Melinis repens
Encyclopedia
Melinis repens is a species of grass
Poaceae
The Poaceae is a large and nearly ubiquitous family of flowering plants. Members of this family are commonly called grasses, although the term "grass" is also applied to plants that are not in the Poaceae lineage, including the rushes and sedges...

 known by the common names rose Natal grass, or simply Natal grass, and Natal redtop. It is native to southern Africa but it is well known on other continents, including North America and Australia, as an introduced species
Introduced species
An introduced species — or neozoon, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its indigenous or native distributional range, and has arrived in an ecosystem or plant community by human activity, either deliberate or accidental...

 and sometimes a noxious weed. It is an annual or perennial grass which may grow up to a meter tall, its growth rate dependent on temperature. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

is an open array of branches bearing spikelets which are densely coated in silky white or pink hairs.

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