resemblance to the leaves of the orange, C. aurantium).
Simplified: The leaves are ovate 2.5 - 9 cm (1 - 3.5 in) long. They resemble orange leaves (the scientific name aurantiifolia refers to the leaves' resemblance).