''Catabrosa aquatica'', called brookgrass, water whorl-grass, water whirlgrass and water hairgrass, is widespread species of semi-aquatic

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 an ...

in the genus ''

Catabrosa ''Catabrosa'' is a small but widespread genus of plants in the grass family native to temperate areas of Eurasia, the Americas, and a few places in Africa. ''Catabrosa aquatica'' is in flower in Europe from June to August, and the seeds ripen f ...

'', native to the most of the non-tropical northern hemisphere, and to southern Chile and Argentina. As its scientific and common names suggest, it prefers to grow in wet areas, such as meadows, stream banks and lake shores.

References

Pooideae Plants described in 1812 Flora of Malta {{Pooideae-stub