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HARD SHIELD FERN

Polystichum aculeatum

Male & Buckler Fern Family [Dryopteridaceae]  
Formerly in: Aspidiaceae Family, which has been deprecated.

Spores:
spores8jan spores8feb spores8jul spores8july spores8aug spores8sep spores8sept spores8oct spores8nov spores8dec

category
category8Ferns
status
statusZnative

22nd June 2009, Limestone Paving, Gait Barrows, Silverdale. Photo: © RWD
Roots sheltered in a shallow gryke.


7th June 2014, Limestone Paving, Gait Barrows, Cumbria. Photo: © RWD
Prefers the protection of a gryke.


22nd June 2009, Limestone Paving, Gait Barrows, Silverdale. Photo: © RWD
Alternate golden yellow fronds. Diagnostic feature: The pinnae (leaflets) at the base are less than half the length of the longest in the middle.


22nd June 2009, Limestone Paving, Gait Barrows, Silverdale. Photo: © RWD


22nd June 2009, Limestone Paving, Gait Barrows, Silverdale. Photo: © RWD
Single groove down the stem.


22nd June 2009, Limestone Paving, Gait Barrows, Silverdale. Photo: © RWD
Lower stem has straw-coloured rough hairs.


7th June 2014, Limestone Paving, Gait Barrows, Cumbria. Photo: © RWD
The parallel alignment of the 'thumbs' to the rachis (main stem) is easier to see from the underside.


22nd June 2009, Limestone Paving, Gait Barrows, Silverdale. Photo: © RWD
Sori on underside of frond.


22nd June 2009, Limestone Paving, Gait Barrows, Silverdale. Photo: © RWD
Sori on underside of frond.


7th June 2014, Limestone Paving, Gait Barrows, Cumbria. Photo: © RWD
Close-up of sori.


Some similarities to : Male Fern.

Not to be confused with : Hard Fern [a plant with similar name]


  Polystichum aculeatum  ⇐ Global Aspect ⇒ Dryopteridaceae  

Distribution
 family8male fern family8buckler fern family8Dryopteridaceae

 BSBI maps
genus8Polystichum
Polystichum
(Hard Shield Ferns)

HARD SHIELD FERN

Polystichum aculeatum

Male & Buckler Fern Family [Dryopteridaceae]  
Formerly in: Aspidiaceae Family, which has been deprecated.

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