Palm cotton refers to the remnant threads of foliage that resemble cotton hanging from between the frond segments of a specific type of palm tree native to Mexico. This tall-growing palm, which can reach heights of 15-20 meters, is characterized by its large, fan-like fronds and these distinctive "cotton-like" threads.
While aesthetically interesting, it is important to note that this palm is not self-cleaning. It retains old fronds on its trunk, which require manual removal. This characteristic can be a significant consideration for landscaping and maintenance.