From The Collaborative International Dictionary of English v.0.48 :
Pandanus \Pan*da"nus\, prop. n. [NL., fr. Malay pandan.] (Bot.) A genus of endogenous plants, native to tropical lands from Africa to Polynesia. See Screw pine. [1913 Webster] 2. Fiber from leaves of the pandanus tree; used for woven articles (such as mats). [wns16=1] [WordNet 1.5] 3. Any of various Old World tropical palmlike trees having huge prop roots and pineapplelike leaves and edible conelike fruits; also called the screw pine. [wns16=2] [WordNet 1.5]From WordNet (r) 3.0 (2006) :
pandanus n 1: fiber from leaves of the pandanus tree; used for woven articles (such as mats) 2: any of various Old World tropical palmlike trees having huge prop roots and edible conelike fruits and leaves like pineapple leaves [syn: pandanus, screw pine]