See Plants. The Hebrew term shecheleth of Exodus 30:34 is viewed by some as a reference to onycha. Other scholars dispute this and suggest instead that it is a reference to the finger-like tip of the strombus snail or to a material that had been obtained from the burning of human fingernails. The word appears in the text which lists the various types of materials out of which the congregation were called upon to produce sacred incense for the Ark.
The onycha is a white variety of rock rose that has fingernail-like petals. The petals are used for the making of a scented resin.
Habitat:Egypt, South-west Europe.