File:Persicaria hydropiper flowerhead1 (17005647368) (cropped).jpg
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![File:Persicaria hydropiper flowerhead1 (17005647368) (cropped).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Persicaria_hydropiper_flowerhead1_%2817005647368%29_%28cropped%29.jpg/800px-Persicaria_hydropiper_flowerhead1_%2817005647368%29_%28cropped%29.jpg?20180209135712)
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[edit]DescriptionPersicaria hydropiper flowerhead1 (17005647368) (cropped).jpg | Native, warm season, perennial herb with stems to 1.3 m tall (usually <1m). Above-ground plant parts turn red in autumn and die off. Leaves are 5-12 cm long with hairy leaf sheath margins. Flowerheads are elongate, slender and often drooping with greenish-white flowers that are 4 mm long and densely glandular. Flowers during the warmer months. Unsure if it has been introduced from the northern hemisphere, where it is widespread. A weed of damp to wet pastures. Common in damp places like drainage lines, edges of dams and periodically flooded areas especially on floodplains. Juice from plant will cause eyes and skin to smart, hence the common names of Smart Weed and Water Pepper. Seeds are not readily eaten, but if so may cause internal irritation to stock. In areas where ponded pasture is an option, shallow ponding will encourage water couch and discourage smart weed. | |||
Date | ||||
Source | Persicaria hydropiper flowerhead1 | |||
Author | Harry Rose from South West Rocks, Australia | |||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:57, 9 February 2018 | ![]() | 940 × 681 (210 KB) | Salicyna (talk | contribs) | File:Persicaria hydropiper flowerhead1 (17005647368).jpg cropped 41 % horizontally and 43 % vertically using CropTool with precise mode. |
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Camera manufacturer | NIKON |
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Camera model | E5400 |
Exposure time | 5/1,251 sec (0.0039968025579536) |
F-number | f/7.9 |
ISO speed rating | 50 |
Date and time of data generation | 10:41, 4 February 2005 |
Lens focal length | 5.8 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | E5400v1.3 |
File change date and time | 10:41, 4 February 2005 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 10:41, 4 February 2005 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Partial |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 28 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
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