erigeron canadensis or conyza canadensis. common names include horseweed, canadian horseweed, canadian fleabane, coltstail, marest

angiosperm asteraceae background beautiful botany bright butterweed canadensis canadian coltstail conyza erigeron family field fields fleabane flora flower galicia gardens grass green herb herbaceous horseweed koniza leaf lime marestail meadow medicinal motley natural nature ostudnika plant pochechuynaya reproduction season spain summer therapeutic weed wild