摘要：High mountain regions are characterized by varied range of thermal conditions, short growing season and soils poor in nutrients. Because their high biodiversity, alpine habitats represent a great interest for world wild researchers. Many of those consider that alpine areas are harsh environments because their extreme conditions. In order to adapt at this environmental conditions, alpine plants have developed a series of defeating mechanisms. In this respect, the aim of this review is to explore some of those mechanisms that are involved in plants' adaptation process. Thus, this paper reflects the current status of knowledge regarding the adaptive strategies of some high mountain plant species. Irradiation, temperature and substrate are the environment conditions that are highlighted and for each were described a series of adaptive strategies. It was established that due to specific environmental conditions, which characterize the high mountains areas, the vegetation consists predominantly of shorter shrubs, meadows and plants growing on bare substrate. Plant species belonging to this vegetation are short, have low growth rates and high tolerance to low temperature. Also, in this paper, we try to clarify the "extreme condition" term by correlating it with the plants' adaptation capacity. Based on both personal and others authors works, we suggest a definition on this terms
