Skye Flora

Downy Oat-grass


Avenula pubescens

 

Avenula pubescens

Photo © Carl Farmer
12 Jul 2003 Suardal, Isle of Skye

Fairly common in alkaline grassland and limestone crevices.

These pictures taken in very windy conditions; hoping for better ones at some point.

Spikelets c 10-16 mm.  Plant typical medium grass height, 30-100 cm tall.

Skye ID: Lower sheaths hairy.  Panicle branches in whorls of 3 or more, many with only one spikelet, normally none with more than 3 spikelets.  Spikelets normally have 2-3 flowers, all with awns protruding from the spikelet, the length of protruding awn not dissimilar to the length of the spikelet.

Other features: Looks like a subdued version of Tall Oat Grass, but that has just one awn sticking out of most spikelets, our species has 2 or 3 (usually 2 from specimens I've examined on Skye).  Meadow Oat Grass has 3-6.  Yellow Oat Grass has 2-4 but the spikelets are much smaller than our species, about 6 mm long.

Ligule c 3-7 mm long.  Lower leaves may be hairy like the sheaths, upper leaves hairless. 

 

Avenula pubescens

Photo © Carl Farmer
29 Jun 2003 Suardal, Isle of Skye

  Avenula pubescens

Photo © Carl Farmer
29 Jun 2003 Suardal, Isle of Skye

  Avenula pubescens

Photo © Carl Farmer
29 Jun 2003 Suardal, Isle of Skye
 

         

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