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Briza media


Briza media is a perennial grass in the family Poaceae and is a species of the genus Briza.

Common name includes quaking-grass, common quaking grass, cow-quake, didder, dithering-grass, dodder-grass, doddering dillies, doddle-grass, earthquakes, jiggle-joggles, jockey-grass, lady's-hair, maidenhair-grass, pearl grass, quakers, quakers-and-shakers, shaking-grass, tottergrass, wag-wantons


Grows to 40cm and flowers June to September in the UK. Characterised by fine stems and hops-shaped green and purple spikelets<ref>Wildlife Trusts - Quaking Grass</ref>. Distinguished from the closely related Briza maxima by the size of the flower spikelets.

Distribution and Habitat

This grass species is common in England and Wales <ref>Wildlife Trusts - Quaking Grass</ref> It grows in dry calcareous grassland<ref>NaureSpot - Quaking Grass</ref>. Its seeds are consumed by many farmland birds.


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