Abstract :
Complete enumeration of floristic composition revealed the presence of 208 plant species belonging to 121 genera and 49
families which have been classified into various life forms classes after Raunkiaer (1934) to prepare a biological spectrum
to represent climatic condition of the area. Hemicryptophytes (45.19%) and Therophytes (23.07%) dominated the
landscape of this area followed by Chamaephyte (14.90%), Phanerophytes (8.17%) and Geophytes (8.17%). Higher
percentage of Hemicryptophytes and Therophytes indicate the arid nature of the region with scanty precipitation and
sparse vegetation. Compared to the normal biological spectrum of Raunkiaer, Phanerophytes showed maximum
deviation (-37.83) followed by Hemicryptophytes (+19.19) and Therophyte (+10.07)
Keyword :
biological spectrum, Indus valley, Ladakh region, life forms