Ah, the intricacies of the Web! I was looking for info on the uptake of lead in bramble fruits and came up with soap nuts.

Does anyone know anything about soapnuts? They are a plant with a berry that can be used for soap. They are of the Sapindus genus.

Wikipedia: http://en.wikipedia.org/wiki/Sapindus

Soap Nuts Pro (a commercial site): http://www.soapnuts.pro/?gclid=COXNgenCgZ8CFQxbagodt0u5aQ

Sue