This document describes the biology of Ananas comosus var. comosus (pineapple), with particular reference to the Australian environment, cultivation and use. Information included relates to the taxonomy and origins of cultivated A. comosus var. comosus (A. comosus), general descriptions of its morphology, reproductive biology, biochemistry, biotic and abiotic interactions. This document also addresses the potential for gene transfer to occur to closely related species. The purpose of this document is to provide baseline information about the parent organisms for use in risk assessments of genetically modified (GM) A. comosus that may be released into the Australian environment.