Ngawang Dema

Habitat Ecology and Human-Induced Threats to Nardostachys jatamansi in Lingzhi, Western Bhutan

Nardostachys jatamansi, a high-altitude medicinal herb (Valerianaceae), remains ecologically understudied in Bhutan. This study assessed its phytosociology, habitat, morphometry, biomass, and threats across 3,500–5,000 m in Lingzhi, western Bhutan. Density and Importance Value Index increased significantly with altitud...