On the inca trail there are many trees.
these are some species you will see on the Third day.

Nogal: (Juglans Neotropica) (Junglanoacea), A tree that grows from 50 up to 65 feet, between 3,300 and 9850 feet a.s.l. Its wood, dun-blackish colored, is excellent for the cabinet making and guitars manufacturing. From the bark, leaves and fruits can be extracted black and brown dye, used for dying wool. An infusion of the leaves gives a black hair dye. The seeds are edible.

Lucuma: (Lucuma Abovata) (Sapotacea), A tree that grows up to 50 feet. It ca be found from Ecuador to Chile between 2,300 and 9,850 feet a.s.l. Its delicious fruit is eaten in its natural way and in desserts.
Lucuma ice cream is found in every city in Peru. In the Pre-Inca period, this fruit was cultivated in the coast by the Peruvians. It was pretty common in the Urubamba valley in the Inca Period.

Nispero: (Mespilus Germanica) (Rosacea), An European tree that grows from 16 up to 26 feet. It is cultivated in all the Urubamba Valley. they plant is fruitful from April to July. The orange color of its fruits enhances the Valley. With its fruit we can prepare homenade food and marmalades. It ca also be eaten in its natural way.

Sauco: (Sambucus Peruviana) (Adoxacea), A tree that grows up to 40 feet. It grows  in all parts of Peru between 6,550 and 11,500 feet a.s.l. It is cultivated around houses and Family gardens. Marmalade and sweets are prepared with the fruits (January to March). The leaves keep insects away. Its wood is used for building, cabinet making and to to make quenas (flutes). It also has several medical properites.