E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Green Horse (The).
The 5th Dragoon Guards; so called because they are a horse regiment, and have green for their regimental facings. Now called The Princess Charlotte of Waless Dragoon Guards.
Tarletons green horse. That is, the horse of General Tarleton covered with green ribbons and housings, the electioneering colours of the member for Liverpool, which he represented in 1790, 1796, 1802, 1807. His Christian name was Banastre.