It is listed as threatened by the state of Florida.  Should be acquired only from properly licensed sources. Specimen plant. Slow-growing hedge or background plant. Notable for the silver-white undersides to its leaves.

According to Kew Gardens, it is from Central America and probably Cuba and Florida.   After going through the photos and labels for specimens in the SIEnet database, the only occurrences in Florida that were convincingly in natural systems (as opposed to highly disturbed areas) were on shell mounds, dunes, and similar coastal areas.  Hence, the range map provided highlights the counties along the west coast that have these. Noted as invasive  and weedy on many herbarium specimen labels.  Where not native, we should think of it as invasive.

Called pignut because pigs eat the nuts. Excellent specimen or shade tree in areas where its roots will not be disturbed.