Hesperostipa

Hesperostipa is a genus of grasses in the family Poaceae. Members of the genus are commonly known as needle-and-thread grass or needlegrass.^[2]

Hesperostipa
Hesperostipa neomexicana
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Poaceae
Subfamily:	Pooideae
Supertribe:	Stipodae
Tribe:	Stipeae
Genus:	Hesperostipa (M.K.Elias) Barkworth[1][2]
Species
See text

The Hesperostipa species, formerly called Stipa, are endemic to North America. The new name adds Classical Greek: ἕσπερος, romanized: hesperos, lit. 'western', as other Stipa species are found on the Eurasian continent (i.e., the eastern hemisphere).^[3][4]

Species

• Hesperostipa comata (Trin. & Rupr.) Barkworth – needle-and-thread grass
  • Hesperostipa comata subsp. comata
  • Hesperostipa comata subsp. intermedia (Scribn. & Tweedy) Barkworth
• Hesperostipa curtiseta (Hitchc.) Barkworth – Canadian needlegrass
• Hesperostipa neomexicana (Thurb.) Barkworth – New Mexico needlegrass
• Hesperostipa saxicola (Hitchc.) Valdés-Reyna & Barkworth
• Hesperostipa spartea (Trin.) Barkworth – porcupine grass^[2][5]