Nassella neesiana habit3 CAN : 無料・フリー素材/写真
Nassella neesiana habit3 CAN / Macleay Grass Man
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Introduced, cool-season, perennial, tufted grass to 80 cm tall. Stem nodes are covered in short hairs. Leaves are to 5 mm wide, with a strongly ribbed and hairy upper surface. Flowerheads are contracted to loosely open panicles to 40 cm long. Spikelets are 1-flowered and have 2 purplish glumes. Lemmas (6-10 mm long) are hairy in the lower half and have a ring of tissue (corona) at the base of the 4-9 cm long, bent and twisted awn. Spikelets are also formed at the base of the plant and at nodes along the flowering stems. Flowers in spring and early summer. A native of South America, it is found on roadsides, in native and sown pastures, and is one of the main lawn grasses in Canberra. Occurs on most soil types, but prefers more fertile soils. A Weed of National Significance, it is highly invasive and produces large persistent seed banks. Its seeds injure stock and downgrade wool, skins and hides. A palatable and reasonable quality feed in winter, but is low quality when flowering. Stocking rates can be reduced by up to 50% during summer. Managed with a combination of methods: fodder and stock hygiene, grazing management, physical removal, pasture sowing and registered herbicides. |
| 撮影日 | 2014-11-14 09:24:48 |
| 撮影者 | Macleay Grass Man , Dungog, Australia |
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| カメラ | Canon PowerShot A650 IS , Canon |
| 露出 | 0.008 sec (1/125) |
| 開放F値 | f/8.0 |
| 焦点距離 | 13745.70455 dpi |