West Highland Flora

Alpine Clubmoss


Diphasiastrum alpinum

Former names: Diphasium alpinum, Lycopodium alpinum

Diphasium alpinum

Photo © Carl Farmer
18 Sep 2001 Sligachan, Skye

Frequent on high exposed ground, above about 300 m, among grass, heather or moss, or in stony places, sometimes carpeting the ground.

Cones c 1-2 cm.  Leaves c 2-4 mm.

ID: The strongly glaucous colour is not found in any other clubmoss.  The very rare D complanatum can be slightly glaucous and D alpinum can sometimes be rather yellowish-green.  In such cases they can be told apart by D alpinum having the upright branches only slightly flattened; they are strongly flattened (and less upright) in D comlanatum.

Other features: Has long creeping stems from which arise upright fertile and sterile branches, the fertile ones being those with spreading bracts in the picture, with spore-cases in the angle of the bracts.  Sterile branches have leaves closely appressed to stem in 4 rows, these are the bright glaucous ones in the picture.

 

Diphasiastrum alpinum

Photo © Carl Farmer
13 Jul 2004 Trotternish Ridge, Skye
Picture c 2.3 cm wide


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