They are growing next to a much older Sabal causiarum and surrounded by Sabal palmettos. They're very beautiful palms, and gigantic. From what I've heard, they are very fast growers as well. The seeds are somewhat easy to distinguish from Sabal palmetto as well since they are about double the mass. The first picture is of Sabal palmetto. 1. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.