"- Studies have suggested antidiabetic, hypolipidemic, antioxidant, anti-inflammatory, hepatoprotective, glucuronidase inhibitory, anticancer, antiproliferative, hepatoprotective, glucokinase inhibitory, acethylcholinesterase inhibitory, properties,"
http://www.stuartxchange.org/HairyWaterLilyThis seems to be the most I could find about it, and if it has the properties mentioned, I would find it to be a reasonable assumption that ingesting them would not have any issues with toxicity. Wish I could help more, but with the information found there, I would feel confident and safe in consuming some or the resin that you were sent.
Blessings!
May we continue to be blessed