found these growing on the dyke beside the fraser river in Richmond I would suspect that this is their overwinter size and possible grow taller in the warm season thank you as always wonderful sunshine eh!!!!!!!
Looks like a Wild Chervil (Anthriscus sylvestris) to me. Wild Chervil (Anthriscus sylvestris) | Lillooet Regional Invasive Species Society
It is likely City of Richmond already knows about this population, but it might be worth sending them an email if this was on City land: City of Richmond BC - Invasive Species - Wild Chervil