An updated checklist of the vulnerable bamboo Schizostachyum (Poaceae: Bambusoideae) in the Bukit Barisan Selatan National Park, Sumatra, Indonesia

The current study examines the genus Schizostachyum in the Bukit Barisan Selatan National Park (BBSNP) in Sumatra, Indonesia. This bamboo genus is native to Indonesia and is one of the most diverse in Sumatra. The BBSNP is recognized as a World Heritage Site. However, the current data of Schizostachyum spp. in Sumatra, especially in the BBSNP area, has not been well documented. The study of Schizostachyum at the BBSNP needs to be done. The field survey was conducted in December 2022 and June 2023 using the exploration method to explore and record the Schizostachyum bamboo. The survey was undertaken in three resorts, namely Sukaraja Resort, Pemerihan Resort, and Balik Bukit Resort. The results discovered five Schizostachyum, namely Schizostachyum brachycladum, Schizostachyum caudatum, Schizostachyum cf. silicatum, Schizostachyum zollingeri, and an unidentified species. A novel candidate was found scrambling in the hills along the river area of the enclaved village and spreading to the secondary forest of Kubu Perahu, Balik Bukit Resort. This paper offered an updated checklist of Schizostachyum spp. from BBSNP, including the proper botanical name, synonyms, local name, locality of occurrence, and citation of voucher herbarium specimens.