File:Heliotropium amplexicaule leaf4 (14444928097).jpg
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[edit]DescriptionHeliotropium amplexicaule leaf4 (14444928097).jpg | Introduced, warm season, perennial, prostrate herb to 60 cm tall. Leaves and stems are hairy with glandular and non-glandular hairs. Leaves are alternate, lanceolate, deeply veined and stem clasping. Blue to mauve tubular flowers (with yellow stamens and throat) arranged caterpillar-like in 2 rows on one side of the flowering stem (scirpoid cyme). Flowers most of the year, but not in winter in southern areas. Grows on a wide range of soil types. Predominantly in areas that receive at least 50% of average annual rainfall in summer. It is mostly a problem of run down pasture and disturbed areas such as cropping paddocks, roadsides and waste land. Regenerates from seed and vegetatively from pieces of plant and roots. It is spread by water, fur of animals and in the gut of animals. A weed which is toxic to animals, quite invasive and difficult to control. Causes chronic liver damage in cattle, sheep and horses; can be fatal. Cultivation encourages its spread by stimulating germination and regrowth of plant parts. Management requires an integrated approach including herbicides, productive pasture, grazing management and biological control. There has only been one biological control agent released in Australia, the blue heliotrope leaf-beetle. At high densities, leaf-beetles can completely defoliate blue heliotrope, with both the larvae and adults feeding on the leaves. |
Date | |
Source | Heliotropium amplexicaule leaf4 |
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@N04/14444928097. 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 | 18:41, 9 January 2020 | 1,585 × 2,257 (1.21 MB) | Salicyna (talk | contribs) | Cropped 60 % horizontally, 25 % vertically using CropTool with precise mode. | |
14:54, 26 May 2015 | 4,000 × 3,000 (3.85 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A650 IS |
Exposure time | 1/1,250 sec (0.0008) |
F-number | f/3.5 |
ISO speed rating | 80 |
Date and time of data generation | 11:17, 4 March 2014 |
Lens focal length | 7.4 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Picasa |
File change date and time | 10:02, 12 July 2014 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 11:17, 4 March 2014 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 10.28125 |
APEX aperture | 3.625 |
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 | e64a9e867d32f593b811f2b5941731bb |
Keywords |
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IIM version | 4 |