Ayurvedic Properties
- Taste (Rasa)
- Astringent (Kashaya)
- Quality (Guna)
- Light (Laghu)
- Potency (Virya)
- Cold (Sheeta)
- Post-digestive (Vipaka)
- Pungent (Katu)
- Key Constituents
- Flavonoids, Phenolics
- Also Known As
- English: Tape Grass, Eel Grass
Sanskrit: शैवार, जलशुक्ती
Hindi: सेवार, पाटा
What is Tape Grass?
Not every Ayurvedic herb grows on land. Tape Grass, also called Eel Grass, is known in Sanskrit as Shaivar and in Hindi as Sevar or Pata.
Its botanical name is Vallisneria spiralis Linn. It is a submerged aquatic plant with long, ribbon-like leaves that grows in freshwater habitats. The plant is dioecious, meaning male and female flowers grow on separate plants, and the female flowers rise to the water's surface on long spiral stalks.
The Bhavaprakash Nighantu (Varga 4) mentions it among aquatic plants and records its main traditional use as an astringent.
Benefits of Tape Grass
The classical record for Tape Grass is short, so its uses are best understood through its properties: an astringent taste (Kashaya Rasa), a light quality (Laghu), a cold potency (Sheeta Virya, its cooling effect in the body) and a pungent post-digestive effect (Katu Vipaka).
An Absorbent, Binding Herb
The Bhavaprakash Nighantu lists one therapeutic action: absorbent (Grahi). In Ayurveda, a Grahi substance absorbs excess fluid and binds, which matches its astringent taste.
Traditional Astringent Use
Traditional medicine uses the plant as an astringent. Our sources do not link it to specific conditions, so we have not listed any here.
Modern analysis notes flavonoids and phenolics among its constituents.
How to Use Tape Grass
The classical sources we hold record Tape Grass's properties and its absorbent action, but they do not give a dose, a preparation method or a vehicle (Anupana, the liquid a herb is taken with). The table below reflects that honestly.
| Form | Dose | Best For | When to Take |
|---|---|---|---|
| Whole plant | Not recorded in our sources | Traditional astringent use | Only as directed by a practitioner |
If you want to use Tape Grass therapeutically, work with a qualified Ayurvedic practitioner who can identify the plant and set a dose for you.
Safety & Side Effects
Our sources do not record contraindications, drug interactions or overdose signs for Tape Grass. That is a gap in the record, not evidence of safety.
- It is drying. As an astringent, absorbent herb, it binds and dries. If you are already dehydrated or constipated, an absorbent herb is generally not the right choice without guidance.
- Source matters. It grows submerged in fresh water, so plant material collected from the wild may carry whatever is in that water.
Ask a qualified practitioner before taking Tape Grass internally, especially if you are pregnant, nursing or on medication.
Recommended: Start Here
The best first step with Tape Grass is to learn about it rather than to take it. Its classical record gives properties and one action, absorbent, but no dose, so self-dosing is guesswork.
A good Ayurvedic materia medica will show you where Shaivar sits among the other aquatic plants in the Bhavaprakash Nighantu. If you want to use it, bring that knowledge to a practitioner.
Find Ayurvedic Herb References on Amazon ↗ Bhavaprakasha Nighantu ↗
Safety note: do not take wild-collected water plants internally without a practitioner's guidance.
Tape Grass vs Other Herbs & Supplements
Tape Grass is rarely compared head to head with popular supplements. The useful comparison is with other aquatic foods and herbs Ayurveda describes.
| Comparison | Tape Grass | Alternative | Verdict |
|---|---|---|---|
| Tape Grass vs Water Chestnut | Astringent, light, cooling; an absorbent herb | An aquatic plant eaten as food | Water Chestnut is the food; Tape Grass is an astringent herb. |
| Tape Grass vs Fox Nut (Makhana) | Used for its binding, absorbent action | An aquatic plant valued as a food | Choose Fox Nut for food; Tape Grass only with practitioner guidance. |
Tape Grass for Specific Populations
Pregnancy & Nursing
No safety data is recorded in our sources. Avoid internal use unless a qualified practitioner advises it.
Children
No pediatric dose is recorded. Do not give it to children without professional guidance.
Elderly
Its light quality makes it easy to digest in Ayurvedic terms, but its drying, absorbent action may not suit someone prone to dryness or constipation. Check with a practitioner.
Athletes
Our sources record no sports or performance use for Tape Grass.
Frequently Asked Questions
What plant is Tape Grass?
The Ayurvedic Shaivar is Vallisneria spiralis, a submerged freshwater plant with ribbon-like leaves. It is also called Eel Grass in English.
What does Grahi mean?
Grahi is the Ayurvedic term for an absorbent action: a substance that soaks up excess fluid and binds. The Bhavaprakash Nighantu lists it as Tape Grass's one therapeutic action.
Is Tape Grass cooling or heating?
Cooling. Its potency is cold (Sheeta), its taste astringent and its quality light, though its post-digestive effect is pungent.
Why do the flowers grow on spiral stalks?
The plant is dioecious, with male and female flowers on separate plants. The female flowers rise to the water's surface on long spiral stalks. It is one of the more unusual plants in the classical aquatic group.
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Ayurvedic treatments should be pursued under the guidance of a qualified practitioner (BAMS/MD Ayurveda). Always consult your healthcare provider before starting any new treatment. Content is sourced from classical Ayurvedic texts and may not reflect the latest medical research.