File:Datura stramonium plant1 (13833986014).jpg
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[edit]DescriptionDatura stramonium plant1 (13833986014).jpg | Introduced, warm-season, annual, erect, stout herb to 1.5 m tall; emitting a strong odour when crushed. Leaves are up to 35 cm long and lobed; lobes are toothed or wavy. Flowers are trumpet shaped and 5-lobed, with 3-4 cm long fused sepals and much longer (6-8 cm) fused white to lavender petals. Fruit are erect, 2-4.5 cm long and have numerous stout spines. Seeds are black or grey, pitted and 2.5–4.5 mm long. Flowering is in summer. Probably a native of North America, it is a weed of disturbed areas (e.g. riverbanks and ploughed paddocks) and wasteland. Competes strongly with summer growing crops (especially soybean) and may act as alternative host for solanaceous crop pests and diseases. Produces toxic hallucinogenic alkaloids that can cause death of all types of stock. Not readily eaten by stock due to its strong odour and unpleasant taste, but has potential to contaminate silage, hay and seed. Control should aim to prevent seed set and can include grubbing, cultivation or pre/post emergent herbicides where appropriate. Seeds are prolific and live longer than 30 years, so control can be a long-term exercise. |
Date | |
Source | Datura stramonium plant1 |
Author | Harry Rose from South West Rocks, Australia |
Licensing
[edit]This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/13833986014. 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 | 14:32, 26 May 2015 | 1,600 × 1,200 (695 KB) | 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 | 5/143 sec (0.034965034965035) |
F-number | f/4 |
ISO speed rating | 50 |
Date and time of data generation | 05:58, 24 May 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 | 09:00, 14 April 2014 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 05:58, 24 May 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 | 70515851322cf2ad2d150c42619a5f08 |
Keywords |
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IIM version | 4 |