Plants: really too numerous to mention as we have many well cultivated parks and gardens. If this is your area of interest I'd a suggest a visit to the Royal Botanic Gardens, Kew. www.kew.org
Thank you for the info. It can be challenging if you're not a UK local, learning the names of plants around that are not common in your country of origin! I mean; what d'you do? Take a picture of the mysterious plant and google it? LOL! Methinks a visit to Kew might be useful