ok so we have this plant growing in our back yard and it looks just like marijuana but it has seven leaves on a fan, and i thought marijuana has nine leaves. idk really that much about stuff like this so i was just wondering.
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p.s. my mom got it from one of her friends and they called it a "mexican sunflower/\"

please just tell me what this is and if it is maybe related to the marijuana plant or w/e thnx much!!! xoxo