Of the estimated 3000 species RPRCof higher plants occurring wild in 0rissa, the herbarium of Regional Plant Resource Centre has presently a collection of about 8,000 plant specimens comprising of 1,410 species of angiosperms, 65 species of ferns and fern allies and 3 species of gymnosperms. The specimens have been correctly identified, named poisoned, mounted and arranged according to Bentham and Hooker' s system of classification. Besides, herbarium specimens of important tree speciesRPRC collected under the project "Study of biological diversity of trees of tropical and sub-tropical parts of India" from different states of India has also been housed here.

Now attempts are being made to develop a state-level Herbarium of Medicinal Plants of Orissa and to digitize the herbarium so that the information is made available to a wider section of the scientific society through internet. The digital herbarium can be accessed through www.rprcbbsr.in