Back in September, I came across this water-loving marsh smartweed (Polygonum amphibium var. emersum) along the recently-flooded shoreline of Beaver Mines Lake in southwestern Alberta. It’s not a plant I was previously familiar with, but I did some searching and found that it is a member of the buckwheat family and a North American native, alongside a large number of other smartweeds. According to my reading, some smartweeds are considered invasive species in certain provinces and states, but none seem to appear on the Alberta list. Do any smartweeds grow where you live?