Pinus dalatensis

Pinus dalatensis, also known as Vietnamese white pine or Dalat pine, is a species of pine endemic to Indochina. In Vietnam it grows in the mountains of the central and south-central parts of the country at elevations of 1400 to 2300 m. Only recently confirmed from Laos, the population located within the Nakai-Nam Theun Biodiversity Conservation Area is the largest, at the lowest elevation, and the northernmost of the known populations of P. dalatensis.

Description
Pinus dalatensis is a medium-sized evergreen tree growing to 30 to 40 m tall. It is a member of the white pine group, Pinus subgenus Strobus, and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, with a deciduous sheath. The needles are finely serrated, and (3-)5–14 cm long.

The cones are slender, 6 to 23 cm long and 2 to 4 cm broad (closed), opening to 3 to 9 cm broad; the scales are thin and flexible. The seeds are small, 6 to 8 mm long, and have a long slender wing 18 to 25 mm long. It is most closely related to the blue pine Pinus wallichiana from the Himalaya.

Subspecies
It is divided into two subspecies:
 * Pinus dalatensis subsp. dalatensis. Da Lat region, between 11°50'N and 12°30'N. Cones 6–17 cm long.
 * Pinus dalatensis subsp. procera Businský. Central Vietnam, between 15°00'N and 16°20'N. Cones 13–23 cm long.