Rare Plant Register for Huntingdonshire - Botanical Society of the ...
Rare Plant Register for Huntingdonshire - Botanical Society of the ...
Rare Plant Register for Huntingdonshire - Botanical Society of the ...
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Sium latifolium L.<br />
Greater Water-parsnip<br />
National Status: Nationally Scarce,<br />
Endangered, BAP<br />
Woodwalton Fen SSSI & SAC<br />
Dyke 2b<br />
Dyke 2c<br />
Dyke 2d<br />
Dyke 3c<br />
County Status: <strong>Rare</strong> (1 site, 1 tetrad)<br />
Site Grid Reference Last Record<br />
75<br />
TL230855<br />
TL232855<br />
TL234855<br />
TL234852<br />
2011 (MM)<br />
2011 (MM)<br />
2011 (MM)<br />
2011 (MM)<br />
Dyke 4b TL233850 2009 (DB)<br />
Dyke 4c<br />
Nor<strong>the</strong>rn boundary dyke<br />
TL23478507<br />
TL23248572<br />
2011 (MM)<br />
2010 (DB)<br />
This species has undergone a catastrophic decline in Britain over <strong>the</strong> last 200 years. Even in<br />
many protected sites, decline has been observed and new individuals are rare. Part <strong>of</strong> <strong>the</strong><br />
reason <strong>for</strong> this undoubtedly relates to its specialist requirements. It is intolerant <strong>of</strong> intensive<br />
grazing and dyke management regimes but requires open water to be maintained and light<br />
vegetation management to provide opportunities <strong>for</strong> <strong>the</strong> establishment <strong>of</strong> seedlings (Stewart<br />
et al. 1994).<br />
Sonchus palustris L.<br />
Marsh Sow-thistle<br />
National Status: Nationally Scarce, not<br />
threatened<br />
County Status: Scarce (8 sites, 9 tetrads)<br />
Site Grid Reference Last Record<br />
Godmanchester, West Meadow riverbank TL220703 2011 (DB)<br />
Monks Wood SSSI TL197795 2008 (DB)<br />
Morborne Hill TL120907 1998 (PT)<br />
New Cut TL22089195 2011 (MB)<br />
Of<strong>for</strong>d D’Arcy, Rectory Farm TL217665 2000 (TW)<br />
Portholme SSSI & SAC TL236702 2003 (SS)<br />
Ramsey Heights Nature Reserve TL245849 2008 (DB)<br />
Woodwalton Fen SSSI & SAC TL235847<br />
TL227850<br />
2010 (DB)<br />
2010 (DB)<br />
Woodwalton Fen, farmland dyke east <strong>of</strong> TL235850 2010 (DB)<br />
Woodwalton Marsh SSSI TL212812 2002 (TW)<br />
This species is <strong>of</strong>ten treated as an alien in <strong>Huntingdonshire</strong> (e.g. Preston et al. 2002), but this<br />
view is probably a little too ‘black and white’ <strong>for</strong> com<strong>for</strong>t and certainly does not pay due credit<br />
to what is a great success story. This Nationally Scarce species was native to<br />
<strong>Huntingdonshire</strong> but was driven to extinction as a result <strong>of</strong> <strong>the</strong> drainage <strong>of</strong> <strong>the</strong> Fens in <strong>the</strong> 19 th<br />
Century. It was re-introduced to Woodwalton Fen in 1912, using native stock, where it
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