Kanchanara

What is Kanchanara?

Kanchanara is the bark of a flowering tree, Bauhinia variegata, that grows across India. In spring the tree is covered in large pink and white blooms, which is where its Sanskrit name comes from: kanchana means gold, and the name carries the sense of a tree bright with flower. In Hindi it is often called Kachnar, a name many people know from the kitchen, since the buds are eaten as a vegetable.

For Ayurveda, though, it is the twak, the stem bark, that matters. The bark is stripped, dried and used as a powder or a decoction. The flowers are also used in some classical preparations, but when the texts speak of Kanchanara as a medicine, they usually mean the bark. It is the bark, not the flower, that goes into the well known formulation Kanchanara Guggulu.

What Ayurveda uses it for

Every classical herb has a prabhava, a special action that the tradition singles it out for, and Kanchanara’s is unusually specific. It is described as gandamala nashana, which points to a traditional affinity for the glandular and lymphatic tissue of the neck region. That is the reputation the bark has carried through the classical texts, and it is the reason it sits at the centre of the formulation named after it.

The older texts place it in good company. The Charaka Samhita lists it among the Vamanopaga dravyas, the herbs that support emesis therapy, one of the classical cleansing methods. The Sushruta Samhita groups it under the astringent substances and among those that carry their action upward. Later, the Bhavaprakasha Nighantu describes it under the name Gandari in its Guduchyadi Varga. Across these sources the picture is consistent: a bark understood to bind, to absorb and to reduce excess.

Its qualities, in plain words

Ayurveda describes each herb by a short list of qualities, and Kanchanara’s list explains how the tradition understands it. Its taste is astringent, the dry, slightly puckering quality of strong tea or unripe fruit. In Ayurvedic thinking astringent things tighten and draw together rather than loosen, and this is the taste the texts return to again and again for Kanchanara.

Its nature is light and dry, so it does not sit heavily or add moisture; if anything it does the opposite. Its potency is cooling, which is why the tradition sees it as settling heat. And after digestion its effect turns pungent. Put together, this is a herb that the classical writers call grahi, binding and absorbent, and one they describe as reducing both Kapha and Pitta, the heavy and the hot qualities in the body.

How it is taken

The simplest classical forms are the oldest. Kanchanara is used as a churna, a plain bark powder, and as a kwatha, a decoction made by simmering the bark in water. Both were the everyday ways of taking it long before compound medicines became common.

Its best known home, though, is the compound formulation Kanchanara Guggulu, given in the Sharangadhara Samhita and also in the Bhaishajya Ratnavali. There the bark is the lead ingredient, combined with supporting dravyas such as Triphala and Trikatu and bound together with guggulu resin. It also appears in the decoction known as Kanchanara Varuna Kwatha. In these preparations the bark is never taken alone but is balanced by the other herbs around it.

Good to know

Kanchanara is a classical Ayurvedic dravya, and in the tradition it is almost always taken as part of a compounded formulation rather than on its own, and under the guidance of someone trained to prescribe it. This entry does not give doses, because dosing is prescriptive and belongs with a practitioner who can judge the person in front of them.

This entry describes the classical Ayurvedic understanding of the herb. It is not medical advice, and anyone with a health condition should speak to a qualified practitioner.

Frequently asked

What does the name Kanchanara mean? It comes from kanchana, meaning gold, and reflects the tree’s bright spring flowering. In Hindi the same tree is widely called Kachnar.

Which part is used in medicine? The stem bark, called twak in Sanskrit. The flowers are used in some classical preparations too, but the bark is the part that goes into Kanchanara Guggulu.

Is Kanchanara the same as Kanchanara Guggulu? Not quite. Kanchanara is the single herb, the bark of the tree. Kanchanara Guggulu is a classical compound formulation in which that bark is the lead ingredient, combined with herbs such as Triphala and Trikatu and guggulu resin.