Sphaeropteris horridaSphaeropteris horrida is a tree fern in the family Cyatheaceae, and grows in southern Mexico and Central America. It is the largest species of tree fern in North America, growing to nearly in height with fronds up to long.DistributionSphaeropteris horrida grows in the Mexican states of Chiapas, Guerrero, Oaxaca, Puebla, and Veracruz; and in the countries of Guatemala, Belize, El Salvador, Honduras, and Nicaragua.