There does need to be name for plants that are always considered weeds in an area. "Invasive" is used for prolific spreaders but is frequently reserved for non-

There does need to be name for plants that are always considered weeds in an area. "Invasive" is used for prolific spreaders but is frequently reserved for non-natives. Japanese weed is a good example. Maybe it is well behaved in native range, but in US and most of the world, it is invasive and super-problematic. Another is poison hemlock, which is wise to carefully remove since it is poisonous and invasive. It also depends on the area, English ivy is noxious weed around here because it is invasive and spreads well, but lots of people still like it.