File:Hypochaeris radicata flowerhead1 (14652523233).jpg
Original file (2,592 × 1,944 pixels, file size: 2.33 MB, MIME type: image/jpeg)
Captions
Summary
editDescriptionHypochaeris radicata flowerhead1 (14652523233).jpg |
Introduced, yearlong-green, perennial herb, with a solid taproot and 30-50 cm tall. Leaves form a rosette and are bluntly lobed, 5-20 cm long and covered with bristly hairs. Flowerheads have solitary heads at the tips of solid, branched stems. Heads are 5-15 mm wide, with yellow ligulate flowers. Flowering is over most of the year. A native of Europe, it is common in pastures, along roadsides and in disturbed areas. More common on low fertility, acid soils or where grazing promotes bare ground. Flat rosettes can cover a relatively large area and suppress more desirable plants. Selected by horses, but suspected (though never proven) that it can cause stringhalt in horses where it is dominant. Palatable and nutritious for cattle and sheep, but low growing habit restricts its availability. Best controlled with vigorous pastures as it is difficult and rarely economical to kill with herbicides. Strong pastures out-compete it as it is susceptible to shading and requires bare ground for germination. Fertilise to promote pastures and graze to produce shading and competition. |
Date | |
Source | Hypochaeris radicata flowerhead1 |
Author | Harry Rose from South West Rocks, Australia |
Licensing
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/14652523233. It was reviewed on 26 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
26 May 2015
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:57, 26 May 2015 | 2,592 × 1,944 (2.33 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON |
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Camera model | E5400 |
Exposure time | 10/4,029 sec (0.002482005460412) |
F-number | f/7.9 |
ISO speed rating | 50 |
Date and time of data generation | 04:59, 23 July 2006 |
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 | 14:50, 12 July 2014 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 04:59, 23 July 2006 |
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 |
Unique image ID | b6dbe5d5dad8cb1636d9d0daa668a96e |
Keywords |
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IIM version | 4 |