''Cenchrus echinatus'' is a species of

grass Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns a ...

known by the common names southern sandbur, spiny sandbur, southern sandspur, and in Australia, Mossman River grass.''Cenchrus echinatus''.
National Weeds Strategy. It is native to

North North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north ...

and

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the sout ...

It is a clump-forming annual grass growing up to tall. The leaves occur with or without hairs and measure up to wide. The ligule is a fringe of hairs. The grass has barbed burrs of long. In Australia it forms an invasive weed in coastal situations. Southern Sandbur (1000986443)

Ecology

The species is invasive in New Caledonia,

Tahiti Tahiti (; Tahitian ; ; previously also known as Otaheite) is the largest island of the Windward group of the Society Islands in French Polynesia. It is located in the central part of the Pacific Ocean and the nearest major landmass is Austra ...

, and Rarotonga.

References

echinatus Grasses of North America Grasses of South America Biota of Clipperton Island Plants described in 1753 Taxa named by Carl Linnaeus {{Panicoideae-stub