1. Introduction
Poduthalai Keerai (Oldenlandia corymbosa) is a rare leafy green that holds an important place in traditional Siddha medicine and Tamil heritage cuisine. Though it is considered a wild green, its rich medicinal properties have made it a common choice as both food and medicine among rural communities. The name “Poduthalai” comes from its small leaves that appear compact and clustered.
In the villages of Tamil Nadu, it grows naturally along field edges, forest borders, and fertile lands. In Siddha medicine, it is widely used to treat nerve pain, headaches, joint pain, and stomach ailments.
2. Botanical Description
- Botanical name: Oldenlandia corymbosa
- Family: Rubiaceae
- Leaves: Small, elongated, pointed at the tip, and bright green in color.
- Flowers: Small clusters of white or pale pink blooms.
- Stem: Soft, slender, green stems.
- Roots: Fine but strong, spreading well underground.
3. Soil and Climate
- Soil type: Well-drained sandy loam or organic-rich red soil is ideal.
- pH range: 6.0 – 7.5
- Climate: Thrives in sunny conditions with moderate rainfall.
- Water requirements: Moderate watering; excess water can cause root rot.
4. Cultivation Methods
- Seeds: Fresh seeds can be sown directly in the soil.
- Stem cuttings: Can also be propagated by planting stem cuttings.
- Maintenance: Regular weeding and adequate watering are important.
- Fertilization: Organic manures like compost and farmyard manure are recommended.
- Harvest period: Ready for harvest in 45–60 days.
5. Nutritional Information
| Nutrient | Amount per 100g | Benefits |
| Protein | 4.2 g | Helps muscle growth and repair |
| Fiber | 3.8 g | Improves digestion |
| Calcium | 250 mg | Strengthens bones and teeth |
| Iron | 6.5 mg | Prevents anemia |
| Vitamin C | 32 mg | Boosts immunity |
| Antioxidants | High | Prevents cell damage |
6. Medicinal Properties
Traditional medicine (Siddha/Ayurveda)
- Used for treating fever, headaches, and colds.
- Reduces joint pain and nerve pain.
- Treats intestinal worms and improves digestion.
Modern medicinal view
- Anti-inflammatory
- Antimicrobial
- Antioxidant
7. Culinary Uses
- Poduthalai Keerai Kootu – Cooked with coconut and green chilies for a flavorful dish.
- Poduthalai Rasam – Consumed during cold or fever for relief.
- Poduthalai Thuvaiyal (Chutney) – A medicinal side dish.
- Herbal decoction – Prepared in Siddha medicine to boost immunity.
8. Benefits by Age Group
- Children – Boosts immunity and improves appetite.
- Pregnant women – Rich in iron, prevents anemia.
- Elderly – Relieves joint and nerve pain.
9. Economic Importance
- Market price: ₹20–₹30 per bunch in local markets.
- Commercial value: High demand in Siddha medicine preparation.
- Export: Dried leaves and powder are exported to other countries.
10. Environmental Role
- Improves soil fertility.
- Acts as an eco-friendly natural herb.
- Serves as food for certain birds and insects.
11. Conclusion
Poduthalai Keerai may seem like an ordinary wild green, but due to its medicinal and nutritional value, it holds an important place in Tamil traditional diets. It is still a key ingredient in both Siddha medicine and modern health food. Including this naturally growing green in our diet not only improves health but also helps maintain ecological balance.