Blackstonia perfoliata (L.) Huds.
| GB Red List | England Red List | GB Scarcity | Norfolk Scarcity |
| Rare |
Native
Yellow-wort is an annual or biennial herb of open dry (but frequently winter-wet), often stony, shallow basic soils. Its main habitats are calcareous grasslands and fixed sand dunes, but it can be an abundant colonist of disturbed ground, including quarries and railway cuttings, and on road verges and pathsides (R. D. Porley in Preston et al, 2002)
In West Norfolk, Yellow-wort is now confined to the chalk banks of the cut-off channel at Feltwell and Hockwold, a relatively recent find (1992 JS). There are three parishes listed in Trimmer (1866 & 1875): Bagthorpe, Swaffham and Ringstead. There do not seem to be any further West Norfolk records in the intervening years.
In East Norfolk, there is a history of records in the south-east of the county. Petch & Swann (1968) list six sites between 1950 and 1962 and one is listed again in their Supplement (1975). More recently, it was recorded at Framingham Pigot in 1997 and one plant was seen in 2000 in a dry ditch at Brooke Wood.
| Year | GR | Locality | Recorders |
|---|---|---|---|
| 1997 | TG268031 | Framingham Pigot | ALB, JBM |
| Forty Acre Plantation | |||
| 2000 | TM268989 | Brooke | CR |
| 1 plant - dry ditch edge by track in Brooke Wood. Recorded here by SP for A Flora of Norfolk (1999) and by EAE in 1953 (Petch & Swann, 1968) | |||
| 2007 | TL6988 | Hockwold | AW |
| Cut-off channel | |||
| 2018 | TL700909 | Feltwell | JMP, NFG |
| Cut-off channel. Also on this occasion at TL700908, TL700911, TL700912. By AW in 2007 at TL699904 & TL700915 and by JS in 1992 at TL698904. | |||