While it can be easy to overlook the tiny windmill palm seed, the windmill palm is much harder to miss. These 40 foot palms have massive trunks covered with coarse gray brown hairs and giant palm fronds arranged in a symmetrical crown with an 8 foot spread. However, you are unlikely to find windmill palm seeds out in the wild. These trees are not Native to North America although they can be cultivated in growing zones 8A to 11.
Identify the location. Unless you are in the windmill palm's native habitat, or in the tropical and subtropical climate regions of North America, then it is unlikely that what you have stumbled upon is a windmill palm seed.
Note its arrangement. Windmill palm seeds grow in trees in late summer in grape-like clusters, covered in a thin seed coat that will range in color from yellow to pink to dark blue depending on their degree of ripeness.
Investigate the shape. Windmill palm seeds have a rounded heart shape that makes them resemble tiny beans.