This member of the Agavaceae* family was given this name by Charles Lemaire in 1859. It is found in Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and parts of Mexico, growing in a well drained soil with little to some water and lots of sun. The caudex can grow to 80 centimetres in diameter, the entire plant to six metres in height. The flowers are white.
The genera name is from Yuca, the name in St. Domingo for a totally different plant. The species name from Latin 'making threads'.
The species name refers to the share size of the plants. ') Accordantly to the latest taxonomic system; APG IV 2016, Agavaceae is now part of the Asparagaceae. The top of the Tenerife plant. The flowers by Cillas; Wikipedia.org.

