| Scientific Name: | Lolium perenne |
| Common Name: | perennial ryegrass |
| Family Name: | Poaceae |
| Origin: | Africa - northern, Central / west Asia, Europe |
| Hardiness Zone: | Zone 3: (-40 to -34 °C) |
| Plant Type: | Herbaceous perennial, Poales (grass-like) |
| Mature Size: | 0.4 - 0.7m x 0.3 - 0.6m (height x width) |
| Habit: | Arching |
| Form: | Vase |
| Texture: | Fine |
| Landscape Uses: | Golf green |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Well-drained |
| Leaves: | Grass-like, Alternate, Soft flexible, Parallel venation, Glabrous, Linear, Entire, Serrulate |
| Flowers: | Spikelet, Yellow, Green, May-Jun-Jul-Aug-Sep |
| Fruit: | Grain (caryopsis), Brown, Sep-Oct |
| Key ID Features: | |
| Bunching-tufted habit, no rhizomes or stolons; leaf vernation folded, blade v-shaped in cs, keeled, 2-5mm wide, heavily veined and dull above, underside smooth and very glossy, tapering to a sharp and long pointed tip, margin smooth; auricles small, rounded; ligule 0.5-1.5mm, toothed near tip; sheath smooth, glossy, and usually reddish at base; stem flattened. Field ID terms: shiny, glossy, folded, pointy-boat, ridged top. | |