File:Senecio madagascariensis head1 (15957572337).jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
![File:Senecio madagascariensis head1 (15957572337).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Senecio_madagascariensis_head1_%2815957572337%29.jpg/800px-Senecio_madagascariensis_head1_%2815957572337%29.jpg?20150526173048)
Size of this preview: 800 × 532 pixels. Other resolutions: 320 × 213 pixels | 640 × 425 pixels | 1,024 × 680 pixels | 1,280 × 851 pixels | 2,560 × 1,701 pixels | 4,912 × 3,264 pixels.
Original file (4,912 × 3,264 pixels, file size: 2.84 MB, MIME type: image/jpeg)
File information
Structured data
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]DescriptionSenecio madagascariensis head1 (15957572337).jpg | Introduced, yearlong-green, annual or biennial, erect herb to 70 cm tall. Leaves are variable, mostly 2-8 cm long and lanceolate or elliptical, but never deeply dissected. Fllowerheads are loose clusters of yellow heads, each to 2 cm diameter. There are usually 13 (12-15) outer (petal-like) ray flowers and one row of 20-21 bracts. Flowering is year-round, but mostly from autumn to spring. A native of southern Africa, it is a common weed of pastures and disturbed sites. Most prolific on lighter-textured, acid, well-drained, low to medium fertility soils. Seeds are spread long distances by wind. More abundant where pastures are overgrazed or disturbed. Contains toxins that cause irreversible liver damage. Poisoning is usually chronic, leading to ill-thrift and eventually death if stock continue to graze it. Horses and cattle (especially young stock) are most susceptible, sheep less so, and goats the least. Not very palatable for cattle or horses, but goats and sheep will seek it out. More likely to be eaten if stock graze after slashing, as they cannot discriminate between fireweed and pasture. Best controlled using a number of methods, including strong pastures, grazing and herbicides. A dense, well-managed pasture can limit fireweed establishment, plant size and seed production. Hand pulling and bagging is very effective for controlling small/light infestations. Herbicides are most effective if used on smaller plants, preferably before flowering. |
Date | |
Source | Senecio madagascariensis head1 |
Author | Harry Rose from South West Rocks, Australia |
Camera location | 30° 53′ 09.8″ S, 153° 01′ 00.47″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
---|
Licensing
[edit]![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
![]() |
This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/15957572337. 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
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:30, 26 May 2015 | ![]() | 4,912 × 3,264 (2.84 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
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.
Image title | SONY DSC |
---|---|
Camera manufacturer | SONY |
Camera model | SLT-A55V |
Exposure time | 1/160 sec (0.00625) |
F-number | f/20 |
ISO speed rating | 100 |
Date and time of data generation | 13:22, 29 July 2011 |
Lens focal length | 30 mm |
Latitude | 30° 53′ 9.8″ S |
Longitude | 153° 1′ 0.47″ E |
Altitude | 14.1 meters below sea level |
Orientation | Normal |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | SLT-A55V v1.10 |
File change date and time | 13:45, 30 December 2014 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 13:22, 29 July 2011 |
Meaning of each component |
|
Image compression mode | 1 |
APEX brightness | 9.87 |
APEX exposure bias | −0.7 |
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 |
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 |
Focal length in 35 mm film | 45 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Unique image ID | 68e2e24b2e51b8cbee6911151b06c95f |
GPS time (atomic clock) | 03:21:54.892 |
Receiver status | Measurement in progress |
Measurement mode | 3-dimensional measurement |
Speed unit | Kilometers per hour |
Speed of GPS receiver | 0.5 |
Reference for direction of movement | True direction |
Direction of movement | 0 |
Geodetic survey data used | WGS-84 |
GPS date | 29 July 2011 |
GPS differential correction | 0 |
GPS tag version | 0.0.3.2 |
Keywords |
|
IIM version | 4 |