File:Eastern Joshua tree, Yucca jaegeriana (29975293436).jpg
Original file (3,648 × 2,736 pixels, file size: 5.98 MB, MIME type: image/jpeg)
Captions
Summary[edit]
DescriptionEastern Joshua tree, Yucca jaegeriana (29975293436).jpg |
eastern Joshua tree, Yucca jaegeriana, Nevada, Mormon Mesa, Virgin Valley drainage, elevation 620 m (2035 ft). Also visible are big galleta (Hilaria rigida), creosote bush (Larrea tridentata), bursage (Ambrosia dumosa), etc. Recently it has been recognized that there are two different species of Joshua tree in the Mojave Desert of the southwestern United States. The two species are distinguished mainly by flower shape, and are pollinated by different species of co-evolved yucca moths. The eastern Joshua tree shown here is limited to northwestern Arizona, southwestern Utah, southeastern Nevada, and the far eastern Mojave Desert portion of California. The more iconic western Joshua tree (Yucca brevifolia) is limited to southwestern Nevada and the western Mojave Desert in California, including Joshua Tree National Park. There is one area of overlap between the two species in Tikaboo Valley of south-central Nevada, northwest of the location shown here. Besides the flower differences, eastern Joshua tree tends to have shorter stems branched closer to the plant base (giving it a more shrubby appearance), shorter leaves not exceeding about 20 cm, and flowers longer than wide with segments curved outward at the tips. Western Joshua tree tends to be taller with a distinct trunk branching higher above the ground, with leaves up to 35 cm long, and flowers about as long as wide with segments curved inward. The leaf length, stem height, and branching characteristics are somewhat variable in both species and can't be used for definitive identification. For more information see Lenz, L.W. 2007. Reassessment of Yucca brevifolia and recognition of Y. jaegeriana as a distinct species. Aliso 24: 97-104. <a href="http://scholarship.claremont.edu/aliso/vol24/iss1/7" rel="noreferrer nofollow">scholarship.claremont.edu/aliso/vol24/iss1/7</a> |
Date | |
Source | eastern Joshua tree, Yucca jaegeriana |
Author | Jim Morefield from Nevada, USA |
Camera location | 36° 45′ 14.29″ N, 114° 24′ 43.92″ W | View this and other nearby images on: OpenStreetMap | 36.753969; -114.412201 |
---|
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.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This image was originally posted to Flickr by Jim Morefield at https://flickr.com/photos/127605180@N04/29975293436. It was reviewed on 4 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
4 December 2020
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:23, 4 December 2020 | 3,648 × 2,736 (5.98 MB) | Eyes Roger (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 | eastern Joshua tree, Yucca jaegeriana, Mormon Mesa, Virgin Valley drainage, elevation 620 m (2035 ft) |
---|---|
Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | E-510 |
Author | Camera owner, James D. Morefield; Photographer, James D. Morefield; Image creator, James D. Morefield |
Exposure time | 1/800 sec (0.00125) |
F-number | f/6.3 |
ISO speed rating | 200 |
Date and time of data generation | 16:24, 13 March 2016 |
Lens focal length | 36 mm |
User comments | eastern Joshua tree, Yucca jaegeriana, Mormon Mesa, Virgin Valley drainage, elevation 620 m (2035 ft) |
Latitude | 36° 45′ 14.29″ N |
Longitude | 114° 24′ 43.92″ W |
Altitude | 620.268 meters above sea level |
Headline | eastern Joshua tree, Yucca jaegeriana, Mormon Mesa, Virgin Valley drainage, elevation 620 m (2035 ft) |
City shown | Clark County |
Width | 3,648 px |
Height | 2,736 px |
Orientation | Normal |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | RoboGEO v6.3.2 |
File change date and time | 16:24, 13 March 2016 |
Subsampling ratio of Y to C | 2 |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 16:24, 13 March 2016 |
Meaning of each component |
|
APEX exposure bias | 0 |
Maximum land aperture | 3.61328125 APEX (f/3.5) |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
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 | Standard |
Scene control | Low gain up |
Contrast | Soft |
Saturation | Normal |
Sharpness | Soft |
GPS time (atomic clock) | 23:24 |
Reference for direction of image | True direction |
Direction of image | 0 |
Geodetic survey data used | WGS 1984 |
GPS date | 13 March 2016 |
GPS tag version | 0.0.3.2 |
IIM version | 4 |
Province or state shown | Nevada |
Code for country shown | US |
Country shown | United States |