Porcupine Grass
Hesperostipa spartea

Cool-season needlegrass with formidable foot-long awns that twist to drill their sharp seeds into the ground. A signature grass of intact prairie.
- Family
- Poaceae
- Type
- grass
- Lifespan
- perennial
- Height
- 4–4 ft
- Spacing
- 0.5–1 ft apart
- Light
- sun
- Soil moisture
- moist
- Soil pH
- acidic, neutral
- Bloom
- April, May
- Bloom colors
- yellow
- Wildlife value
- songbirds
- Landscape uses
- specimen, border, naturalizing
- Native states
- CO, IA, IL, IN, KS, MI, MN, MO, MT, ND, NE, NM, OH, OK, SD, WI, WY