. "Brazilian rubber" . . . . "hevea rubber" . . . . "Par\u00E1 rubber tree" . "rubber tree" . "Hevea" . . "Par\u00E1 rubber" . . "H. brasiliensis" . . . "par\u00E1 rubber tree" . "Hevea brasiliensis" . "rubber trees" . . "Rubber plants" . . . . . . "Hevea braziliensis" . "rubber tree plantations" . "rubber plant" . "Hevea brasiliensis" . "Para Rubber" . . "rubber" . . . "\u201Ccaoutchouc\u201D trees" . "rubber plantation" . . "Rubber" . . . "Para rubber tree" . . . "rubber plantations" . "hevea brasiliensis" . . . . . . . .