Skip to main content
You are here
Facebook icon
Pinterest icon
Twitter icon

Agrostis trachychlaena (bentgrass)

A rare grass species, Agrostis trachychlaena occurs within an area of only 16 km² on two islands in the South Atlantic Ocean. Fewer than 250 mature individuals are thought to survive.
Agrostis trachychlaena (bent grass)

Agrostis trachychlaena (Photo: Niek Gremmen)

Species information

Scientific name: 

Agrostis trachychlaena C.E. Hubb.

Common name: 

bentgrass (although this name is also applied to other species within this genus)

Conservation status: 

Endangered (EN) according to IUCN Red List criteria.


Rocky slopes, open patches in Spartina arundinacea tussock, and around albatross nesting sites.

Key Uses: 

None known.

Known hazards: 

None known.


Genus: Agrostis

About this species

Agrostis trachychlaena is a rare species of grass that grows in loose clumps on rocky slopes on two islands in the South Atlantic Ocean. Specimens of A. trachychlaena were first brought back from Inaccessible and Nightingale Islands by botanist Erling Christophersen, as part of the Norwegian Scientific Expedition in 1938. Specimens from Nightingale Island were collected by scientist Nigel M. Wace on his visits in 1968 and 1976. The most recent collections were made by Peter Ryan in 2007.


main info

Help us solve a 2,000 year-old mystery

Aloe vera in Kew's Princess of Wales Conservatory

Find out how you can help Kew scientists unlock the benefits of Aloe vera.

State of the World’s Plants report – out now

Pantanal in Brazil

Kew has launched a ground-breaking new report highlighting the global status of plants.