Luckily, given all the diversity, nothing appears to be endangered! I guess they should all be fine, assuming that the marshland habitats in BC...
Ah. I guess by "our region," I'm accustomed to the P and M definition: Pacific Northwest coastal->inland Cascade mountain region from Eugene,...
I'm going through iNaturalist and GBIF to try to figure out the total known number of native horsetail species (genus Equisetum) in our region....