Whiskered Brome
Bromus grossus
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Bromus_grossus
Taxonomy & Classification
Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Poales
Family
Poaceae
Genus
Bromus
Whiskered Brome belongs to the family Poaceae, order Poales, within the Liliopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Whiskered Brome faces severe population declines due to the widespread intensification of agricultural practices and loss of traditional farming systems across Europe. The species has experienced dramatic range contractions as modern herbicide use and changes in crop rotation have eliminated the weedy field margins and extensively managed arable lands it depends upon.
Key Facts
Habitat & Distribution
Extensively managed arable fields, field margins, and traditional agricultural landscapes, particularly in cereal-growing regions with calcareous soils. The species typically occurs in areas with low-intensity farming practices and reduced herbicide application.
Threats
IUCN Red List: Critically Endangered
Whiskered Brome faces severe population declines due to the widespread intensification of agricultural practices and loss of traditional farming systems across Europe. The species has experienced dramatic range contractions as modern herbicide use and changes in crop rotation have eliminated the weedy field margins and extensively managed arable lands it depends upon.
Agricultural intensification and herbicide use
Habitat fragmentation of arable landscapes
Loss of traditional extensive farming practices
Climate change affecting suitable habitat
Competition from invasive grass species
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (CR).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | DDData Deficient | CRCritically Endangered | Lower local risk |
| EU | DDData Deficient | CRCritically Endangered | Lower local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org
This page: SpeciesRadar (2025). Whiskered Brome (Bromus grossus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/whiskered-brome