Northeast India-Myanmar pine forests

The Northeast India-Myanmar pine forests is a subtropical coniferous forest ecoregion in the mountains of northeastern India and adjacent portions of Myanmar (also known as Burma).

The ecoregion covers an area of 9700 km² of the Naga Hills that with the Patkai (including the Lushai Hills) and the Manipur Hills form part of the Burmese-Java arc of folded mountains that run south-east of the Himalayas and make up the India-Myanmar border region. The pine forests are found between 1500 and 2500 meters elevation, and occur in three enclaves; the largest straddles the boundary between India's Nagaland state and Myanmar, with two smaller enclaves in the southern portion of India's Mizoram state, near the Burmese border. The pine forests are surrounded at lower elevations by the predominantly broadleaf Mizoram-Manipur-Kachin rain forests and are part of the Burma Monsoon Forest transition zone between the South Asia and Indochina ecozones.

These pine forests of Northeast India and Myanmar are examples of a habitat that is rare in the Indomalaya ecozone. Tenasserim pine (Pinus latteri) is the dominant species at lower elevations, sometimes associated with dipterocarps. At higher elevations, Khasi pine (P. kesiya) and blue pine (P. wallichiana) are the predominant species, associated with other evergreens including hemlocks (Tsuga) and firs (Abies), and broadleaf trees, including oaks (Quercus) and maples (Acer), while Rhododendron, Ilex, Prunus, and bamboo (Arundinaria) are common understory shrubs.

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