Anthoxanthum aristatum
Encyclopedia
Anthoxanthum aristatum 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 name annual vernalgrass. It is native to North Africa and southern Europe as far north as France, and it is known in other regions, including northern Europe and North America, 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...

. It is occasionally a minor weed of fields. This is an annual grass growing in small tufts up to about 30 centimeters tall. The leaves are short, pointed, and somewhat hairy. 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 up to 3 centimeters long and one wide, flat and hairy with spikelets a few millimeters long.

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