Plants : PoaceaeFerns and Flowering Plants

Trisetum flavescens (L.) P.Beuav.

Yellow Oat-grass

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Trisetum flavescens

Description: An attractive-looking yellowish perennial grass, with delicate oat-like spikelets and flowers. Found in base-rich or calcareous grassland (but not usually on sand dunes) and mainly associated with the basaltic scarp, old chalk quarries, and Carboniferous limestone regions.

Downy oat-grass (Helictotrichon pubescens) overlaps with this species in geography and habitat but is a coarser species with larger, more oat-like spikelets.

All names: Trisetum flavescens (L.) P.Beuav.; Avena flavescens L.

Distribution Map from NBN: Trisetum flavescens at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Trisetum flavescens at iNaturalist World Species Observations database.

 Hackney, P., 2026. Trisetum flavescens. (L.) P.Beuav.. [In] Flora of Northern Ireland.
https://habitas.org/flora/species.php?item=2611. Accessed on 2026-11-02.