File:Sonchus oleraceus plant4 (16024582749).jpg
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Captions
Summary
[edit]DescriptionSonchus oleraceus plant4 (16024582749).jpg |
Introduced yearlong-green annual, erect herb 30-100 cm tall. It exudes white latex if damaged and stems are hollow. Leaves are thin, lyrate-pinnatifid, 6-35 cm long, with irregularly toothed margins ending in soft spines and usually with acute auricles. Flowerheads are panicles, with heads (5-6 mm wide) containing yellow petal-like flowers. Fruits are wrinkled throughout and topped with a parachute of silky hairs. Flowering is throughout the year. A native of Europe, it is a weed of disturbed areas, such as roadsides, stockyards, dairy laneways and cropping. It is well adapted to a wide range of soils and environments. Highly palatable and nutritious. Only a nuisance weed of pastures in difficult to access areas, as it is readily grazed by stock where they can reach it. Can be a problem in reduced-till and stubble retention systems due to herbicide resistance. Can act as an alternative host to pest and diseases of crops. Can be controlled by grazing, chipping, cultivation and herbicides. For control, it is essential to prevent its prolific seed production. |
Date | |
Source | Sonchus oleraceus plant4 |
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@N04/16024582749. 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 | 17:35, 26 May 2015 | 1,944 × 2,592 (1.31 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 | 5/1,043 sec (0.0047938638542665) |
F-number | f/7.9 |
ISO speed rating | 50 |
Date and time of data generation | 15:04, 20 May 2008 |
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 | 15:04, 20 May 2008 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 15:04, 20 May 2008 |
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 |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |