| Silverleaf Sunflower |
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| File size | 110917 |
| Original date | 8/9/09 10:38 PM |
| Resolution | 892 x 669 |
| Flash | Flash did not fire, auto |
| Focal length | 70.0mm |
| Exposure time | 1/500s |
| Aperture | 5.6 |
| Focus Distance | |
| Metering Mode | Multi-segment |
| Camera make | SONY |
| Camera model | DSLR-A100 |
| Sensor type |
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Photo: |
Botanical name: Helianthus argophyllus Family: Asteraceae (Sunflower family)
Silverleaf Sunflower is a coarse annual herb 1.5-2 m tall. Stems are
densely white-velvety. Leaves are ovate to ovate-lanceshaped, 15-25 cm long
and nearly as broad, densely white-wooly-silky with long silky hairs. Ray
florets are 15 or more, 2.5-3.5 cm long, yellow to orange-yellow. Disk
florets are usually deep purple. Achenes are 4-6 mm long. Silverleaf
Sunflower is native to North America, cultivated as a garden plant in India.
Identification credit: Gurcharan Singh
| Photographed in Delhi. |