Umbrella thorn  (Acacia tortilis)

Umbrella thorn, heteracantha variety

© Chris Mattison / www.flpa-images.co.uk

Umbrella thorn in savanna habitat

© Winfried Wisniewski / www.flpa-images.co.uk

Mature umbrella thorn

© Nigel J. Dennis / www.nhpa.co.uk

Mature umbrella thorn

© Dani / Jeske / Animals Animals

Mature umbrella thorn

© Peter Steyn / www.ardea.com

Umbrella thorn leaves

© Hanne & Jens Eriksen / naturepl.com

Umbrella thorn leaves showing paired thorns

© www.botanypictures.com / Antonie van den Bos

Umbrella thorn leaves and thorns

© www.botanypictures.com / Antonie van den Bos

Umbrella thorn leaves and thorns

© www.botanypictures.com / Antonie van den Bos

Umbrella thorn in flower

© Heather Angel / naturalvisions.co.uk

Umbrella thorn flowers

© Heather Angel / naturalvisions.co.uk

Umbrella thorn flowers close up

© Willem Frost / www.wildlifepixels.net

Umbrella thorn flowers and thorns close up

© Willem Frost / www.wildlifepixels.net

Umbrella thorn seed pods

© Kim Wolhuter / wildhoot@mweb.co.za

Umbrella thorn trunk showing paired thorns

© www.botanypictures.com / Antonie van den Bos

Umbrella thorn, view from below

© Winfried Wisniewski / www.flpa-images.co.uk

Umbrella thorn forest with buffallo

© Kim Wolhuter / wildhoot@mweb.co.za

Giraffe and zebra under umbrella thorn

© J.-L. Klein & M.-L. Hubert / Biosphoto

Umbrella thorn forest, view from above

© Kim Wolhuter / wildhoot@mweb.co.za

Umbrella thorn in savanna habitat

© John Shaw / www.nhpa.co.uk