Melodorum siamense (Taxonomic synonym Rauwenhoffia siamensis; called in local Thai name as Nom-Maew) is a plant in the family Annonaceae. Melodorum siamense is a small tree, related to the ylang-ylang. It is successfully grown in containers and is easy in care, blooming from spring till fall. Despite their plainness, the flowers of Melodorum distribute their fine perfume to great distances. It is for this that Asian gardeners include it with pleasure among their favorite garden plants. This plant can tolerate some shade; however, the lack of sunlight adversely affects flowering.