Nearly all nanners I have dealt with have been sterile, plus I remove them as soon as I notice them.
@MileHiGhost
Are those even nanners though? Looks like some fresh pistils. Being a clone off a flowering plant it would make sense for it to reveg a bit.
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Here are the nanners I am used to seeing, hehe.
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Pluck those suckers out and pray for the best.
This plant continued to grow for many weeks afterwards with no issues. Never saw any pollen. Has been harvested and I have found no seeds.