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Abstract
ABSTRACT
Annonaceae is a large family, distributed mainly in tropical and subtropical low mountains. The results of the survey and collection of samples on 21 transects in Sao La Nature Reserve, Thua Thien Hue province from December 2021 to December 2022 have identified 35 species belonging to 13 genera, of which 1 genus and 9 species are added to the List of Plants in Sao La NR, 2018. In the study area, the most diverse genus is Goniothalamus with 9 species. The species from the Annonaceae family has been employed for a variety of purposes including essential oil (28 species), traditional medicines (16 species), ornamental plants (5 species), timber (5 species), edible fruit (2 species), and unknown values (4 species). Most of the habitat types found and recorded of species of the Annonaceae family are mainly secondary forest (32 species), shrubland, forest edge (20 species), primary forest (12 species), and streamside (8 species). The Annonaceae family has 3 main geographical factors including the ancient tropical element (14,29%), the Asian tropical element (51,43%), and the Vietnamese endemic element (34.28%).