Common names include gum rockrose, labdanum, common gum cistus, and brown-eyed rockrose. The reproduced scent of ambergris is predominantly a mix of labdanum and benzoin. And the base notes are of amber, musk and labdanum. It is possible that onycha was this mix of labdanum and Styrax benzoin. Moldenke writes that the myrrh of certain parts of Biblical history was actually labdanum. However labdanum could also be an ingredient of a powdered incense. Cistus creticus, which produces a resin called labdanum. When derived from natural resins it is most often created out of labdanum. Rock rose usually produces labdanum annually, during the summer, to protect itself from the heat. Others have suggested that this spice may have been labdanum, a view rejected by Maimonides. Claws were used in ancient Egypt to collect labdanum. The "Book of Genesis" contains two mentions of labdanum being carried to Egypt from Palestine. Labdanum is produced today mainly for the perfume industry. Saadya's translation for Shecheleth was the Arabic "Ladana," and ladana is our ladanum or labdanum. Labdanum exudes from the rock rose bush naturally without any incisions being made.