silk grass

1a : a needlegrass (Stipa comata)

b : a mountain rice (Oryzopsis hymenoides) with long awns

c Australia : rough bent

2 : any of several fiber plants especially of Agave or the related genus Nidularium (family Bromeliaceae)

3 : any of several commercial fibers from plants of the family Bromeliaceae: such as

a : a fine flexible lustrous strong fiber obtained from the pineapple and used for textiles

b : a similar fiber from a karatas (Karatas plumieri)

Definition of silk grass