File:Desert bitterbrush, Purshia glandulosa in bud and early flower (front left), with Purshia tridentata in late flower and early fruit (back right) (16859906822).jpg
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Summary
[edit]DescriptionDesert bitterbrush, Purshia glandulosa in bud and early flower (front left), with Purshia tridentata in late flower and early fruit (back right) (16859906822).jpg |
desert bitterbrush, Purshia glandulosa in bud and early flower (front left), with Purshia tridentata in late flower and early fruit (back right), Carson Range, elevation 1575 m (5165 ft). This is a recently discovered northward range extension for Purshia glandulosa, which otherwise appears limited to the Mojave Desert and adjacent Great Basin transition zone, southward to Baja California. It was only noticed here after seeing it come into flower about 2 weeks later than the Purshia tridentata with which it grows. The flowering times are apparently different enough at this location to prevent gene flow, and no hybrids could be found after extensive searches. The population covers several acres and seems quite healthy. The habitat is shallow sandy and rocky granitic soil on mostly southward exposures, fairly typical in the northern portion of its known range. Based on ongoing observations, the higher-elevation reports of Purshia glandulosa (Intermountain Flora etc.) appear instead to be a prostrate and more glandular (and unnamed) variant of Purshia tridentata, with which it shares the flatter primary leaves with only narrowly inrolled margins, and prominent white pubescence on at least the undersides, and with which it clearly intergrades. Purshia glandulosa has thicker and narrower leaf lobes almost completely inrolled, is consistently an upright shrub, and rarely if ever appears to intergrade with other Purshia species. |
Date | |
Source | desert bitterbrush, Purshia glandulosa in bud and early flower (front left), with Purshia tridentata in late flower and early fruit (back right) |
Author | Jim Morefield from Nevada, USA |
Camera location | 39° 05′ 39.19″ N, 119° 48′ 17.6″ W | View this and other nearby images on: OpenStreetMap | 39.094219; -119.804889 |
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This image was originally posted to Flickr by Jim Morefield at https://flickr.com/photos/127605180@N04/16859906822 (archive). It was reviewed on 29 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
29 December 2019
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:41, 29 December 2019 | 3,648 × 2,736 (6.61 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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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 | Purshia glandulosa in bud and flower with Purshia tridentata in late flower |
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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 | 1/160 sec (0.00625) |
F-number | f/16 |
ISO speed rating | 200 |
Date and time of data generation | 16:04, 30 April 2014 |
Lens focal length | 26 mm |
User comments | Purshia glandulosa in bud and flower with Purshia tridentata in late flower |
Latitude | 39° 5′ 39.19″ N |
Longitude | 119° 48′ 17.6″ W |
Altitude | 1,574.292 meters above sea level |
Headline | Purshia glandulosa in bud and flower with Purshia tridentata in late flower |
City shown | Carson City |
Orientation | Normal |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | RoboGEO v6.3.2 |
File change date and time | 16:04, 30 April 2014 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 16:04, 30 April 2014 |
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) | 23:04 |
Geodetic survey data used | WGS 1984 |
GPS date | 30 April 2014 |
GPS tag version | 0.0.3.2 |
IIM version | 4 |
Province or state shown | Nevada |
Code for country shown | US |
Country shown | United States |