Species recorded in fewer than 10% of fields were as follows. From 6 fields: Raphanus raphanistrum ssp. raphanistrum (Wild Radish), Veronica serpyllifolia (Thyme-leaved Speedwell) and Alopecurus myosuroides (Black-grass). From 5 fields: Corn Spurrey. From 4 fields: Aethusa cynapium (Fool’s Parsley), Euphorbia peplus (Petty Spurge), Mentha arvensis, Setaria verticillata. From 3 fields: Panicum capillare, Kickxia elatine, Sherardia arvensis (Field Madder). From 2 fields: Ranunuculus sardous, Ballota nigra (Black Horehound), Stachys arvensis, Amaranthus hybridus, Linum usitassissimum (Cultivated Flax) and Fumaria officinalis (Common Fumitory). Only recorded from one field: Amaranthus retroflexus, Anthemis cotula (Stinking Chamomile), Aphanes arvensis (Parsley Piert), Chenopodium glaucum, Euphorbia exigua, Lamium amplexicaule, Polygonum rurivagum (Cornfield Knotgrass), Rorippa sylvestris (Creeping Yellow-cress), R. palustris (Marsh Yellow-cress), Setaria pumila, Brassica napus var. oleifolia (Rape), Galinsogo parviflora, Nicandra physalodes, Thlaspsi arvense (Field Penny-cress), Urtica urens (Small Nettle), Ambrosia artemisiifolia (Ragweed), Fagopyrum esculentum (Buckwheat) and Veronica agrestis (Green Field Speedwell). Acknowledgements Thanks go too to Heather Colls, Lauri MacLean and Anne Griffiths for their records and to Julian Woodman for alerting us to Briza minor in a maize field. References Evans, T.G. 2007. Flora of Monmouthshire. Chepstow Society. Wade, A.E. 1970. The Flora of Monmouthshire.
Nitella tenuissima (Desv.) Kütz.) (Dwarf Stonewort) at Cors Bodeilio National Nature Reserve, Anglesey Peter S. Jones During August 2021 a significant new population of Nitella tenuissima was noted in an artificial peat pool at Cors Bodeilio National Nature Reserve – one of the three rich-fen NNRs which make up the core of the Anglesey and Lleyn Fens SAC. BSBI Welsh Bulletin No. 109 March 2022
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