Juncus parryi : 無料・フリー素材/写真
Juncus parryi / Matt Lavin
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Two species of perennial bunched rushes, Juncus drummondii and Juncus parryi, are very common along the John Muir trail especially in subalpine and alpine dry to moist meadows but also as well in the understory at lower elevations. These two bunched rushes probably coexists and seem not to be ecologically distinguished. Rather both can be found across a fairly broad elevation and moisture gradient. The main, perhaps sole, difference between them is that Juncus parryi forms a well developed leaf blade whereas Juncus drummondii forms a rudimentary or abortive leaf blade emanating from the leaf sheath. This site lies at the top of Donohue Pass just south of the Yosemite NP boundary. |
| 撮影日 | 2018-08-04 10:57:23 |
| 撮影者 | Matt Lavin , Bozeman, Montana, USA |
| タグ | |
| 撮影地 | California, United States 地図 |
| カメラ | COOLPIX S9900 , NIKON |
| 露出 | 0.002 sec (1/500) |
| 開放F値 | f/4.0 |
| 焦点距離 | 37 deg 45' 39.07" N |