These are common ornamental Acalyphas:
1. The first and the last photographs are Acalypha wilkesiana (many varieties in this species). These are generally planted as hedge / border plants. The hedge with Acalayphas and Pisonia (alternate planting) are beautiful to look at. Those who are in Chennai can see such beautiful hedges in many gardens.
2. The middle one is Acalypha hispida (cat tail).
Dr. Mahadeswara swamy.
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