Petty spurge: cancer treatment?

BBC news: garden weed could treat skin cancer.

Top image: Euphorbia peplus, petty spurge.  A pressed plant specimen from the herbarium at the Manchester Museum.  Collected by F C King in 1883 from waste land near Ribchester, Lancashire.  Charles Bailey, a Manchester cotton merchant, then aqcuired it from King (donation? Exchange? Or purchase? – we don’t know) and left it and 330,000 others to the museum on his death in 1925.

Bottom image: illustration of Euphorbia peplus (common name: petty spurge) from the Manchester Museum’s cultivated collection.  This and hundreds of other illustrations, plant cuttings and newspaper clippings were donated to the museum by Leo Grindon’s wife after he died, in 1911.