🌿 Botanical Name: Toxicodendron radicans.
Common Names
English: Nattukottai Poison Ivy / Oduvanthalai
Hindi: करनी (Karni) / गरारी (Garari)
Kannada: ಓಡುಗಿಡ (Odugida)
Tamil: ஒடுக்கத்தலை (Oduvanthalai)
Telugu: ఒడ్డుగంట (Odduganta)
Malayalam: ഒടിയമരം (Odiyamaram)
🌿 Herbal Uses of Nattukottai Poison Ivy
(Note: This plant is highly toxic. Traditional uses are based on localized, cautious applications. Extreme care is advised.)
1. Traditional Detoxifier (Strictly Controlled Folk Use)
Purgative: Leaves used in trace amounts as a purgative in traditional medicine to “cleanse” the body.
Fever Management: Decoction sometimes used in rural areas to induce sweating and reduce fever.
2. Respiratory & Digestive Disorders
Cough & Asthma: Crushed leaves used in very small doses in traditional practice to ease chronic cough and asthma symptoms.
Indigestion & Constipation: Decoction given in extremely diluted form to stimulate bowel movement (dangerous if misused).
3. Anti-Parasitic (Ethnoveterinary Use)
Deworming Livestock: Dried leaf powder mixed with fodder in minute quantities to expel intestinal worms in cattle and goats.
4. Anti-Microbial (Topical Use Only)
Wound Cleaning: Leaf decoction applied externally to clean minor wounds or skin infections.
Anti-Fungal: Used traditionally to relieve athlete’s foot and ringworm infections when applied topically.
5. Insecticidal & Pesticidal
Natural Pesticide: Leaf extract sprayed on crops in some rural communities to deter pests.
Insect Repellent: Crushed leaves placed near grains or stored items to repel insects.
6. Spiritual / Ritualistic Uses
Used in Protection Rituals: In some local traditions, the leaves are used to ward off evil or cleanse a home energetically.
🌿 Toxicological Warning:
Extremely Poisonous: Contains cleistanthin A & B — dangerous to kidneys, heart, and lungs.
Symptoms of Poisoning: Nausea, vomiting, electrolyte imbalance, heart failure, kidney failure, respiratory distress.
Used in Suicides: Unfortunately common in self-poisoning cases in South India.
→ Always consult an experienced herbalist or Ayurvedic doctor. Never self-administer.
🌿 Plant Classification
Kingdom: Plantae
Family: Phyllanthaceae
Genus: Cleistanthus
Species: Cleistanthus collinus
🌱 Plant Description
Type: Medium-sized deciduous shrub or small tree
Height: 10 to 20 feet (3–6 meters)
Leaves: Alternate, oblong-lanceolate, smooth margins
Bark: Gray to pale brown, smooth
Rhizome: Not applicable
Odor: Leaves have a faint but distinct odor when crushed
🌸 Flowering & Fruit
Flowers: Small, yellow-green, unisexual (male and female flowers on the same or different plants)
Inflorescence: Axillary clusters
Fruit: Capsule with lobes; each lobe contains seeds
🌿 Growth Requirements
Climate: Tropical and dry deciduous climates
Soil: Sandy to red loamy soil, well-drained
Light: Thrives in full sunlight
Watering: Drought-tolerant; needs occasional watering in dry spells
🌱 Propagation
By Seeds: Naturally propagated through mature seed pods
Germination: Takes 2–4 weeks under warm, moist conditions
🗓️ Harvest Time
Leaves: Harvested throughout the year; most potent during dry season
Fruits: Not typically used medicinally