National Flower – Indonesia There are three categories of floral emblem that symbolize Indonesia; puspa bangsa (national flower) of Indonesia is Melati (Jasminum sambac), puspa pesona (flower of charm) is Anggrek Bulan (Moon Orchid) (Phalaenopsis amabilis) and puspa langka (rare flower) is Padma Raksasa Rafflesia (Rafflesia arnoldii). All three were chosen on World Environment Day in 1990 and enforced by law through Presidential Decree (Keputusan Presiden) No. 4 1993. On the other occasion Bunga Bangkai (Titan arum) was also added as puspa langka together with Rafflesia.

Melati (jasminum sambac), a small white flower with sweet fragrance, has long been considered as a sacred flower in Indonesian tradition, as it symbolizes purity, sacredness, graceful simplicity and sincerity. For example, on her wedding day, a traditional Indonesian bride’s hair is often adorned with arrangements of jasmine, while the groom’s kris is often adorned with a lock of jasmine. However, jasmine is also often used as floral offering for spirits and deities, and also often present during funerals which gave it its mystical and sacred properties.
Moon Orchid was chosen for its beauty, while the other two rare flowers,
Rafflesia arnoldii and Titan arum were chosen to demonstrate uniqueness and Indonesian rich biodiversity.
Source: wikipedia