Editing Fallopia convolvulus (section)

==Distribution and habitat==
''Fallopia convolvulus'' grows most commonly on disturbed or cultivated land, in northern Europe typically on warm, sunny, well-drained sandy or [[limestone]] soil types,<ref name=Blamey/><ref name=arable/> but in hotter, drier areas like Pakistan, on moist shady sites.<ref name=pakistan/> It ranges from sea level in the north of its range, up to 3600 m altitude in the south in the [[Himalaya]].<ref name=china/><ref name=pakistan/><ref name=Blamey/>