The park is home to diverse flora and fauna. Over 4,000 plant species have been identified to date in the park area, including the world's largest flower,
Rafflesia arnoldii, and the plant with the largest unbranched inflorescence, the
titan arum. The fauna includes
Sumatran tigers, and the park is recognised under the Global Tiger Initiative as one of the 12 most important protected areas in the world for tiger conservation. A recent study shows that the Kerinci Seblat National Park in central Sumatra has the highest population of tigers on the island, estimated to be 165-190 individuals. The park also was shown to have the highest tiger occupancy rate of the protected areas, with 83% of the park showing signs of tigers. More tigers are in the Kerinci Seblat National Park than in all of
China,
Laos,
Cambodia, and
Vietnam combined. The national park is home to other kinds of big, medium, and small cats,
Sunda clouded leopard/
macan dahan (
Neofelis diardi),
marbled cat/
kucing batu (
Pardofelis marmorata),
leopard cat/
kucing hutan (
Prionailurus bengalensis), and
Asian golden cat/
kucing emas (
Catopuma temminckii). The Asian golden cats can be found everywhere in the national park, as they adapt well to various kinds of habitats, both forested and open spaces. One camera trap image gave a rare photo of a golden cat mother moving a cub to another location with her mouth. Other highly endangered species include
Sumatran dhole,
Sumatran elephants,
Sunda clouded leopard,
Malayan tapir, and
Malayan sun bear. In 2008, the International Union for Conservation of Nature added a second species of muntjak deer to the Sumatran list of fauna with the rediscovery of the
Sumatran muntjac, a deer not recorded since the late 1920s and now concluded as a new species and not subspecies. The park also protects more than 370 bird species, including the
Sumatran ground-cuckoo rediscovered in the park in 2002. The Kerinci area is home to more than 300 bird species, including 17 of Sumatra's 20 endemic birds, making it of particular importance to ornithologists and bird-watching enthusiasts. The population of Sumatran rhinoceros in the park was estimated to number around 500 in the 1980s, but due to poaching, the Kerinci Seblat population is now considered extinct. ==Conservation and threats==