Saupi, N., Lepun, P., Alan, R., Zakaria, M.H., Saidin, A.A. and Yusli, N.A. 2021. Morphological characterization and nutrient assessment of wild pepper, Piper umbellatum L. (Piperaceae) grown in Sarawak, Malaysia. Journal of Phytology. 13, (May 2021), 55–63. DOI:https://doi.org/10.25081/jp.2021.v13.6995.