Ethnobotany and Nutritive Value of Key Flora in Northeast India

 

Ethnobotany and Nutritive Value of Key Flora in Northeast India

Northeast India is recognised as a global biodiversity hotspot where indigenous flora serves as both dietary staples and medicinal supplements. This region’s topography fosters the growth of specific plant species like Bora rice, Bamboo shoots, and Houttuynia cordata, which are essential to the socio-cultural fabric and provide vital macro and micronutrients.

1. Bora Rice (Oryza sativa L. var. glutinosa)

Bora rice is a glutinous variety indigenous to Assam, primarily characterised by its high amylopectin content, which provides its sticky texture.

Distribution

●       Primary Region: Extensively cultivated across the Brahmaputra valley of Assam (Panda et al., 2026).

●       Environment: It thrives in humid, subtropical climates and is a staple in Assamese ethnic food preparations.

Parts Used and Method of Use

●       Parts Used: The whole grain (endosperm).

●       Method of Use:

○       Jolpan: Traditionally consumed as a "ready-to-eat" product after soaking or light cooking.

○       Traditional Items: Used in making Pitha (rice cakes) and Chunga saul (rice cooked in bamboo tubes).

○       Cooking Dynamics: Characterised by low gelatinisation temperatures and shorter cooking times (Panda et al., 2026).

Nutritive Value & Food Supplementation

●       Starch Profile: Contains 80% to 90% starch, predominantly amylopectin, with a relatively low proportion of resistant starch (Panda et al., 2026).

●       Glycemic Index: Due to low resistant starch levels, it typically has a high glycemic index, though genetic breeding is exploring low-GI variants.

●       Energy Source: Valued for high caloric density and easy digestibility, often used in traditional recovery diets.

2. Bamboo Shoot (Bambusa spp. / Dendrocalamus spp.)

Bamboo shoots are the young, edible sprouts of bamboo and are a cornerstone of Northeastern Indian cuisine.

Distribution

●       Primary Region: Northeast India accounts for approximately 66% of the national bamboo growing stock (Singh et al., 2025).

●       Key Species: Common edible species include Bambusa tulda, Dendrocalamus hamiltonii, and Dendrocalamus asper.

Parts Used and Method of Use

●       Parts Used: Young, tender juvenile shoots (Singh et al., 2021).

●       Method of Use:

○       Fresh/Boiled: Consumed in soups or stir-fries.

○       Fermented: Known by various names like Khorisa (Assam), Soibum (Manipur), and Mesu (Sikkim) (Nongdam, 2014).

○       Preservation: Can be canned or sun-dried for off-season use.

Nutritive Value & Food Supplementation

●       Macronutrients: Fresh shoots are rich in protein (up to 25.84% on a dry basis) and contain 17 amino acids, 8 of which are essential for humans (Nongdam, 2014; Singh et al., 2025).

●       Micronutrients: High in minerals like Iron (comparatively higher than many common vegetables), Potassium, and Vitamins A, B6, and E (Singh et al., 2021).

●       Bioactive Compounds: Abundant in phytosterols and phenols, which offer cholesterol-lowering and antioxidant properties.

3. Masundari (Houttuynia cordata Thunb.)

Known as "Fish Mint" or "Chameleon Plant," this herb is prized for its pungent aroma and medicinal versatility.

Distribution

●       Primary Region: Native to the Brahmaputra Valley of Assam, Meghalaya, and Manipur (Sharma et al., 2026).

●       Habitat: Grows in moist, shady locations or submerged in shallow water. It is now considered endangered in some natural habitats of Northeast India.

Parts Used and Method of Use

●       Parts Used: Entire plant, including leaves, stems, and rhizomes.

●       Method of Use:

○       Culinary: Used raw in salads (Singju), chutneys, or cooked with fish to neutralise odours.

○       Traditional Medicine: Ingested as juice or decoctions for detoxifying properties (Sharma et al., 2026).

Nutritive Value & Food Supplementation

●       Minerals: Exceptionally high in Potassium (up to 4965 mg/100g) and Iron (9.8–12.6 mg/100g) (Sharma et al., 2026).

●       Bioactive Content: Contains high levels of flavonoids (64.20 mg QE/g), phenols, and alkaloids.

●       Therapeutic Potential: Demonstrated anti-inflammatory, antibacterial, and antiviral activities, traditionally used to treat gastrointestinal issues and respiratory infections (Sharma et al., 2026).

References

Nongdam, P. (2014). The nutritional facts of bamboo shoots and their usage as important traditional foods of Northeast India. ISRN Pharmacy, 2014, 679073. https://doi.org/10.1155/2014/679073

Panda, D. K., Jyotirmayee, B., & Mahalik, G. (2026). Cooking and eating quality of ethnic Bora rice (Oryza sativa L.): machine learning-based prediction of resistant starch content in ready-to-eat products. Journal of the Science of Food and Agriculture, 106(3). https://doi.org/10.1002/jsfa.70457

Sharma, D., Porasar, P., Bharadwaj, A., Bora, N. S., Gam, S., Dua, T. K., Sahariah, B. J., & Dutta, K. N. (2026). Houttuynia cordata—A review on exploring its diverse phytochemical and therapeutic potential and unveiling ethnobotanical insights into its traditional and nutritional uses. Current Traditional Medicine, 4(e2210299X406292). https://doi.org/10.2174/012210299X406292260121115400

Singh, P., Rathore, M., & Prakash, H. G. (2021). The nutritional facts of bamboo shoots have potential and prospects for utilization as a health food: A review. Asian Journal of Dairy and Food Research, 40(4), 388-397. https://doi.org/10.18805/ajdfr.DR-1586

Singh, R., et al. (2025). Edible bamboo shoots: A sustainable nexus of nutrition, livelihood, and food security for rural communities in India. Frontiers in Nutrition, 12, 1654510. https://doi.org/10.3389/fnut.2025.1654510