Diario de aphili8

http://midatlanticnature.blogspot.com/2012/05/how-to-identify-white-violets-of-mid.html#:~:text=The%20small%20white%20flowers%20typically,two%20petals%20reflexed%20and%20twisted.&text=Another%20important%20identification%20point%20is,are%20more%20ovate%20to%20orbicular.

Common Fumitory - fumaria officinalis - This is the most often seen naturalized here

https://gobotany.nativeplanttrust.org/species/fumaria/officinalis/
https://www.naturespot.org.uk/species/common-fumitory

Common Ramping Fumitory -Fumaria muralis seems to pop up too

Guides to Fumitory in the UK

https://naturebftb.co.uk/wp-content/uploads/2021/04/Fumitories-and-Ramping-fumitories-crib.pdf

http://webidguides.com/_templates/group_fumaria.html

Parts of goldenrod
https://uwaterloo.ca/astereae-lab/research/goldenrods/goldenrod-morphology

Genus divisions
https://uwaterloo.ca/astereae-lab/research/goldenrods/classification-and-illustrations