West Highland Flora

Alpine Meadow-grass


Poa alpina

 

Poa alpina

Photo Craig Robson
Ben Lawers area mid July 2004

Rare on mountain rocks, usually calcareous.

Plant up to c 40 cm high, leaves c 2-4 mm wide, ligule c 2-6 mm long

ID: Told from Viviparous Fescue by the leaves being flat, or flattenable, not threadlike.  Told from Alpine Hair-grass by the glumes being less than twice as long as broad.  These are the only other two viviparous grasses in the area and they both occur on mountains like the present species.

Other features: Spikelets normally have 2-4 flowers, whose parts are replaced by a young plant.  Eventually the stems bend or fall over and then the young plants may root in the ground and become separate individuals.  Spikelets normally purple and green, the bottom three pictures show a plant that had them very whitish.

 

Poa alpina

Photo Craig Robson
Ben Lawers area mid July 2004

Above: Single spikelet, with young plants
just beginning to show.

Right: ligule

  Poa alpina

Photo Craig Robson
Meall Garbh area 18th July 2004

 

Poa alpina

Photo Craig Robson
Meall Garbh area 18th July 2004

Above: spikelets with young plants,
beginning to bend down to the ground.

Right: Plant growing from previous
generation's spikelet

  Poa alpina

Photo Craig Robson
Meall Garbh area 18th July 2004

 

Poa alpina

Photo Craig Robson
Meall Garbh area 18th July 2004


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