Agrostis gigantea
- Photograph, systematic position, morphology, biology, distribution, ecology and economic significance of Redtop, Black Bent or Red Top Bent.
- http://www.agroatlas.spb.ru/weeds/Agrostis_gigantea_en.htm

Agrostis stolonifera
- Several photographs and some identifying features of Creeping Bent.
- http://www.plant-identification.co.uk/skye/gramineae/agrostis-stolonifera.htm

Agrostis capillaris
- Two photographs and some identifying features of Common Bent which used to be known as Agrostis tenuis.
- http://www.plant-identification.co.uk/skye/gramineae/agrostis-capillaris.htm

Agrostis vinealis
- Description and photograph of Brown Bent.
- http://www.plant-identification.co.uk/skye/gramineae/agrostis-vinealis.htm

Agrostis canina
- Several photographs and some identifying features of Velvet Bent.
- http://www.plant-identification.co.uk/skye/gramineae/agrostis-canina-ss.htm

Agrostis
- List of species, synonymy, and common names.
- http://www.nic.funet.fi/pub/sci/bio/life/plants/magnoliophyta/magnoliophytina/liliopsida/poaceae/agrostis/

Agrostis hyemalis
- Image, description, and range in USA.
- http://www.npwrc.usgs.gov/resource/plants/florane/species/2/agrohyem.htm