Alas Purwo National Park is not only known for its connection to the ritual of Malam Satu Suro, but also for its diverse range of animals and plants. According to the official website of the Ministry of Environment and Forestry, the ecosystem of Alas Purwo includes coastal areas (coastal forests), lowland rainforests, mangrove forests, bamboo forests, savannas, and plantations.
The diversity of terrestrial flora in Alas Purwo National Park is high, with over 700 plant species ranging from undergrowth to tree-level plants of various vegetation types/formations in Alas Purwo.
Some of the characteristic and endemic plants in this national park include Manilkara kauki (dwarf medlar). Other commonly found plants include Terminalia catapa, Calophyllum inophyllum, Sterculia foetida, Barringtonia asiatica, and 10 species of bamboo.
In addition to being rich in flora species, Alas Purwo is also abundant in terrestrial fauna, including mammals, birds, reptiles, and amphibians.
