Very strange. That sounds like some type of bloom/fruiting structure. I suggest you take a photo or two and show them to the horticulturist at your local County Extension Office. They may be able to assess it better with a visual. Their contact info is:
Lee County Extension, 3406 Palm Beach Blvd, Ft. Myers, FL 33916-3736
Phone: (239) 533-4327 Fax: (239) 485-2305
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