Thailand 2025 - Asian International Stamp Exhibition

งานแสดงตราไปรษณียากรภาคพื้นเอเชีย พ.ศ. 2568

2025/2568-08-08

To commemorate the Asian International Stamp Exhibition 2025 & the 3rd Thailand International Numismatic Expo 2025 (TINE 2025), which was held from 8 to 12 August 2025 at the General Post Office in Bang Rak, Bangkok.

2025/26

10 Baht

10 Baht

2 Baht

n/a

30 x 48 mm

100,000 pieces

n/a

Image of Kham Yaad Sri Sirindhorn (คำหยาดศรีสิรินธร), a newly discovered plant species with the botanical name Impatiens sirindhorniae, which has been officially registered as a new species to science by researchers from the Department of National Parks, Wildlife and Plant Conservation. It was found in the Phu Khor–Phu Kratae (ภูค้อ-ภูกระแต) Wildlife Sanctuary in Loei Province. The species was graciously named by and in honour of Princess Maha Chakri Sirindhorn, referencing its attractive purplish-pink zygomorphic flowers, which bloom during the rainy season. According to the sih prajam wan system, in which each day of the week is associated with a specific colour, purple corresponds to Saturday—the day of Princess Sirindhorn’s birth. This significant discovery highlights ongoing efforts to conserve rare plant species in Thailand’s unique and specialised habitats. Impatiens sirindhorniae is endemic to Thailand and was first described in 2001. It is a rare perennial herb in the family Balsaminaceae, found only in northeastern Thailand, particularly in limestone-rich areas, typically in moist, shaded environments like forest understories and cliff bases. The species is informally referred to by the common botanical name Sirindhorn’s balsam.

Department of National Parks, Wildlife and Plant Conservation, General Post Office, Bangkok, Loei, maha, Chakri, Sirindhorn, phu, sih prajam wan