Elymus virginicus - Virginia wildrye : 無料・フリー素材/写真
Elymus virginicus - Virginia wildrye / 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 | More common in lower elevations of Montana, this is the only known occurrence of this grass in Gallatin County. Virginia wildrye is very similar to Elymus glaucus. However, Virginia wildrye occurs in disturbed areas of low elevations (such as this trail side population occuring in the town of Bozeman and coexisting with Solanum dulcamara and other weedy species) and has glumes with basal portions that are widely diverging, lighter in color, and boney-tectured. Blue wildrye (Elymus glaucus) occurs in montane meadows and grassy understory and has glumes with bases that are not divergent and green like the rest of the distal portion of the glumes. The leaves are also sufficiently broad such that they tear longitudinally over the full length.This could be Elymus curvatus because of the lemma awns that are less than 5 mm long. However, the broad lax leaf blades of the plants in this population are more diagnostic of Elymus virginicus. |
| 撮影日 | 2015-08-30 13:14:02 |
| 撮影者 | Matt Lavin , Bozeman, Montana, USA |
| タグ | |
| 撮影地 | Bozeman, Montana, United States 地図 |
| カメラ | COOLPIX AW110 , NIKON |
| 露出 | 0.001 sec (1/800) |
| 開放F値 | f/3.9 |
| 焦点距離 | 45 deg 38' 51.47" N |