My self is …, a Research Scholar from Kerala University doing PhD in Department of Computational Biology and Bioinformatics. My topic is to analyse ayurvedic formulations to find out a better solution for Alzheimer’s disease.But one of the plant which i selected  is little bit confusing.So I requested help from … (TBGRI). He gave me your mail ID. Sir, my plant is known as “Shanghupushpi” as common name, but based on the literature survey it was understood that there are 4 varieties for the same plant.
1)Evolvulus alsinoides
2)Clitorea ternatea
3)Convolvulus pluricaulis
4)Canscora decussata

Thanks, …
I am not aware about the availability of these plants.

You may check observations and details at Convolvulus prostratus (syn. Convolvulus pluricaulis) and Canscora alata (syn. Canscora decussata), if it is of any help to you.

Please check online ayurvedic shops.The first two are used in South India and other two are mostly from North India. In Clitorea ternatea there are many varieties.  In Kerala the ayurvedic preparations  white variety is used.  But need to check further for confirmation. I have written an article on Aparajita (Clitorea ternatea) published in an English Daily. If you want to read I can send it.. 

Thank you so much sir.. this is the exact problem.. here in South India we don’t get this 2nd and 3rd plant. I need the exact species since I am doing DNA barcoding also. Thank you so much for the valuable suggestions and help sir.

The 2nd: Clitorea ternatea is available in plenty in Mysore Region.

On searching efloraofindia site for shankhpushpi leads me to Convolvulus prostratus and Evolvulus alsinoides

All the four species mentioned by … in the first posting are shankupushpis FOUND in different regions. For persons in South India Clitorea ternatea/ Evolvulus alsenoides are Shankupushpi while it is not for North India. 

Exactly.. that is true sir… both of the first and second are abundant here. But 3rd and fourth are not found here. Enough literature is also not getting for the location of availability of the last two varieties… 

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