herbarium. herb canadian small petal on white.

erigeron canadensis nature herb canadian horseweed plant weed flora bloom butterweed coltstail conyza flower marestail wild annual autumn fleabane field hairy invasive meadow green outdoor summer sunlight uncultivated grass koniza medicinal ostudnika plants pochechuynaya siberia therapeutic armenia asteraceae beautiful blossom bokeh botanical botany branchy bright bud colorful