Rudbeckia hirta 'Prairie Sun' [Gloriosa Daisy]

[Andrea B.]

Blum, A.G. (2013) Rudbeckia hirta L. 'Prairie Sun' (Asteraceae) Gloriosa Daisy. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...gloriosa-daisy/

 

Middletown, New Jersey, USA

28 July 2013

Cultivar in home garden

 

Comment:

This cultivar shows the typical Rudbeckia UV-dark bullseye. Its ray tips are brighter than most other Rudbeckias. Darker ray venation is exhibited in UV but not in the Visible frame.

 

Reference:

1. Missouri Botanical Garden (2013) Rudbeckia hirta 'Prairie Sun' http://www.missourib...rairie-sun.aspx

 

Equipment [Nikon D600-broadband + Nikon 105mm f/4.5 UV-Nikkor]

 

Visible Light [f/16 for 1.3" @ ISO 400 with onboard Flash and Baader UVIR-Block Filter]

 

Ultraviolet Light [f/22 for 20" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]