This article presents an overview of plant life-forms and their classification. For the purpose of this article, 'plants' are defined as 'photoautotrophic eukaryotes'. This definition is inclusive of all algal lineages and the monophyletic embryophytes (i.e., land plants including mosses, liverworts, and hornworts). The first section discusses briefly the historical background of the life-form concept and life-form classification systems. Subsequent sections provide a more detailed overview of the various life-form classification systems for the algae and the land plants.

Because much of plant morphology is determined by metabolic processes that are influenced by the vagaries of the physical environment (temperature, light conditions, the availability of water, minerals, carbon dioxide, and oxygen; mechanical perturbation and herbivory), the habitat preference and life-form of many species are closely related. For this reason, plant life-form classification systems can stress either morphological, structural, or developmental (phenotypic) criteria or ambient ecological conditions. This duality in plant life-form classifications is emphasized throughout this article.

10 Ways To Fight Off Cancer

10 Ways To Fight Off Cancer

Learning About 10 Ways Fight Off Cancer Can Have Amazing Benefits For Your Life The Best Tips On How To Keep This Killer At Bay Discovering that you or a loved one has cancer can be utterly terrifying. All the same, once you comprehend the causes of cancer and learn how to reverse those causes, you or your loved one may have more than a fighting chance of beating out cancer.

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