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রোহিতা (Rohitaka)

Scientific name: Tecomella undulata

Bengali name: রোহিতা

Family: Bignoniaceae

Genus: Tecomella

Origin: Asia (India, Pakistan)

Quick Summary

✓ Rohitaka (Tecomella undulata) is a desert-adapted tree from India, valued for centuries in Ayurveda. ✓ It is a potent hepatoprotective and splenotonic, primarily used for liver and spleen disorders. ✓ Rich in bioactive compounds like flavonoids, glycosides, and quinones, contributing to its antioxidant and anti-inflammatory effects. ✓ Also traditionally employed for digestive issues, diabetes management, and various skin conditions. ✓ Requires careful dosage and professional medical consultation due to its powerful therapeutic actions.

Key Features

✓ Deciduous desert tree native to arid regions of India. ✓ Striking bell-shaped orange to bright yellow flowers. ✓ Renowned in Ayurveda for its hepatoprotective properties. ✓ Potent splenotonic (Pleehagna), addressing spleen enlargement. ✓ Demonstrated anti-hyperglycemic and antioxidant potential. ✓ Contains significant anti-inflammatory and antimicrobial compounds. ✓ Bark, leaves, and heartwood are the primary medicinal parts. ✓ Highly drought-tolerant and ecologically resilient species. ✓ Key ingredient in traditional Ayurvedic formulations. ✓ Contributes to digestive health and blood purification.

Description

Tecomella undulata, widely recognized as Rohitaka or Desert Teak, is a resilient deciduous tree native to the arid and semi-arid regions of North and Central India, extending into parts of Pakistan. Typically growing to heights of 6 to 12 meters, this species is characterized by its robust, often fissured, greyish-brown bark that can range from smooth to slightly rough. Its distinctive foliage consists of simple, lanceolate to elliptical leaves, usually 4 to 15 centimeters long, presenting a glossy green surface. Rohitaka is celebrated for its striking bell-shaped flowers, which bloom profusely between March and June. These vibrant blossoms, typically orange to bright yellow and frequently adorned with darker markings, measure approximately 3 to 5 centimeters in length and are arranged in showy racemes. Ecologically, Tecomella undulata is a vital component of dry deciduous forests and scrublands, demonstrating remarkable adaptation to harsh environmental conditions, particularly drought. Taxonomically, it belongs to the Bignoniaceae family, a group renowned for its diverse array of ornamental and medicinally significant plants, underscoring Rohitaka’s botanical importance.

Trusted Scientific References

Authoritative external sources for Tecomella undulata:

Medicinal Benefits

✓ Liver Health Support — Rohitaka is traditionally revered in Ayurveda for its potent hepatoprotective qualities, actively aiding in the management and prevention of liver disorders such as jaundice and hepatitis by supporting cellular regeneration and detoxification pathways. ✓ Spleen Disorder Treatment — Known as 'Pleehagna' in Ayurvedic texts, Tecomella undulata is specifically indicated for conditions like splenomegaly (enlarged spleen), helping to reduce its size and improve splenic function. ✓ Diabetes Management — Research suggests that extracts from Rohitaka leaves possess anti-hyperglycemic potential, contributing to the regulation of blood glucose levels and offering support in type 2 diabetes. ✓ Digestive Enhancement — The bark powder is utilized to alleviate various digestive complaints, including indigestion, lack of appetite, and the expulsion of intestinal worms (Krimi). ✓ Skin Ailment Relief — Due to its anti-inflammatory and antiseptic properties, decoctions of Rohitaka bark are traditionally applied externally to treat diverse skin diseases and reduce inflammation. ✓ Antioxidant Activity — Studies indicate that various parts of the plant, particularly the stems and leaves, exhibit significant antioxidant activity, helping to neutralize free radicals and mitigate oxidative stress. ✓ Anti-inflammatory Action — Tecomella undulata contains compounds that contribute to its anti-inflammatory effects, making it useful in managing conditions characterized by inflammation and pain (Shula, Ruja). ✓ Blood Purification — In Ayurveda, Rohitaka is considered 'Raktaghna,' beneficial in treating blood vitiation disorders and supporting overall blood health. ✓ Leucorrhea Treatment — Traditional remedies involve the internal use of a paste made from the bark and root, often combined with honey, to address leucorrhea. ✓ Constipation and Bloating Relief — The plant is known for its 'Sara' property, which promotes bowel mobility, helping to relieve constipation (Vibandha) and abdominal bloating (Anaha).

Benefits

• Supports liver health by potentially preventing liver damage and aiding in detoxification. • Enhances spleen function, making it beneficial for digestive health. • Used in traditional remedies for treating jaundice and hepatitis. • Contains anti-inflammatory properties, helpful for skin issues when applied topically. • Offers antibacterial effects that can aid in wound healing. • Contributes to the ecological balance in arid ecosystems, providing shade and habitat. • Acts as a natural source of bioactive compounds that may provide health benefits. • Its flowers attract pollinators, supporting local biodiversity. • Prized for its ornamental value, enhancing landscapes in dry regions. • The timber can be used in construction and for making furniture, being durable and resistant to decay.

Advantages of Growing

✓ Supports liver health by potentially preventing liver damage and aiding in detoxification. ✓ Enhances spleen function, making it beneficial for digestive health. ✓ Used in traditional remedies for treating jaundice and hepatitis. ✓ Contains anti-inflammatory properties, helpful for skin issues when applied topically. ✓ Offers antibacterial effects that can aid in wound healing. ✓ Contributes to the ecological balance in arid ecosystems, providing shade and habitat. ✓ Acts as a natural source of bioactive compounds that may provide health benefits. ✓ Its flowers attract pollinators, supporting local biodiversity. ✓ Prized for its ornamental value, enhancing landscapes in dry regions. ✓ The timber can be used in construction and for making furniture, being durable and resistant to decay.

Diseases & Conditions Treated

Chemical Constituents

✓ Glycosides — The bark contains prominent compounds like Tecomelloside, Undulatoside A, Undulatoside B, and Tecoside, which are believed to contribute to its hepatoprotective and other therapeutic actions. ✓ Flavonoids — Various flavonoids are present, particularly in the bark and leaves, imparting significant antioxidant and anti-inflammatory properties, vital for cellular protection. ✓ Naphthoquinones — The heartwood is a rich source of Lapachol, a potent compound recognized for its antimicrobial, anti-inflammatory, and potentially anticancer activities. ✓ Anthraquinones — Tectoquinone, another constituent found in the heartwood, exhibits antioxidant and antimicrobial effects, contributing to the plant’s protective mechanisms. ✓ Phytosterols — Beta-Sitosterol (B-Sitosterol) is identified in the bark, known for its anti-inflammatory, immune-modulating, and cholesterol-lowering properties. ✓ Alkaloids — Tecomin, an alkaloid-like compound, is present in the bark, though its specific pharmacological actions are still under investigation, it is often associated with antidiabetic effects. ✓ Long-Chain Hydrocarbons — Compounds such as C27, C29, and Octacosanol Acetyl Ferulate are found in different parts, contributing to the plant's overall chemical complexity. ✓ Phenolic Compounds — General phenolic content, particularly high in stems, contributes significantly to the plant’s broad-spectrum antioxidant capacity.

Usage Method

✓ Bark Decoction — Prepare a decoction by boiling 50-100 ml of Rohitaka bark in water; traditionally used for liver and spleen disorders, jaundice, and diabetes. ✓ Bark Powder — Consume 1-3 grams of dried bark powder, often mixed with honey or water, to aid digestion, treat intestinal worms, and manage piles. ✓ External Bath — A decoction of the bark can be added to bathwater for treating various skin ailments and promoting skin health. ✓ Root and Bark Paste — For conditions like leucorrhea, a paste made from the root and bark is taken orally, typically in doses of 3-5 grams with honey. ✓ Ayurvedic Formulations — Rohitaka is a key ingredient in numerous Ayurvedic medicines such as Rohitaka Lauha and Rohitakarishta, specifically formulated for splenic and hepatic conditions. ✓ Consultation — Always consult a qualified Ayurvedic practitioner or healthcare professional for appropriate dosage and preparation methods tailored to individual needs. ✓ Heartwood Decoction — The heartwood decoction is also specifically cited for its efficacy in controlling diabetes and jaundice in traditional practices.

Cultivation Method

✓ Climate and Soil — Thrives in arid and semi-arid climates, requiring well-drained, sandy-loam soils; tolerant of poor soil fertility and salinity. ✓ Propagation — Primarily propagated through seeds, which germinate well, or via stem cuttings, especially from semi-hardwood. ✓ Sunlight Requirements — Demands full sun exposure for optimal growth and flowering, being highly intolerant of shade. ✓ Watering — Highly drought-tolerant once established, requiring minimal irrigation; excessive watering can be detrimental. ✓ Pest and Disease Management — Generally resistant to most common pests and diseases, making it a low-maintenance species. ✓ Harvesting — Medicinal parts like bark, leaves, and heartwood are harvested sustainably to ensure regeneration and ecological balance. ✓ Growth Rate — Exhibits a moderate to slow growth rate, especially in challenging environments, but is very long-lived. ✓ Ecological Role — Valued for its role in desert afforestation and soil conservation due to its deep root system.

Environment & Growth

Tecomella undulata is ideally suited to warm, arid climates with temperatures ranging from 25°C to 45°C. It requires a minimum annual rainfall of about 400 mm, thriving in regions with well-draining, sandy or loamy soil. The tree prefers full sun, needing at least 6 hours of direct sunlight daily, which aids in flower production and growth. Although it is drought-tolerant, it benefits from good moisture during its budding and flowering phase. The ideal pH for soil is between 6 and 8. Additionally, it can tolerate a wide range of soil textures, making it adaptable to various environmental conditions as long as proper drainage is maintained.

Soil & Pot Requirements

Karma (Actions) – Kaphavpitta shamaka (reduces vitiated kapha and pitta dosha). ****Morphology***. Veerya (Potency) – Sheeta (Cold).

Care Tips

Tecomella undulata thrives in well-draining sandy or loamy soils and prefers full sun exposure for optimal growth. Regular watering is crucial during the establishment period, but once established, the tree is drought-resistant and requires minimal watering. Pruning should be done in the late winter to encourage a strong branch structure and to remove any dead or diseased wood. Fertilization practices should include organic compost during the growing season to support healthy growth. Be vigilant against pests such as scale insects or aphids, which may occur in garden settings; using insecticidal soap can safely manage these pests without harming the plant. Mulching around the base can help retain soil moisture and regulate temperature.

Propagation Methods

Propagation of Tecomella undulata can be achieved through seeds or cuttings. For seed propagation, collect mature seeds during the dry season, soak them in water for 24 hours to soften the seed coat, and sow them in seed trays filled with a light potting mix. Maintain a moist environment until germination, which typically occurs within 2-4 weeks. For cuttings, select semi-hardwood stems during the spring; cut about 15-20 cm long sections and remove the lower leaves. Dip the cut end in rooting hormone and plant in a well-draining medium, maintaining humidity with a plastic cover for about 2 weeks until roots develop. The success rate for seed propagation is about 70%, while cuttings have an approximate success rate of 50-60% if proper care is taken.

Toxicity & Safety

**Adverse effects of desert teak:*. No adverse effect is known or reported after the normal use of Rohitka. Satmikarana –Ant poisonous, indicated in obesity. # Rohitaka Tecoma undulata: Uses, Remedies, Side Effects, Research.

Safety Profile

✓ Professional Consultation — Always seek advice from a qualified healthcare practitioner or medical herbalist before initiating Rohitaka supplementation, especially for chronic conditions. ✓ Pregnancy and Breastfeeding — Contraindicated during pregnancy and lactation due to insufficient safety data and potential effects on hormonal balance. ✓ Pediatric Use — Avoid use in children unless under strict medical supervision and guidance from a pediatric herbalist. ✓ Pre-existing Conditions — Individuals with severe liver disease, diabetes, bleeding disorders, or other chronic health issues should exercise extreme caution and consult their doctor. ✓ Drug Interactions — Monitor for potential interactions with allopathic medications, particularly antidiabetic drugs, anticoagulants, and hepatotoxic medications. ✓ Dosage Adherence — Strictly adhere to recommended dosages and duration of use to minimize the risk of adverse effects. ✓ Quality Sourcing — Ensure the use of high-quality, unadulterated plant material from reputable suppliers to guarantee efficacy and safety.

Side Effects

✓ Overuse Concerns — While generally safe at recommended doses, excessive intake of Rohitaka can potentially lead to adverse effects, though specific symptoms are not widely documented. ✓ Digestive Upset — In some sensitive individuals, high doses might cause mild gastrointestinal discomfort, such as nausea or stomach upset. ✓ Allergic Reactions — As with any botanical, there is a minor risk of allergic reactions, manifesting as skin rashes or itching, particularly in susceptible individuals. ✓ Drug Interactions — Potential interactions with conventional medications, especially those for diabetes, liver conditions, or blood-thinning agents, due to its potent actions. ✓ Pregnancy and Lactation — Should be avoided by pregnant and breastfeeding women unless specifically advised and monitored by a healthcare professional. ✓ Children — Not recommended for use in infants and young children without expert medical consultation.

Cultural Significance

Rohitaka (Tecomella undulata) holds cultural significance that goes beyond identification in a plant list. Its connection with Asia (India, Pakistan) helps explain where people first learned to recognize, exchange, cultivate, and value the species. As part of the Bignoniaceae family, it also sits within a broader botanical tradition that people have long associated with useful, decorative, culinary, or medicinal plants. Typically growing to heights of 6 to 12 meters, this species is characterized by its robust, often fissured, greyish-brown bark that can range from smooth to slightly rough. Its distinctive foliage consists of simple, lanceolate to elliptical leaves, usually 4 to 15 centimeters long, presenting a glossy green surface. Today, Rohitaka remains culturally relevant because people encounter it at the meeting point of traditional medicine, scientific interpretation, conservation, and herbal commerce. Careful naming, responsible cultivation, and respect for origin help preserve the story around Rohitaka without reducing it to myth, trend, or marketing language. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Cultural significance becomes stronger when a plant is taught from one generation to the next through naming, cultivation practice, household use, public planting, or community memory. That is why even a modest species can hold lasting value in a botanical encyclopedia when its human context is preserved alongside its morphology and habitat.

Quick Facts

Categorymedicinal
FamilyBignoniaceae
GenusTecomella
Species epithetundulata
Life cyclePerennial
Growth habitTree
Sun requirementFull Sun
Water needLow
EdibilityEdible
Conservation statusEN