Even the leaf tips of species like campestis are wicked although incredibly beautiful. Very slow growing generally. Will appreciate good conditions however can survive harsh conditions and soils - and it looks it. One of the most primitive of all palms in it's form. About five species in Bolivia western tropical and southern Brazil, Paraguay, Uruguay, and Argentina.
Several species form very dense thickets in salty soils in Paraguay.
Closely related to Itaya and Crysophila. T. biflabellata is from sandy marshes and along rivers. Fruits are eaten fresh or fermented. At least down to 18 degrees fahrenheit. Trithrinax acanthacoma or spiny fiber palm and T. campestris are not common in any garden.