Triggerplants are not only found in Australia, but they reach their greatest diversity there. A few species have ranges which extend to India, China, or Japan, with several more in Papua New Guinea, but of the nearly two hundred identified species, the great majority are found in Australia.
Triggerplants grow in the same poor soils favoured by carnivorous plants, poor soils in which carnivorous plants have an advantage in that they can obtain nitrogen from their prey. In fact, when you find a triggerplant, there is usually a known carnivorous plant nearby.
This is the first comprehensive book on triggerplants. There is a chapter on triggerplants in the garden and landscape which includes how to grow them and how to obtain them (eg: seed sources in Australia).
Douglas W Darnowski has a doctorate in field plant biology from Cornell University and is now Assistant Professor of Biology at Washington College in Maryland, USA. He is a frequent visitor to Australia.