Cynodon dactylon, commonly known as Bermuda grass, is a grass found worldwide. It is native to Europe, Africa, Australia and much of Asia. It has been introduced to the Americas. Although it is not native to Bermuda, it is an abundant invasive species there. In Bermuda it has been known as "crab grass" (also a name for Digitaria sanguinalis). Other names are Dhoob, dūrvā grass, ethana grass, dubo, dog grass, dog's tooth grass, Bahama grass, crab grass, devil's grass, couch grass, Indian doab, arugampul, grama, wiregrass and scutch grass. Description The blades are a grey-green colour and are short, usually long with rough edges. The erect stems can grow tall. The stems are slightly flattened, often tinged purple in colour. The seed heads are produced in a cluster of two to six spikes together at the top of the stem, each spike long. It has a deep root system; in drought situations with penetrable soil, the root system can grow to over deep, though most of the root mass is less than under the surface. The grass creeps along the ground with its stolons, and roots wherever a node touches the ground, forming a dense mat. C. dactylon reproduces through seeds, stolons, and rhizomes. Growth begins at temperatures above with optimum growth between ; in winter, the grass becomes dormant and turns brown. Growth is promoted by full sun and retarded by full shade, e.g., close to tree trunks. Cultivation Cynodon dactylon is widely cultivated in warm climates all over the world between about 30° S and 30° N latitude, and that get between of rainfall a year (or less, if irrigation is available). For example, it is grown in the U.S. mostly in the southern half of the country. Cultivars Hundreds of cultivars have been created specifically for environmental tolerance and stakeholder requirements. New cultivars are released yearly. Uses Religious Commonly known as "durva" or dūrvāyugma in India, this grass is used in the Ayurveda system of medicine. In Hinduism, it is considered important in the worship of Lord Ganesha. A clump of 21 shoots of this grass is usually offered during puja (worship). It has been a part of Hindu rituals since Vedic times. A unique festival called Durva Ashtami, dedicated to this grass, is celebrated on the 8th day of Shukla Paksha of Bhadra month of the Hindu calendar. It is known as "'Arugampul'" in Tamil and