| Scientific Name: | Poa annua |
| Common Name: | annual bluegrass |
| Family Name: | Poaceae |
| Origin: | Central / west Asia, Europe |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Annual (true), Poales (grass-like), Weed (horticultural) |
| Mature Size: | 0.1 - 0.2m x 0.1 - 0.3m (height x width) |
| Habit: | Upright |
| Form: | Oval - vertical, Round |
| Texture: | Fine |
| Landscape Uses: | Erosion control |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Well-drained |
| Leaves: | Grass-like, Alternate, Basal, Soft flexible, Parallel venation, Glabrous, Acicular, Entire |
| Flowers: | Spikelet, Yellow, Mar-Apr-May-Jun-Jul-Aug-Sep-Oct |
| Fruit: | Grain (caryopsis), Brown, Mar-Apr-May-Jun-Aug-Sep-Oct |
| Key ID Features: | |
| Leaf tips boat-shaped, blade with puckering and wrinkling; seed head can be seen even when grass is very low growing. Field ID terms: boat tip, seed heads, brighter, apple-green, dull under. | |