File:Hydrastis canadensis (goldenseal) (Flint Ridge, Ohio, USA) 2 (26764491885).jpg
Original file (2,140 × 2,033 pixels, file size: 2.41 MB, MIME type: image/jpeg)
Captions
Summary edit
DescriptionHydrastis canadensis (goldenseal) (Flint Ridge, Ohio, USA) 2 (26764491885).jpg |
Hydrastis canadensis Linnaeus, 1759 - goldenseal. (22 April 2016) (photo by James Cheshire) Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago). The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction. The goldenseal is a herbaceous plant native to eastern North America. It has medicinal value and has been extensively collected for a couple centuries. The species is now rare and is targeted by medicinal plant collectors and poachers. Classification: Plantae, Angiospermophyta, Ranunculales, Ranunculaceae or Hydrastidaceae Locality: Flint Ridge, Franklin Township, southeastern Licking County, east-central Ohio, USA More info. at: <a href="https://en.wikipedia.org/wiki/Goldenseal" rel="nofollow">en.wikipedia.org/wiki/Goldenseal</a> |
Date | |
Source | Hydrastis canadensis (goldenseal) (Flint Ridge, Ohio, USA) 2 |
Author | James St. John |
Licensing edit
- 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 James St. John at https://flickr.com/photos/47445767@N05/26764491885 (archive). It was reviewed on 12 November 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
12 November 2019
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 04:42, 12 November 2019 | 2,140 × 2,033 (2.41 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on pl.wikipedia.org
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.
Camera manufacturer | NIKON |
---|---|
Camera model | E7900 |
Exposure time | 2/1,805 sec (0.0011080332409972) |
F-number | f/4.8 |
ISO speed rating | 50 |
Date and time of data generation | 15:50, 21 April 2016 |
Lens focal length | 7.8 mm |
Image title | |
Width | 3,072 px |
Height | 2,304 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 00:20, 2 May 2016 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 15:50, 21 April 2016 |
Meaning of each component |
|
Image compression mode | 3 |
APEX shutter speed | 9.813781 |
APEX aperture | 4.526069 |
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 |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 38 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Date metadata was last modified | 18:20, 1 May 2016 |
Unique ID of original document | E6D43FC1F867D526D07F0EB43CCBF406 |