Significance of the C₄ Pathway in Triodia irritans (Spinifex), a Grass Adapted to Arid Environments

Abstract

The existence of the C₄ pathway of photosynthesis and also a novel form of Kranz-type leaf anatomy in T. irritans support the case for the inclusion of the genus Triodia in the Eragrosteae. They also provide further evidence for the suggestion that C₄ plants are at a selective advantage in hot arid environments.