Which plant that is used in ayurveda's for improving memory?

Many plants are used for improving memory. Some of the renowned ones are 1. Bramhi (Bacopa monnieri)

2. Sankhapuspi(Convolvulus pluricaulis)

3. Kusmanda (Benincasa hispida)

4. Mandukaparni (Centella asiatica)

5.Jyotismati (Celastrus panniculatus)

6. Ushtukhudus (Lavendula stoechas)

These plants should only be used under supervision of Ayurveda practitioner as the plant soothing you might differ than the one you are using.