Rasa (Taste)
Tikta , Katu
The primary taste perceived on the tongue.

Perennial terrestrial herb of marshy places.
Acorus calamus · Araceae
Perennial terrestrial herb of marshy places.
Scientific Name
Acorus calamus
Family
Araceae
Hindi Name
Bach, Ghorbach, Safed bach
Used Part
Rhizome


Morphology and field-identification notes as documented in our Dravyaguna library.
Perennial terrestrial herb of marshy places. Stem - Stout, creeping. Rhizome - aromatic Leaves - Sword shaped, erect, shar pointed, sheathing each other, midrib is stout parallel venation Inflorescence - Spadix. Flower - Densely cover the entire spadix, greenish yellow, Fruit - Turbinate, prismatic, pyramidal. Perennial terrestrial herb of marshy place. Stem - Stout, creeping Rhizome - aromatic Leaves - Sword shaped, erect, shar pointed, sheathing each other, midrib is stout parallel venation. Inflorescence - Spadix Flower - Densely cover the entire spadix.
The five-fold framework Ayurveda uses to describe a drug — Rasa, Guna, Vipaka, Veerya and its effect on the doshas.
Tikta , Katu
The primary taste perceived on the tongue.
Laghu, Tikshna
Physical and energetic attributes of the dravya.
Katu
Taste that emerges after complete digestion.
Kapha Vatahara
Effect on Vata, Pitta and Kapha doshas.
Ushna
Heating (ushna) or cooling (sheeta) energy.
Lekhaniya, Medhya , Unmadahara, Apasmarahara, Jwarahara
How modern science maps onto the classical understanding of this dravya.
Pharmacological Action
Vermifuge, Carminative, Sedative, Tranquilizer
Phytoconstituents
Alpha-asarone, Calamol, Camphone, Isoshyobunone, Acoramone.
Classical Ayurvedic indications drawn directly from the Dravyaguna tradition — paired with the preparations recommended in shastra.
01
Vishama jwara - Vacha, pippali powder with rock sugar and honey is beneficial in intermittent fever.
02
Arsha - Roasted vacha, bhanga and ajwain seeds emission are beneficial in hemorrhoids.
03
Vamaka - For bio-purification powder of Vacha is beneficial as vomiting inducer.
Always consult a qualified Ayurvedic physician before using any herb therapeutically. Dose, anupana and Prakriti-specific suitability matter.
Yoga / Kalpana
Common Ayurvedic preparations where Vacha is a key ingredient.
Shastra Pramana
वचाग्रन्थ्या कटुका तिकोष्णा वाग्मितावहिता । विबन्धामानशूलघ्नी शुक्रमूत्रविशोधिनी । अपस्मारकफोन्मादभूतग्रहोद्वेगनाशिनी ॥