The threatened plant species in Central Kalimantan of Indonesia and its utilization potencies

Abstract

According to the IUCN Red List of plant species in Indonesia in 2021, the amount and the status of those threatened plant species are one Extinct, three Extinct in the Wild, and 856 Critically Endangered, Endangered, and Vulnerable. The ex-situ plant conservation of the threatened plants becomes very urgent in Indonesia including in Kalimantan. The purpose of this study is to find out the species and the categories of the threatened plant species distributed in Central Kalimantan of Indonesia, as well as their potential utilization. At least 125 threatened plant species of Indonesia were distributed in Central Kalimantan. The plant family with the greatest number of threatened plant species distributed in Central Kalimantan was Dipterocarpaceae (46 spp), and Myristicaceae (12 spp). In the total of those threatened plant species, 2 spp were in the category of Extinct in the Wild (EW), 16 spp Critical Endangered (CR), 30 spp Endangered (EN), and 77 spp Vulnerable (VU). Those species had the potency to be utilized for timber, food source/fruit, medicinal, and ornamental plants. The district that possessed the most threatened plant species was Katingan (40 spp.) followed by Kotawaringin Timur (37 spp.), Murung Raya (35 spp.), and Barito Utara (29 spp).