Classical names describe, and a describing name can drift from one plant to another. A botanical genus is a different kind of word: it is assigned, recorded and stable.
What a genus fixes
Valeriana is a genus, and a plant is either in it or not. Tagara is Valeriana wallichii. That pairing of genus and species is what a label should carry, because it survives translation, trade and the passage of centuries in a way a vernacular name does not.
Why it matters for aromatic roots in particular
Fragrant roots have been traded a long way from where they grow, and several of them have shared names along the route. The genus is the part of the name that does not move. Where a classical term has been applied loosely, the genus is what tells you which plant you actually have.
The same problem, elsewhere
This is not unique to Tagara. Brahmi and Mandukaparni are two species that have shared one name for centuries, and Arjuna answers to seven or eight names of its own. In each case the species settles it.
On the jar
Tagara Capsules state Valeriana wallichii and the part used, which is root and rhizome.
Frequently Asked Questions
What is a genus?
The rank above species. Valeriana is the genus, wallichii the species.
Why not rely on the classical name?
Because a classical name describes a quality or appearance and can be applied to more than one plant.
What should a good label carry?
Genus, species and the part collected.
This article is for educational purposes and describes the classical Ayurvedic record. The products mentioned are food supplements, not a substitute for a varied, balanced diet, and are not intended to diagnose, treat, cure or prevent any disease. Take them under the guidance of a qualified Ayurvedic practitioner.
