West Highland Flora

Field Horsetail


Equisetum arvense

 

Equisetum arvense

Photo Carl Farmer
13 Oct 2002 Portree, Skye

Common on waste ground, roadsides and grassland

Stems to 80 cm tall, diameter c 3-5 mm.  Cones c 1-4 cm.

ID: Stems branched, usually without sub-branches, or if so not regular like Wood Horsetail.  Stem grooves less than 20.  Lowest internode of branches longer than stem sheath.  Branches not hollow, cross-shaped in cross section.  Teeth of branches spreading, or at least lax, and pale.

Other features: Very variable, sometimes prostrate.  Fertile stems brown, arising earlier than the sterile ones, not turning green but dying down after releasing spores.

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  Equisetum arvense

Photo Carl Farmer
13 Oct 2002 Portree, Skye

 
     

 

Equisetum arvense

Photo Carl Farmer
13 Sep 2002 Dunvegan, Skye
 

Prostrate form

 

Equisetum arvense

Photo Carl Farmer
26 May 2002 Portree, Skye
 

Young sterile stem

 

Equisetum arvense

Photo Carl Farmer
13 Apr 2003 Scorrybreac, Skye
 

  Equisetum arvense

Photo Carl Farmer
13 Apr 2003 Scorrybreac, Skye
 

Fertile stem


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