i was looking at this thread http://forum.grasscity.com/outdoor-grow-journals/590543-2010-outdoor-medical-grow-pics-10.html and it reminded me of 2 seperate occasions in the past where i had to remove these two little seedling things from my soil. They looked exactly like little weed plants but i just killed them because i had no use and didnt want them to eat nutes in the soil.. Anyways I cant explain what they came from. Can weed clone itself from its roots?