Parnayavani, also known as Coleus ambioinicus, is an aromatic herb that is common in parts of India. It resembles Khurasani Ajwain in appearance. The leaves are ovate, dentate, thick and hairy, with a pleasant aromatic odor. It contains an odorous oil with the active component carvacrol. In Ayurveda, it is described as having pungent, bitter tastes and hot potency. It is useful for treating digestive issues, respiratory conditions like cough and hiccups, and urinary disorders. The leaves are the useful part and can be taken as a juice or in special preparations. Ancient Ayurvedic texts quote its properties of stimulating digestion

1. Parnayavani- Coleus ambioinicus
Introduction:-
It was not been told in brahttrayas, it was entered in materia
medica of India in 9th AD.it was mentained by P.V.Sharma as
Yavanivishesa. Features of this plant resembles Khurasani
Ajwain. Vranda Madhava quoted its Krimigna property
But now Coleus forskolin is used instead of Coleus
ambioinicus

2. Vernacular Names:-
San:-Yavanigandha parnika, Karpuravalli
Hin:- Patta ajwain
Tam:-Karpuravalli
Tel:- Vamuaku
Kan:- Dodda patre soppu
Eng:- Country borage
Lat:-Coleus ambioinicus

3. Synonyms:-
Yavanigandha parnika,
Karpuravalli

4. Habitat:-Almost common in Malabar islands &
in most parts of India

5. Morphology:-
Herb, fleshy and highly aromatic, much branched
Shaft- fleshy
Leaves- 1-2 inch length , ovate dentate edged,
chordate, thick & hairy. The taste of this leaf is
pleasantly aromatic with agreeable and refreshing
odour.
Flowers- are on a short stem , pale purplish.

8. Chemical Composition:-
Odorous oil with active content Carvacrol

9. Properties:-
Guna- lagu, ruksha, teekshna
Rasa- Katu, tikta
Veerya- Usna
Vipaka- Katu

10. Dosha Karma:-
Kaphavatashamaka

11. Systemic Action:-
External- Vedanastapan, Vishagna
Digestive- deepana, pachana, grahi,
vatanulomana, krimigna
Circulatory:-Uttejaka
Respiratory:- swasa, kasa, hikka
Urinary:- asmari, mutrakrachha

12. Useful Part:-
leaves

13. Dosage:-
swarasa- 5-10 ml

14. Special preparations

15. Quotations:-
khyata parnayavani tu yavanigandaparnika I
jata purviyadwipeshu bharate prasrata brasham II
tekshna parnyavanusna katutikta rase laghu I
deepani pachani ruchya malasangrahini param II
agnimande yakratroge grahnyamudarakrimou I
vishuchikayamasmarya mutrakrachhe shyshyate II