Only one plant found. One other 30m away which was finished but could have been P. viriosum based on previous sightings. Unclear how long it's been since its been seen here. Flowering slightly earier than previous years (2005?) but that fits with this early and unpredictable season.
I saw P. venustum flowering there February 2024. I think I have only seen P. venustum in that herbfield. The herbfield to the north only had P. viriosum flowering last year, however I have seen both species flowering there in previous years.