The most impressive part of the flora is to be found at the central part of the island. Due to the microclimate and special edaphic factors, some tree species can cope with the dry climate and the poor soils of the island.

The most important tree species at the sand dunes are cedar (Juniperus macrocarpa) and juniper (Juniperus phoeniceum).

What makes this Juniperus forest special is the fact the Juniperus microcarpa is rarely found on sand dunes and on the other hand a mixed forest of Juniperus microcarpa and J. Phoeniceum is not very common in Greece.

Due to the climate of the area these trees grow very slowly and do not get large crowns. The average height of the trees is about 3-7m, but some single individuals observed in the eastern part of the island can grow up to 10m. The roots of these trees are very important to prevent the erosion of the dunes, because they stabilize the fragile regime of the sandy soils.

On the whole island it is obvious that due to the abiotic factors of the island the trees are struggling to survive and many dead trees or trees with dead parts are present.

The following information is related to Crete, the island close to Chrysi:

The vegetation of the Mediterranean region is completely different from that of any other region in Europe. It is dominated by trees, shrubs and bushes evergreen, that can withstand long dry summer without rain. Most herbaceous plants dry out and remain inactive during the summer, with buds dormant in the ground state, while annuals complete their life cycle before the summer. A special type of weather and contrasted, has favored the existence of certain types of vegetation that are not found anywhere else in Europe. At present there are very few intact plant communities. Those found today, have not yet been destroyed by humans or their animals or, more frequently by dense shrub communities, evergreens, known as maquis.

The dominant trees in the Mediterranean Region are the oaks and pines, accompanied by a large number of evergreen shrubs such as heather, rockrose, gorse, strawberry, etc, while the olive and carob trees are characteristic of the southern part. However, due to the old and intense occupation of the Mediterranean coasts by man, almost nothing remains of the authentic natural tree communities, and shrub communities, which are maintained by the action of the coast, fire and grazing, with consequent soil erosion, have occupied the area in which they were originally forests. In some places the soil has been eroded such that bedrock, which has been surfacing, can only sustain steppe plant, sparse, consisting of scattered herbaceous plants, however, are very interesting and rich in species that bloom in spring. On the other hand the olive trees have been widespread crop per share, often in the terraces of the hillsides.