Tecomella undulata is tree species, locally known as Rohida, found in Thar Desert regions of northwest and western India & Pakistan. It is a medium sized tree that produces quality timber and is the main source of timber amongst the indigenous tree species of desert regions of Shekhawati and Marwar in Rajasthan. The trade name of the tree species is Desert teak' or Marwar teak.
Tecomella undulata is a deciduous or nearly evergreen tree of arid and semi arid regions. It occurs on flat and undulating areas including gentle hill slopes and sometimes also in ravines. It is well adapted to drained loamy to sandy loam soil having pH 6.5-8.0. The species thrives very well on stabilized sand dunes, which experience extreme low and high temperatures. It grows in areas of scanty rainfall and high temperature. It can withstand extreme low temperature during winter and high temperature in summers. The tree is a strong light demander. It is drought, frost, fire and wind hardy. At the time of flowering (December-February) it produces beautiful showy flowers in yellow, orange and red colours. Three types of flower bearing trees can be observed near to each other in the same vicinity.
Distribution of Tecomella undulata is restricted to the drier parts of the Arabia, southern Pakistan and northwest India up to an elevation of 1200 metres. In Pakistan in Attock kala chita mountain it is found in Baluchistan and Sindh. In India, it occurs naturally in Maharashtra, Gujarat, Rajasthan, Punjab and Haryana.
The species is mainly found to occur in western parts of Rajasthan. In other states its population is scanty and very rare. In Rajasthan, Tecomella undulata is found in Barmer, Jaisalmer, Jodhpur, Pali, Ajmer, Nagaur, Bikaner, Churu and Sikar districts.
Tecomella undulata is an accepted tree species in agro forestry and large population is found in agricultural lands. It can be observed growing in community land, forestland and orans in association with Prosopis cineraria, Capparis decidua, Maytenus emarginata, Zizyphus spp. And Salvadora spp. In agriculture land it generally grows in association with Prosopis cineraria.