Some references

Specifically on Oman

Field Guide to the Wild Plants of Oman. Helen Pickering and Annette Patzelt. 2008. Royal Botanic Gardens, Kew, 281 p.

The Native Plants of Oman: An Introduction. Clive Winbow. 2008. The Environment Society of Oman, 127 p.

Flora of Oman Volume 1. Piperaceae-Primulaceae. Shahina A. Ghazanfar. 2003. Scripta Botanica Belgica, Meise, National Botanic Garden of Belgium, 262 p.

Flora of Oman Volume 2. Crassulaceae-Apiaceae. Shahina A. Ghazanfar. 2007. Scripta Botanica Belgica, Meise, National Botanic Garden of Belgium, 220 p.

Flora of Oman Volume 3.

An Annotated Catalogue of the Vascular Plants of Oman. Shahina A. Ghazanfar. 1992. Scripta Belgica 2. Meise, National Botanic Garden of Belgium, 153 p.

Wild Flowers of Northern Oman. J. Mandaville Jr. 1978. Office of the Government Adviser for the conservation and development of the Environment, 64 p.

Chenopodiaceae: An illustrated guide to the Chenopodiaceae of Oman. Jacqueline Henrot. 2004. Prepared for internal use at the Oman National Herbarium, 74 p.

Others

The Comprehensive Guide to the Wild Flowers of the United Arab Emirates. M. Jongbloed. 2003. Environment Research and Wildlife Development Agency (ERWDA).

On the web

Plant diversity of Saudi Arabia. http://www.plantdiversityofsaudiarabia.info/index.htm