Olneya tesota - desert ironwood : 無料・フリー素材/写真
Olneya tesota - desert ironwood / 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 | Olneya tesota as a native tree in Tohono Chul Park, north Tucson, Pima County, Arizona. The bark on the main stems of older trees becomes furrowed or shredded and eventually loses the stipular spines. The spiny stipules combined with leaves that bear usually an odd number of obovate leaflets and a rachis terminating in a spiny hairpoint are characteristic of Olneya. The flowers with whitish purplish petals are produced on short rachises that are congested into panicles at branch ends. These panicles are axillary as they do not terminate branch or stem growth. The triangular calyx lobes and hairy surfaces of the petals (back sides of standard and wings) are characteristic of desert ironwood. Although native to the Sonoran Desert, Olneya is commonly cultivated as an ornamental. |
| 撮影日 | 2010-05-22 10:59:38 |
| 撮影者 | Matt Lavin , Bozeman, Montana, USA |
| タグ | |
| 撮影地 | Oracle Place Shopping Center, Arizona, United States 地図 |
| カメラ | COOLPIX S8000 , NIKON |
| 露出 | 0.002 sec (1/500) |
| 開放F値 | f/3.5 |
| 焦点距離 | "Tohono Chul Park" "pea family" Fabaceae legume "Olneya tesota" "desert ironwood" tree "Sonoran Desert" "dry site" wash ornamental purple bark |