Soliva sessilis habit1 : 無料・フリー素材/写真
Soliva sessilis habit1 / Macleay Grass Man
ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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説明 | Introduced, cool-season, annual, low-growing, sparsely-hairy herb, which may root at the nodes. Leaves are deeply 1-2 divided. Heads are disc-shaped, 4-10 mm wide andsolitary in the axils of the leaves. Fruits are spiny and winged. Flowering is mostly in spring and early summer. A native of South America, it is a weed of overgrazed or disturbed pastures, short or sparse lawns and roadsides in full sun. An indicator of overgrazing and poor ground cover. More a problem of lawns and roadsides, where the spiny fruit can be a nuisance. Control is best achieved by maintaining a healthy vigorous pasture. If herbicides are used, application should be between in late autumn and winter, before fruiting has commenced. |
撮影日 | 2008-09-09 15:04:50 |
撮影者 | Macleay Grass Man , Dungog, Australia |
タグ | |
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カメラ | Canon PowerShot A650 IS , Canon |
露出 | 0.017 sec (1/60) |
開放F値 | f/2.8 |
焦点距離 | 13745.70455 dpi |