KnowraRafflesia arnoldiiLinked fromLinked fromThe 2 pages that link to Rafflesia arnoldii, each with the reason it gives.All 2Broader topic 2SumatraBroader topic: Its unusual blooms are among Sumatra’s best-known botanical wonders.Borneo lowland rain forestsBroader topic: This Bornean forest plant exemplifies the region’s unusual botanical diversity.