Jump to content
UltravioletPhotography

Hibiscus syriacus [Rose of Sharon]


Recommended Posts

Blum, A.G. (2018) Hibiscus syriacus L. (Malvaceae) Rose of Sharon. Flowers photographed in visible and ultraviolet light. UV-induced visible fluorescence included. http://www.ultraviol...rose-of-sharon/

Updated 01 May 2018: Added UV photo.

 

Middletown, New Jersey, USA

06 Sep 2010

Cultivar shrubs in yard

 

Synonyms:

  • Althaea frutex Mill.
  • Hibiscus rhombifolius Cav.
  • Ketmia syriaca (L.) Scop.

Other Common Names:

  • Rose Mallow

Comment: I wanted to show everyone these interesting fluorescent pollen grains. I had fogotten I had these photos and found them during my recent file re-naming effort. So interesting!

This shrub is an Asian native, often seen in India. It is a popular ornamental shrub in the US.

In UV light the flower is UV-dark with some iridescence.

 

Reference:

1. Missouri Botanical Garden (2018.03.19) Hibiscus syriacus. http://www.missourib...kempercode=c522

 

Equipment [Nikon D700-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]

 

Click to see larger versions.

 

Visible Light [f/11 for 1/6" @ ISO-800 in Sunlight with Baader UVIR-Block Filter]

hibiscusSyriacus_vis_sun_20100906wf_8495pn.jpg

 

Visible Light [f/11 for 1/25" @ ISO-800 in Sunlight with Baader UVIR-Block Filter]

Rose of Sharon has flowers with both male and female parts. But the two photos shown here are in different stages of development.

hibiscusSyriacus_vis_sun_20100906wf_8633pn.jpg

 

UV-Induced Visible Fluorescence [f/11 for 2" @ ISO-800. Nichia 365 UV-Led. UV-Planar + Baader UVIR-Block Filter. Photographed in Darkness.]

Color has not been profiled.

hibiscusSyriacus_uviVisFluor_365uvLed_20100906wf_849801pn.jpg

 

UV-Induced Visible Fluorescence [f/11 for 1.6" @ ISO-800. Nichia 365 UV-Led. UV-Planar + Baader UVIR-Block Filter. Photographed in Darkness.]

Color has not been profiled.

Focus is on the bottom center. Not much depth of field when this close.

The dark bloblets are not dust bunnies, just flower debris.

hibiscusSyriacus_uviVisFluor_365uvLed_20100906wf_8565pn.jpg

 

Unresized crop of preceding photo

Some jpg artifacts showing? But still....seeing these pointy little pollen grains is amazing to me!

hibiscusSyriacus_uviVisFluor_365uvLed_20100906wf_8565pn01.jpg

 

UV-Induced Visible Fluorescence [f/11 for 2.5" @ ISO-800. Nichia 365 UV-Led. UV-Planar + Baader UVIR-Block Filter. Photographed in Darkness.]

hibiscusSyriacus_fluorVis_365uvLed_20100906wf_8582pf101.jpg

 

Ultraviolet Light [f/11 for 1.6" @ ISO-800 with Nichia 365nm UV-LED and BaaderU UV-Pass Filter]

hibiscusSyriacus_vis_sun_20100906wf_8712pn201.jpg

Link to comment
  • 1 month later...
Andy Perrin
It looks lovely in UV, Andrea. Now where is the Rose of Andrea? You must shoot it!
Link to comment

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
×
×
  • Create New...