common beggarticks (bidens frondosa). leaf detail closeup

asteraceae bidens frondosa compositae abaxial dentate margin hirtellous lamina blade leaf leaflet petiolate petiole petiolulate segment sessile subglabrous venation common beggarticks bur marigold devil 039 bootjack pitchfork leafy weed sticktights tickseed sunflower frondosa detail closeup virtual herbarium belarus flora: focus-stacked closeups wild cultivated plants including flowers leaves fruits intended illustrations botanical manuals