File:Russian comfrey (Symphytum x uplandicum) - geograph.org.uk - 828698.jpg
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DescriptionRussian comfrey (Symphytum x uplandicum) - geograph.org.uk - 828698.jpg |
English: Russian comfrey (Symphytum x uplandicum) Russian comfrey is native to Europe; it grows in damp, grassy areas and is a common plant throughout Great Britain. It was introduced in the 1870s by a Quaker smallholder, Henry Doubleday, who had a small factory making gum for stamps, at a time when gum Arabic was in short supply. Looking for potential new sources of gum he sent to Russia for some of their indigenous comfrey plants. Incidentally, the plants he received were natural hybrids and of no use for gum production but comfrey has long been known by herbalists and organic gardeners. When Lawrence D. Hills, founder and president of the HDRA, started his work promoting organic gardening, he took a special personal interest in comfrey and conducted experiments in order to categorise the different forms found in Britain. |
Date | |
Source | From geograph.org.uk |
Author | Evelyn Simak |
Attribution (required by the license) InfoField | Evelyn Simak / Russian comfrey (Symphytum x uplandicum) / |
InfoField | Evelyn Simak / Russian comfrey (Symphytum x uplandicum) |
Camera location | 52° 49′ 22″ N, 1° 05′ 11″ E | View this and other nearby images on: OpenStreetMap | 52.822730; 1.086300 |
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Object location | 52° 49′ 22″ N, 1° 05′ 10″ E | View this and other nearby images on: OpenStreetMap | 52.822730; 1.086100 |
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Licensing[edit]
This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Evelyn Simak and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Evelyn Simak
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:46, 20 February 2011 | 480 × 640 (205 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Russian comfrey (Symphytum x uplandicum) Russian comfrey is native to Europe; it grows in damp, grassy areas and is a common plant throughout Great Britain. It was introduced in the 1870s by a Quake |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot S3 IS |
Exposure time | 1/125 sec (0.008) |
F-number | f/6.3 |
Date and time of data generation | 13:04, 2 June 2008 |
Lens focal length | 6 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS Windows |
File change date and time | 21:34, 2 June 2008 |
Y and C positioning | Centered |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Exif version | 2.2 |
Date and time of digitizing | 13:04, 2 June 2008 |
Image compression mode | 3 |
APEX shutter speed | 6.96875 |
APEX aperture | 5.3125 |
Maximum land aperture | 2.875 APEX (f/2.71) |
Metering mode | Spot |
Flash | Flash did not fire, compulsory flash suppression, red-eye reduction mode |
Color space | sRGB |
Focal plane X resolution | 2,840.2366863905 |
Focal plane Y resolution | 2,844.4444444444 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |