London

London paste — a paste made of caustic soda and unslacked lime; -- used as a caustic to destroy tumors and other morbid enlargements.

London pride — A garden name for Saxifraga umbrosa, a hardy perennial herbaceous plant, a native of high lands in Great Britain.

London rocket — a cruciferous plant (Sisymbrium Irio) which sprung up in London abundantly on the ruins of the great fire of 1667.