Invasive alien species are non-native exotic organisms which can disperse and destroy the biodiversity and change the ecosystem. The present study deals with the comprehensive list of invasive alien plants (IAPs) of Rourkela Steel City, Sundargarh, Odisha, with background information on family, habit, and nativity. A total of 165 invasive alien species under 132 genera and 59 families have been recorded. From the nativity study, among 25 geographic regions, the majority of invasive plants reported from American continent (62%) with 103 species. While in life form analysis, the herbs (114 species) are dominant, followed by trees (23 species), shrubs (22 species), climber (5 species), and undershrub (1 species). Ageratum conyzoides, Blumea lacera, Cassia alata, Lantana camara, Cassia tora, Parthenium hysterophorus, Xanthium sp., Datura sp., Cardamine scutata, Argemone mexicana, Grangea maderaspatana, Hyptis suaveolens, and Gnaphalium polycaulon are some noxious species found during the study. Parthenium hysterophorus is the highly noxious plant which is grown everywhere after Ageratum conyzoides and Lantana camara. Most of the invasive species are locally used for medicinal purposes as well as for food, fuel, and fodder purposes. A better planning and reporting of the spread of new plants in the area are needed for early identification and control of the invasive alien plant species in different seasons. Since the flora of Sundargarh districts has not been beneficially explored, this study will help in the compilation of flora of Sundargarh district and Rourkela in particular. Further studies will reveal the allelopathic effects on different agricultural crops as well as the different ethnobotanical values.

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Diabetes mellitus is the most common disease which has conveyed significant well-being intimidation around the world. The accessible synthetic drugs for the fix of Diabetes mellitus are related to significant expense, different incidental effects and a few constraints. Medicinal plants are the storehouse of the phytochemicals which can be helpful for the therapy of various ailments. Medicinal and aromatic plants are the better option in contrast to compound medications with little or no side effects. Ethnomedicinal studies carried out among the Bhuyan tribal groups in the Sundargarh region, Odisha for the investigation of antidiabetic treatments. The Bhuyan tribal group has a rich knowledge of plants which are used in the treatment of different disease causes. The ethnomedicinal data was gathered from interviews and field studies with nearby healers and townspeople. Restorative plants were gathered and related to help from native healers. These kind medicines have been displayed to have huge mending power, either in their normal state or as the wellspring of new items handled by them. Our study is mainly concentrated on plants used by Bhuyan tribal groups in relation to the cure of diabetes. An extensive field survey of different parts of the district was made with the local tribal villagers and ethnomedicinal or ayurvedic drug practitioner’s perusal of published literature and herbarium specimen of different herbaria of the district was done. A sum of 25 plants having a place with 18 unique families used to treat diabetes utilized by Bhuyans of Sundargarh district has been reported. In this report we have prepared detailed notes on the method of preparation of precise doses, the part/parts of plants used and the method of application of doses with scientific names, vernacular names and family names of collected plants are also given. Further, it emphasizes strongly in this regard the optional and rational uses of traditional and natural indigenous medicine. The results of this study showed that these tribal people still depend on medicinal plants in Sundargarh district forest areas. The study thus underlines the potential of ethnobotanical research and the need for the documentation of traditional ecological knowledge pertaining to medicinal plant utilization for the greater benefit of mankind.

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Due to human activities in urban areas, they are in a state of rapid change for ecological alteration, which has resulted in a threat to the local plant diversity. Floristic study of a particular region helps everyone to get knowledge about forest management and the ecosystem associated with the existing plant resources of that particular region. Survey and documentation of the floristic wealth of a region are prerequisites for planning and proper utilization of its potential plant resources on the one hand and the depleting genetic resources on the other. The present paper provides the first and most comprehensive account of the monocotyledon flora of Rourkela Steel City in Sundargarh, Odisha. The floristic study of this region demonstrates a wide range of species diversity and growth. From the present investigation of the study area, the floristic exploration of monocotyledons of the Rourkela Steel City revealed the presence of 146 species in 96 genera under 28 families. Poaceae is the most dominant family with 40 species, followed by Cyperaceae (20 spp.).The dominant genus is Cyperus, with 12 species, followed by Dioscorea and Fimbristylis with four species each. The resulted plants had high utility values for food, fodder, ethnomedicine, fiber, etc. Since Rourkela is one of the units for the development of area and programs, the present inventory work will be helpful for the completion of the Rourkela flora as well as the Flora of Sundargarh district and will provide necessary information for an up-to-date compilation of the "Flora of Odisha". HIGHLIGHTS• The diversity of monocot flora present in Rourkela are studied..• Higher number of monocot plants present in Poaceae family.• The economic importances of moocot plants in Rourkela are studied.