File:Marrubium vulgare stem1 Jenene Kidston (14637260464).jpg
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editDescriptionMarrubium vulgare stem1 Jenene Kidston (14637260464).jpg | Introduced, yearlong green, perennial, aromatic herb to 60 cm tall and covered in dense white hairs. Stems are erect, square in cross-section & much branched near the base. Leaves are oppositely arranged and crinkled. White zygomorphic flowers occur in clusters of 6-12 in the leaf axils; they form dry brown burrs with hooked spines. Germinates whenever there is sufficient rain; flowers throughout the year. A weed in a wide range of habitats where competition has been reduced by disturbance, overgrazing or previous grazing by sheep. Rarely invades undisturbed native vegetation and does not establish in cultivated paddocks. Prefers alkaline soils with low ground cover and rainfall of more than 200 mm. Seed spread by burrs attaching to animals and equipment, by water or in dung. Invasive, producing large numbers of long-lived seeds; causes vegetable fault in wool. Bitter tasting; unpalatable to stock; taints meat. Control options include hand-pulling, biological control agents, herbicides, burning, slashing, cultivation and sowing of competitive species. |
Date | |
Source | Marrubium vulgare stem1_Jenene Kidston |
Author | Harry Rose from South West Rocks, Australia |
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/14637260464. 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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current | 15:05, 26 May 2015 | ![]() | 2,848 × 2,136 (1.61 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Camera manufacturer | FUJIFILM |
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Camera model | FinePix S7000 |
Exposure time | 1/800 sec (0.00125) |
F-number | f/5.6 |
ISO speed rating | 200 |
Date and time of data generation | 23:45, 5 November 2006 |
Lens focal length | 7.8 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Digital Camera FinePix S7000 Ver1.00 |
File change date and time | 11:07, 13 July 2014 |
Y and C positioning | Co-sited |
Exposure Program | Shutter priority |
Exif version | 2.2 |
Date and time of digitizing | 23:45, 5 November 2006 |
Meaning of each component |
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Image compression mode | 2 |
APEX shutter speed | 9.7 |
APEX aperture | 5 |
APEX brightness | 8.77 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 4,264 |
Focal plane Y resolution | 4,264 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Scene capture type | Standard |
Sharpness | Normal |
Subject distance range | Macro |
Unique image ID | 834850d5570bb3a24d88ceacadb24114 |
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IIM version | 4 |