More useful references with an  emphasis on Australian plants and conditions.

Barker, B., Barker, R., Jessop J.P., Vonow H. (2005)  Census of South Australian Vascular Plants.  State Herbarium of South Australia

Bodkin, F. (1991)  Encyclopaedia Botanica The Essential Reference Guide To Native And Exotic Plants In Australia.  Cornstalk Publishing

Bonney, N. B. (2004)  Common Native Plants of the Coorong Region. Australian Plant Society (SA Region) Inc.

Elliott, W. R., Jones, D.  Encyclopaedia of Australian Plants Suitable For Cultivation. Vols. 1-? 

Elliott, W. R., Jones, D. Encyclopaedia of Australian Plants Suitable For Cultivation. Lothian Publishing Co. Pty. Ltd.

Handreck, K. 2001, Gardening Down Under; a guide to healthier soils and plants. Landlinks Press, Collingwood VIC 3066

Harris, T.Y. (1977) Gardening with Australian Plants. Shrubs. Thomas Nelson Australia Ltd

Holliday, I., et al. ‘A Field Guide To’ series Hamlyn Australia

Rainwater harvesting Booklet and downloads http://www.arid.asn.au

Built Environment and Rainwater Tanks http://www.urbanwaterinfo.com

Kutsche, F., Lay, B. (2003) Field Guide to the Plants of Outback South Australia Department of Water, Land and Biodiversity Conservation, South Australia

Latz, P. (1996) Bushfires & Bushtucker. IAD Press

Lullfitz, G. A New Image for West Australian Plants.

Moore. P. (2005) A Guide to Plants of Inland Australia. Reed New Holland

Nicolle, D. (1997) Eucalypts of South Australia Lane Print Group.

Paczkowska, G., Chapman, A.R. (2000) The Western Australian Flora A Descriptive Catalogue. Wildflower Society of Western Australia (Inc.) the Western Australian Herbarium, CALM and the Botanic Gardens & Parks Authority.

S.G.A.P. SA Region (1997) Eremophilas For The Garden Swift Printing Services. Adelaide

Weeds of National Significance http://www.weeds.org.au

Whibley, D.J.E., Symon, D.E. (1992) Acacias of South Australia Second Edition. A.J.Secker Government Printer Adelaide.

Xeriscape  http://www.eartheasy.com