West Highland Flora

Sand Sedge


Carex arenaria

 

Carex arenaria

Photo Carl Farmer
24 Jun 2003 Glenbrittle, Skye
Inflorescence c 4.7 cm long

Quite frequent on dunes or sandy shores with a dune flora.

Fruits c 4-5 mm.  Inflorescence c 3-8 cm long.

ID: Shoots arranged in straight lines across the sand; can be id'd without flowers or fruit by this.  Alternatively, id'd by having several (not just one or two) upper spikes all-male, the middle spikes male at top, female at base, and the lower spikes all-female.

Other features: 5-16 spikes in a rather compact cluster.  Fruit yellowish-brown when ripe, winged, the upper half of the wings toothed, beak of fr c 1 mm, well-notched.  Bracts of spikes are like glumes with a long point.

 

Carex arenaria

Photo Carl Farmer
23 Sep 2002 Glenbrittle, Skye

Straight line formed by shoots across sand

  Carex arenaria

Photo Carl Farmer
24 Jun 2003 Glenbrittle, Skye
Inflorescence c 4.7 cm long

 

Carex arenaria

Photo Carl Farmer
24 Jun 2003 Glenbrittle, Skye

Yellow stamens of male flowers at tip of a spike which is 2/3 the way
down the infloresence and so has mostly female flowers, as shown by
the young green fruits with small brown stigmas at their tips.

 

Carex arenaria

Photo Carl Farmer
(8 Jun 2002 Cocklawburn, Northumbria)


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