categoryZGrasses Grasses List 

LYME GRASS

LYME-GRASS

Leymus arenarius

Grasses Family [Poaceae]

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category
category8Grasses
status
statusZnative
flower
flower8green
inner
inner8cream
petals
petalsZ0
type
typeZspiked
stem
stem8round
sex
sexZbisexual

16th June 2009, Colwuyn Bay, Welsh Coast. Photo: © RWD
Grows right near the coast on shifting sands to 1.5m in height (sometimes up to 2m).


30th May 2009, Formby coast, Southport, NW Endgland Photo: © RWD


16th June 2009, Colwyn Bay, Welsh Coast. Photo: © RWD
The leaves are glaucous-green


30th May 2009, Formby coast, Southport, NW Endgland Photo: © RWD
The leaves are flat and become in-rolled and between 8 to 20mm wide.


30th May 2009, Formby coast, Southport, NW Endgland Photo: © RWD
The flowers are on long round stems, longer than the leaves.

The flower spike is less than 35cm long, these fawn-coloured specimens having been spent.



16th June 2009, Colwuyn Bay, Welsh Coast. Photo: © RWD
Spikelets usually in pairs on a node (but occasionally in 3's - none noticeable here).

The florets are in 3 to 6's and all except for the end one are bisexual. This specimen displaying its anthers mostly in a horizontal position.



30th May 2009, Formby coast, Southport, NW Endgland Photo: © RWD


16th June 2009, coast, Colwyn Bay, North Wales. Photo: © RWD
The leaves start off flat (centre) eventually becoming in-rolled (left).


1st May 2010, coast, Sandscale Haws, South Cumbria. Photo: © RWD
When the spikelets in the inflorescence part the anthers on their long filaments flop over displaying their long, thin, white filaments with a pale-green anther atop. The lemmas (long pointed things) usually have 7 veins.


1st May 2010, coast, Sandscale Haws, South Cumbria. Photo: © RWD


Many similarities to : Wood Barley (Hordelymus europaeus) (the Genus of which Clive Stace thinks should be amalgamated with Leymus as they have some similar characteristics).


  Leymus arenarius  ⇐ Global Aspect ⇒ Poaceae  

Distribution
 family8Grasses family8Poaceae
 BSBI maps
genus8Leymus
Leymus
(Leymus)

LYME GRASS

LYME-GRASS

Leymus arenarius

Grasses Family [Poaceae]