Huntingdonshire - Botanical Society of the British Isles

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Pedicularis palustris L. Marsh Lousewort National Status: Not scarce, not threatened County Status: Rare (1 site, 1 tetrad) Site Grid Reference Last Record Woodwalton Fen SSSI & SAC: Compartment 47 Compartment 37 TL22988487 TL23168517 2009 (MM) 2009 (MM) This species was thought extinct until re-discovered by NM in 2005. Persicaria mitis (Schrank) Opiz ex Assenov Tasteless Water-pepper National Status: Nationally Scarce, Vulnerable County Status: Rare (1 site, 1 tetrad) Site Grid Reference Last Record Bluntisham Fen, Brownshill Staunch TL369732 2009 (DB) This late summer flowering annual favours open wet habitats that result from the summer drawdown of ponds and ditches or from the trampling and dunging of cattle. It’s apparent decline has been linked to the closer regulation of water levels, the infilling of ponds and the fencing off of ditches and other water bodies, all of which contribute to the decrease of wet mud habitats (Stewart et al. 1994). It has been known from the vicinity of Brownshill Staunch since at least 1974. Petasites hybridus (L.) Gaertn., Mey. & Scherb. Butterbur National Status: Not scarce, not threatened County Status: Rare (1 site, 1 tetrad) Site Grid Reference Last Record St Neots Common SSSI, Willow Holt TL18606175 2010 (DB) Native in wet places by rivers. It has always been rare in Huntingdonshire. Petroselinum segetum (L.) Koch Corn Parsley National Status: Not scarce, not threatened County Status: Rare (3 sites, 3 tetrads) Site Grid Reference Last Record Easton TL136708 1997 (BD) Old Weston TL099772 1997 (TW) Woodston, Nene Valley Railway cyclepath TL172976 2008 (DB) 54
The exceptionally strong colony present at Woodston, where it grows with Ranunculus parviflorus, is likely to be maintained by disturbance from rabbits and periodic cutting back of scrub to maintain the cyclepath. At Easton it has been recorded from arable habitats while at Old Weston it appeared on a dry bank associated with a hedgerow. Poa infirma Kunth Early Meadow-grass National Status: Nationally Scarce, not threatened County Status: Rare (1 site, 1 tetrad) Site Grid Reference Last Record Conington TL189863 2005 (WM) This species is a recent colonist of Huntingdonshire and was discovered on the verge of a minor road. It appears to be spreading its range nationally, perhaps added by man. Polygala vulgaris L. ssp. vulgaris Common Milkwort National Status: Not scarce, not threatened County Status: Rare (2 sites, 2 tetrads) Site Grid Reference Last Record Brampton Wood SSSI, Compartment J1 TL175695 1996 (SW) Monks Wood, field south of TL194793 2004 (TW) A rare constituent of remnant old grassland on the boulder clay. Polypodium interjectum Shivas Intermediate Polypody National Status: Not scarce, not threatened County Status: Rare (2 sites, 2 tetrads) Site Grid Reference Last Record Brampton Wood SSSI TL17787024 2008 (JD & LB) Monks Wood SSSI, boundary Compartments 27 and 30 TL193794 1995 (CP & JaC) An uncommon fern of mossy tree trunks in ancient woodland and, although there is a lack of recent records, old walls. Some of the old records for Polypodium vulgare may be referable to this species. Polystichum setiferum (Forsk.) Woynar Soft Shield-fern National Status: Not scarce, not threatened County Status: Rare (2 sites, 2 tetrads) Site Grid Reference Last Record Brampton Wood SSSI TL175704 2004 (TW & SW) 55
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Rare Plant Register for Huntingdons
Page 4 and 5:
Hybrid taxa create another set of p
Page 6 and 7: 7. References Cheffings, C.M. & Far
Page 8 and 9: occupy (in Huntingdonshire) a gener
Page 10 and 11: Hemingford Grey TL285701 2008 (LF)
Page 12 and 13: Always very rare in Huntingdonshire
Page 14 and 15: This attractive subspecies was firs
Page 16 and 17: A common sedge nationally but very
Page 18 and 19: Carex viridula Michaux ssp. brachyr
Page 20 and 21: Cerastium arvense L. Field Mouse-ea
Page 22 and 23: Chara canescens Desv. & Lois. Beard
Page 24 and 25: This species is widespread, but rar
Page 26 and 27: Dactylorhiza traunsteinerioides (Pu
Page 28 and 29: Dryopteris borreri (Newman) Newman
Page 30 and 31: Woodwalton Fen SSSI & SAC TL229833
Page 32 and 33: Fritillaria meleagris L. Fritillary
Page 34 and 35: Wansford Railway (disused) TL077496
Page 36 and 37: Hieracium umbellatum L. ssp. umbell
Page 38 and 39: countryside and waste places (Stewa
Page 40 and 41: Juncus compressus Jacq. Round-fruit
Page 42 and 43: Anacamptis morio at Upwood Meadows
Page 44 and 45: Myosurus minimus at Upwood Meadows
Page 46 and 47: Dactylorhiza traunsteinerioides at
Page 48 and 49: Luzula multiflora (Ehrh.) Lejeune s
Page 50 and 51: This rare species occurs in a range
Page 52 and 53: Neottia nidus-avis (L.) Rich. Bird
Page 54 and 55: Last recorded in 1846 from Somersha
Page 58 and 59: Waresley Wood SSSI TL263546 2009 (D
Page 60 and 61: Holme Lode Covert Middle Covert TL2
Page 62 and 63: Ranunculus parviflorus L. Small-flo
Page 64 and 65: Rubus percrispus D. Allen & R.D. Ra
Page 66 and 67: one-year old plants were introduced
Page 68 and 69: Monks Wood SSSI Upton Wood TL190795
Page 70 and 71: Teucrium scorodonia L. Wood Sage Na
Page 72 and 73: ealignment works, the installation
Page 74 and 75: Verbena officinalis L. Vervain Nati
Page 76 and 77: vegetation. It is capable of formin
Page 78 and 79: Appendix 1 Extinctions Many of the
Page 80 and 81: Appendix 2 Data Deficient Species A
Page 82 and 83: Appendix 3 Additional Species Not Y
Page 84 and 85: Lady’s Wood 6, 17, 53, 60, 66 Lit
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Huntingdonshire - Botanical Society of the British Isles

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