Erysimum cheiranthoides [Wormseed Wallflower]: Another Example

[Andrea B.]

Blum, A.G. (2017) Another Example of Erysimum cheiranthoides L. (Brassicaceae) Wormseed Wallflower. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...nother-example/

^{Updated 27 March 2017: Second set added}

 

Synonyms:

• Cheirinia cheiranthoides (L.)
  

Other Common Names:

• Treacle Mustard
  
• Wormseed Mustard
  

Comment:

The tiny petals of E. cheiranthoides show the typical UV-black patches and veining of other Brassicaceae. Unopened flowers and seed cases are UV-black and provide the bright petal tips with a nicely contrasting background.

Rørslett⁽²⁾ first posted E. cheiranthoides here on UVP. We welcome multiple examples of the same flower in order to confirm their UV-signatures.

 

Reference:

1. New England Wild Flower Society (2016) Erysimum cheiranthoides. Wormseed Wallflower. https://gobotany.new...cheiranthoides/

2. Rørslett, B. 2012. Erysimum cheiranthoides L. (Brassicaceae). Little Wallflower. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...tle-wallflower/

 

 

SET 1

Shore Cottage, Southwest Harbor, Maine, USA

03 August 2016

Wildflower

 

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

 

Visible Light [f/16 for 1/10" @ ISO-200 with Onboard Flash and Baader UVIR-Block Filter]

 

Ultraviolet Light [f/11 for 8" @ ISO-800 with SB-14 UV-modified Flash and BaaderU UV-Pass Filter]

^{A long exposure was made to permit multiple flashes for more even coverage.}

 

 

SET 2

Shore Cottage, Southwest Harbor, Maine, USA

10 July 2014

Wildflower

 

Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]

 

Visible Light [f/11 for 1.6" @ ISO-400 with Onboard Flash and Baader UVIR-Block Filter]

 

Ultraviolet Light [f/11 for 20" @ ISO-800 with SB-14 UV-modified Flash and BaaderU UV-Pass Filter]

^{A long exposure was made to permit multiple flashes for more even coverage.}

[nfoto]

These look exactly like those I photographed. Not a given fact as the species is quite variable in taxonomic terms.

[Andy Perrin]

Mustards seem much prettier in UV than in visible light. I guess in UV the spice is right.