Oxalis tetraphylla (Four-leaved Pink-sorrel) flowers [UV]

Oxalis tetraphylla (Four-leaved Pink-sorrel) flowers [UV]

Description

Title:
Oxalis tetraphylla (Four-leaved Pink-sorrel) flowers [UV]
Caption / Description:

Flowers of Oxalis tetraphylla (Four-leaved Pink-sorrel) photographed in ultraviolet. In comparison to the flower's appearance in visible light, the centres of the flowers appear much darker in UV. The veining of the petals is still visible in UV light.

These ultraviolet markings are often referred to as 'Nectar guides'. They are (probably) used by bees and other insects, which can see in ultraviolet, to help find the centre of the flower where the nectar and pollen are located. In turn this helps the flower, which relies on visiting insects for pollination.

Tags / Keywords:
  • Biota
  • Life
  • Vitae
  • Eukaryota
  • Plantae
  • Plants
  • Magnoliophyta
  • Flowering Plants
  • Angiosperms
  • Magnoliopsida
  • Dicotyledons
  • Ultraviolet
  • UV Photography
  • Oxalidales
  • Oxalidaceae
  • Wood Sorrel family
  • Oxalis
  • Wood Sorrels
  • Oxalis tetraphylla
  • Four-leaved Pink-sorrel
  • Oxalis deppei

Admin

Date Original Photo Taken:
Original File Name:
_DIR0005a.psd
Event:
Rating:
☆
Date this image added/last updated on website:
Original File Dimensions:
4256px x 2848px
File Type:
JPEG
Color Mode:
Original Image Color Profile:
Adobe RGB (1998)

Location

Location Created:
Sublocation:
City:
Market Harborough
Province/State:
Leicestershire
Country:
United Kingdom
World Region:
Europe
Geo-location:

Rights

Copyright Status:
Copyrighted
Licensing Status:
Rights Managed
Available for Editorial Use:
Yes
Available for Commercial Use:
Yes
Copyright Notice:
© 2013 Dave Kennard

Camera Data

Date Digital Resource was created:
Shutter speed:
1⁄160 s
Aperture:
f/8
Camera Model:
Fujifilm IS Pro
ISO:
640
Exposure Compensation:
0
Focal Length:
80mm
Focal Length (35mm equiv.):
126mm
Metering Mode:
Center-weighted average
Flash:
Off, Did not fire
Exposure Mode:
Manual
White Balance:
Auto
Light Source:
Unknown
Exposure Program:
Manual

Additional shooting metadata

Lens:
Nikon EL-Nikkor 80mm F5.6
Filters used:
  • Baader U
Additional Optics used:
  • Kenko DG Extension Tubes 20mm
  • 17mm-31mm M42 Focusing helicoid
Setup:
Camera mounted on Markins ball head on Superclamp attached to bottom of tripod leg
2x full spectrum modified Vivitar 283 flashes for lighting

Post Processing

Image Modified:
Software used:
  • Adobe Camera RAW
  • Adobe Photoshop CS5
Post Processing:

Colours modified in PS CS5