Silicon is Deposited in Leaves of New Guinea Impatiens

Fig. 4. A scale on a serration of a New Guinea impatiens with the corresponding X-ray map of the Si deposition overlaid on the photograph. There is a stronger concentration of Si, as indicated by the dot map, in the area occupied by the scale indicating Si is localized in the scales.



Image from Plant Health Progress article:
Silicon is Deposited in Leaves of New Guinea Impatiens