Cynodon dactylon

Cynodon dactylon, commonly known as Bermuda grass or as couch grass in Australia and New Zealand, is a warm season grass found worldwide in warm and tropical climates. It is native to Europe, Africa, Australia, and much of Asia and has been introduced to the Americas. Despite its common name, C. dactylon is not native to Bermuda but is an abundant invasive species there. In Bermuda, it has been known as crabgrass, also a name for Digitaria sanguinalis. Interspecific hybrids occur naturally through cross-pollination, but cultivars are also developed by selecting individual plants with desirable traits from seeded or vegetatively propagated stands. These cultivars are typically triploids with three sets of chromosomes.