United Kingdom

1. Plants from the Woods and Forests of Chile
2. Natural History of Iceland
3. UNIVERSITY BOTANIC GARDENS LJUBLJANA
4. Plantae
5. Global Biodiversity Information Facility (GBIF)
6. Monumental Trees
7. Oaks of the world
8. Flowers of India
9. Genus Daphne
10. Encyclopaedia of Alpines and other Hardy Plants - The Alpine Garden Society
11. European Wild Flowers
12. Welcome to my hoyas
13. Bhutan Biodiversity Portal
14. India Biodiversity Portal
15. Chilebosque
16. Chilean flora
17. New Zealand Plant Conservation Network
18. Cross Hills Gardens
19. NZ native plants online
20. Enciclopedia de la Flora Chilena

Tour

• Scotland’s historic gardens
• Greer Gardens
• The Royal Parks
• Online Atlas of the British and Irish flora
• Wales

1. National Botanic Garden of Wales

Flora

• Plantlife Scotland
• Royal Horticultural Society
• UK Plant Database
• Flora of Scotland
• Trees Native to Scotland
• Plantlife Scotland
• Derby City Council - Flora of Derbyshire database
• Tropical Biodiversity

United Kingdom Tour

• City of Edinburgh Council
• Dene Guest House
• Craigieburn Guest House
• East Muntloch Croft Bed & Breakfast
• Barony House
• Sheffield Botanical Gardens
• The Garden Landscape Guide
• Summerfield Books
• Caerhays Castle and Gardens
• Glendoick Gardens
• Scotland’s historic gardens
• Greer Gardens

United Kingdom Plant

• Royal Horticultural Society
• Royal Botanic Garden Edinburgh Databases
• Royal Botanic Garden Edinburgh
• Edinburgh Rhododendron Monographs
• Kew Gardens
• Go Botany: New England Wild Flower Society
• Plants For A Future
• Nature Gate
• Online Atlas of the British and Irish flora
• Natural History Museum
• WILD FLOWER IDENTIFICATION GUIDE U.K.
• Nature In London
• Hypericum online
• The Plant Encyclopedia
• UK Plant Database
• Botanical.com
• BlueBell Arboretum & Nursery
• Rhododendron CLASSIFICATION
• Vireya Rhododendrons
• Hirsutum.info: About Rhododendrons, Azaleas and Vireyas; a virtual arboretum
• Rhododendronforeningen
• Plantlife Scotland
• UK Plant Database
• Flora of Scotland
• Trees Native to Scotland
• Plantlife Scotland
• Online Atlas of the British and Irish flora
• Derby City Council - Flora of Derbyshire database
• A Checklist of the Vascular Plants of Lao PDR Royal Botanic Garden Edinburgh 2007

Book

1. Aas, G. and A. Riedmiller 1994 Trees of Britain and Europe HarperCollins Publisher UK ISBN: 0002199939
2. Davison, Michael W. 2001 The Readers’ Digest Nature lover's Library－Field Guide to the Trees and Shrubs of Britain ISBN-10 0-276-42507-3
3. Lee, Allen Peterson 1978 A Field Guide to Edible Wild Plants of Eastern and Central North America Houghton Mifflin Cpmpany ISBN: 039531870X
4. Lippert, W. and D. Podlech 1994 Wild Flowers of Britain and Europe HarperCollins Publisher UK ISBN: 0002199963
5. Spohn, Margot , Marianne Golte-Bechtle, Roland Spohn, Roland. Spohn, Marianne, Spohn Golte-Bechtle 2015 Was blüht denn da? ISBN-13: 978-3-440-13965-3