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Simaroubaceae - amargo, bitter-wood, Surinam-Bitterholz
„It is a shrub or rarely a small tree, growing to 3 m tall … native to Costa Rica, Nicaragua, Panama, Brasil, Peru, Venezuela, Suriname, Colombia, Argentina, French Guiana and Guyana. Q. amara is widely planted outside its native range.“ http://en.wikipedia.org/wiki/Quassia_amara
Extracts of Quassia wood or bark act as a natural insecticide. http://oekologischerlandbau.jki.bund.de/index.php?menuid=52
„French Guiana (North-East Amazonia) records high malaria incidence rates. The traditional antimalarial remedy most widespread there is a simple tea made out from Quassia amara L. leaves (Simaroubaceae). This herbal tea displays an excellent antimalarial activity both in vitro and in vivo. A known quassinoid, simalikalactone D (SkD), was identified as the active compound, with an IC50 value of 10 nM against FcB1 Plasmodium falciparum chloroquine resistant strain in vitro. Lastly, it inhibits 50% of Plasmodium yoelii yoelii rodent malaria parasite at 3.7 mg/kg/day in vivo by oral route. These findings confirm the traditional use of this herbal tea.“ [Simalikalactone D is responsible for the antimalarial properties of an amazonian traditional remedy made with Quassia amara L. (Simaroubaceae), S. Bertani, E. Houël, D. Stien, L. Chevolot, V. Jullian, G. Garavito, G. Bourdy, E. Deharo, Journal of Ethnopharmacology, Vol.108 (1), 2006, 155–157]