Ixora javanica (Blume) DC.

Angiosperms
Order: Gentianales
Family: Rubiaceae
Subfamily: Ixoridinae
Genus: Ixora

Common names: Common red ixora, Red ixora, Javanese ixora
Thai names: เข็มทอง Khem thong, เข็มแสด Khem saet, เข็มแดง Khem daeng (Peninsular); เข็ม Khem, อ้อ O (Nakhon Si Thammarat); บือเจาะปูโยะ Pue-cho-pu-yo, ยาราง Ya-rang (Malay-Narathiwat)
Chinese names:
Distribution: Brunei, Cambodia, Indonesia, Lao, Malaysia, Singapore, Sri Lanka, Thailand
Image locations: Chiang Mai
Map info: Provinces are highlighted according to phytogeographical areas as used in the Flora of Thailand project.
Additional notes:

Images of Ixora javanica from Thailand.

Ixora javanica, Chom Thong, Chiang Mai, November 2016

Ixora javanica, Chom Thong, Chiang Mai, November 2016

References:
The Plant List
BGO Plant Database, The Botanical Garden Organization
GBIF