Cardamine hirsuta [Hairy Bittercress]

[Andrea B.]

Blum, A.G. (2013) Cardamine hirsuta L. (Brassicaceae) Hairy Bittercress. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...ry-bittercress/

 

Middletown, New Jersey, USA

29 March 2013

Wildflower

 

Comment: This introduced, invasive weed nevertheless has very early, sprightly, pretty little white flowers arising from its basal rosette. In UV it is moderately dark with UV-black stamens.

 

Reference:

1. New England Wild Flower Society (2013) Cardamine hirsuta L. Hairy Bitter-cress. http://gobotany.newe...damine/hirsuta/

 

Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.5 UV-Planar]

 

Visible Light [f/11 for 1/60" @ ISO 100 in Sunlight with onboard Flash and Baader UVIR-Block Filter]

 

Ultraviolet Light [f/11 for 1" @ ISO 400 in Sunlight with SB-14 UV-modified Flash and Baader UV-Pass Filter]

 

Ultraviolet Light [f/8 for 1/8" @ ISO 400 in Sunlight with SB-14 UV-modified Flash and Baader UV-Pass Filter]