Elymus smithii
- Families: Poaceae Pooideae Triticeae
- English name: Western wheatgrass
- Plant ID : 20164
- Author : (Per Axel Rydberg (1860-1931)) Frank Walton Gould (1913-1981)
- Zone : California
- Biological type : grass
- Adult size (h x w) : 1,64f x 1,64f
- Sun exposure : part sun
- Evergreen : evergreen
- Growth : fast
- Hardiness : 10,4°F
- Leaf color : green gray
- Flower color : dark green
- Formerly of wild origin : no
- Native : no
- In danger : no
- Edible : no
- Precipitation : > 900mm
- FrostResistance >-5°C : yes
- FrostResistance >-8°C : yes
- FrostResistance >-12°C : yes
- Clay soil : very much
- Sandy soil : very much
- Limestone soil : a little
