This plant has suddenly volunteered in our yard beneath a species rhododendron that we have had growing there for around 15 to 20 years. Is this an arctic starflower? It looks a lot like the ones that are growing in the Camosun Bog, 2 or 3 km north of us. If so, any idea how it could have suddenly appeared here -- that is, how would the seeds have spread if there don't seem to be any other such plants in the immediate vicinity?
E-Flora BC Atlas Page shows this listed as Trientalis latifolia, western starflower, with synonyms and alternate names Trientalis borealis subsp. latifolia (Hook.) Hultén Trientalis europaea var. latifolia [Hook.] But under Additional notes, it distinguishes T. borealis from T. latifolia, so you might want to check that. There seem to be a good number of sightings. I posted T. latifolia in 2018 at https://forums.botanicalgarden.ubc.ca/threads/may-2018-in-the-garden.93027/#post-363484. I think your leaves look the same as these. Wikipedia has the genus of these listed under Lysimachia latifolia.
I don't know the answer to this kind of question, but this is within its range, see Starflower. They are pollinated by native bees.
