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If I had to guess, sight unseen, just going by the odds, I would say weed, because pepper plants are pretty recognizable, if you've ever seen one
[url=https://www.google.com/imgres?imgurl=https://chiotsrun.com/wp-content/uploads/2009/05/pepper-plant-blooming.jpg&imgrefurl=https://chiotsrun.com/2009/05/12/blooming-already/&h=300&w=450&sz=54&tbnid=yMA7sdmuwgbp2M:&tbnh=90&tbnw=135&prev=/search%3Fq%3Dgreen%2Bpepper%2Bplant%2Bimages%26tbm%3Disch%26tbo%3Du&zoom=1&q=green+pepper+plant+images&docid=9ag7yrbUxOO9VM&sa=X&ei=bwnBTsyJO-bd0QGE9Zn6BA&ved=0CDkQ9QEwBQ&dur=431]green pepper plant[/url]
Here's a picture of a pepper plant seedling in a pot:
PS. Mg sneaked an answer in while I was working on mine, finding the pix!