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Richardson's needlegrass

Scientific Name: Achnatherum richardsonii

Family: Poaceae

Category: Monocot

Growth: Graminoid

Duration: Perennial

Other Names:

       

Richardson's Needlegrass (Achnatherum richardsonii)

Achnatherum richardsonii, commonly known as Richardson's needlegrass, is a perennial graminoid belonging to the grass family. It's also referred to as spreading needlegrass and Canada mountain ricegrass.

Considerations for Pets

  • The plant is commonly called needlegrass, referring to a sharp, pointed structure.

Considerations for Children

  • The plant is commonly called needlegrass, referring to a sharp, pointed structure.

Taxonomy and Nomenclature

  • Scientific Name: Achnatherum richardsonii (Link) Barkworth
  • Synonym: Stipa richardsonii
  • Genus: Achnatherum
  • Species: richardsonii
  • Family: Gramineae (Grass family)

Distribution and Habitat

  • Richardson's needlegrass is distributed across a wide geographical area.
  • It is found in British Columbia, Alberta, Saskatchewan, and parts of the Yukon Territory.
  • It also grows in Idaho and Nevada.
  • Observed in the Lamar Valley area of Yellowstone.

Morphological Characteristics

  • Richardson's needlegrass can grow up to 80 cm tall.
  • It has delicate, drooping seedheads.