File:Rumex brownii plant9 - Flickr - Macleay Grass Man.jpg
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[edit]DescriptionRumex brownii plant9 - Flickr - Macleay Grass Man.jpg | Native, warm-season, perennial, rosette-forming herb when young, later becoming erect, branched and 50-80 cm tall. Leaves are paddle-shaped and up to 12 cm long, often with wavy margins. Flowers are very small and greenish red, occurring in distinctly separate whorls along the spikes. Small triangular fruits have hooked teeth, which allow them to cling to clothes and fur. Flowering is from spring to summer. Found in lawns, pastures and roadsides in full sun or partial shade, but is not restricted to wet areas as the name suggests. Native biodiversity. It may cause oxalate poisoning, but this usually only occurs when starving animals are grazing high densities of the plant. Poisoning is rarely a problem, as plants are usually scattered and large quantities need to be eaten to cause problems. Generally unpalatable, although some landholders report that it is readily eaten in summer. Becomes more abundant with overgrazing, but generally not present in large enough numbers to warrant control. Most effective control is to maintain a healthy vigorous pasture. Slashing is ineffective. Hoeing requires the taproot to be cut off at deeper than 15 cm below ground level. A number of herbicides are registered for control. |
Date | |
Source | Rumex brownii plant9 |
Author | Harry Rose from Dungog, 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://flickr.com/photos/73840284@N04/18968621612. It was reviewed on 27 November 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
27 November 2016
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:45, 27 November 2016 | 4,000 × 3,000 (7.81 MB) | Josve05a (talk | contribs) | == {{int:filedesc}} == {{Information |Description=Native, warm-season, perennial, rosette-forming herb when young, later becoming erect, branched and 50-80 cm tall. Leaves are paddle-shaped and up to 12 cm long, often with wavy margins. Flowers are ve... |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A650 IS |
Exposure time | 1/800 sec (0.00125) |
F-number | f/2.8 |
ISO speed rating | 80 |
Date and time of data generation | 09:21, 29 July 2009 |
Lens focal length | 7.4 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Picasa |
File change date and time | 13:44, 20 June 2015 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 09:21, 29 July 2009 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 9.65625 |
APEX aperture | 2.96875 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 13,745.704467354 |
Focal plane Y resolution | 13,698.630136986 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Unique image ID | 0ebb8d96ff82e01df02a38f8bd45dba5 |
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IIM version | 4 |