Borage

I noted from this article that borage is a herb that is now naturalized in most parts of Europe, and it has a "cucumber-like fragrance", and when steeped in water, it imparts a coolness to it and a faint cucumber flavour". As for its uses, I learnt borage can be used for fevers and pulmonary (lung) complaints, or as a gargle to relieve inflammation and ulcers in the mouth or throats".

I read in this related article on some ways the borage leaves can be used.

http://www.wikihow.com/Grow-Borage

"The leaves can also be used. Some ideas for use include:

• Adding to gin-based summer cocktails
• Placing the young leaves into salads cooked like spinach or dipped in batter asfritters
• Use the leaves uncooked in salads and soups, as they have a cucumber flavor
• Add sprigs to wine, cider, and fruit drinks
• Freeze the flowers into ice cubes
• Use the flowers as garnishes in salads
• Candy the flowers for cake decorations."

This blog below says that the Indian borage is used as a cough remedy too.

http://gardeningwithwilson.com/2007/11/08/gcs-feature-articles-for-oct-07/

"In Singapore, the Indian Borage is often mistakened as a type of mint. To make things worse, a rough search using the Internet search engine will yield has several confusing common names. Botanically, the Indian Borage is known as Plectranthus amboinicus and is a member of Lamiaceae and this herb is famed for its use as a cough remedy."