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Rare Plant Register for Huntingdonshire - Botanical Society of the ...

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Orobanche elatior Knapweed Broomrape 1975<br />

Oxalis acetosella Wood-sorrel 1969<br />

Papaver hybridum Rough Poppy 2006 11<br />

Paris quadrifolia Herb-Paris 1982<br />

Polygonum rurivagum Cornfield Knotgrass 1969<br />

Potamogeton berchtoldii Small Pondweed 1989<br />

Potamogeton gramineus Various-leaved Pondweed 1989<br />

Potamogeton x salicifolius P. lucens x perfoliatus 1975<br />

Potamogeton x<br />

sparganiifolius<br />

P. gramineus x natans 1979<br />

Ranunculus arvensis Corn Buttercup 1984<br />

Ranunculus hederaceus Ivy-leaved Water-crowfoot 1973<br />

Ranunculus peltatus Pond Water-crowfoot 1981<br />

Rosa agrestis Small-leaved Sweet-briar 1970<br />

Rosa micrantha Small-flowered Sweet-briar 1974<br />

Rosa obtusifolius Round-leaved Dog-rose 1975<br />

Sambucus ebulus Dwarf Elder 1975<br />

Scabiosa columbaria 12 Small Scabious 1976<br />

Scleranthus annuus Annual Knawel 1972<br />

Silene noctiflora Night-flowering Catchfly 1979<br />

Spergula arvensis Corn Spurrey 1979<br />

Thymus polytrichus Wild Thyme 1979<br />

Trifolium micranthum Slender Trefoil 1968<br />

Valeriana dioica Marsh Valerian 1979<br />

Valerianella dentata Narrow-fruited Cornsalad 1975<br />

Viola x scabra V. hirta x odorata ?<br />

10<br />

The few recent records appear to derive from <strong>the</strong> sowing <strong>of</strong> wildflower seed mixes.<br />

11<br />

This record was a casual occurrence at Holme Fen SSSI. Given <strong>the</strong> habitat context it is<br />

excluded from <strong>the</strong> main <strong>Register</strong>.<br />

12<br />

Recently found sown at Crown Lakes, Farcet with o<strong>the</strong>r plants <strong>of</strong> Continental origin.<br />

91

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