Stipa tenacissima

Many other plant waxes have also been exploited for various uses, including esparto wax, from esparto grass Stipa tenacissima, and Japan wax, from plants of the Rhus species. 

Very similar to these are fibres of Haifa (Stipa tenacissima). The two kinds may be differentiated by means of the hairs of the leaves from which the fibres are derived, these being found among the fibres. With esparto these short hairs are somewhat rounded with thin walls and wide lumen, whilst those of halfa terminate in a sharp point and have fairly thick walls and a narrow lumen. 

The Hemicelluloses of Esparto Grass (Stipa tenacissima L.). The Arabinose-rich... 

---