### Clue: What Japanese 11 of 17 do, perhaps, right in line (6)
### Answer: REGROW 
 ### Explanation: Definition: What Japanese 11 of 17 do
 [ EG(abbrev. for "exempli gratia";for example;perhaps) + R(abbrev. for "right") ] **contained in**(in) ROW(an arrangement of persons or things in a line).
Answer: The very resilient Japanese knotweed, a species of the knotweed genus, vigorously resprouts from its roots. But what weed does not?