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UltravioletPhotography

Sisymbrium officinale [Hedge Mustard]: B CR MA SA F-FY


Andrea B.

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Blum, A.G. (2016) Sisymbrium officinale (L.) Scop. (Brassicaceae) Hedge Mustard. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...-hedge-mustard/

 

Shore Cottage, Southwest Harbor, Maine, USA

03 August 2016

Wildflower

 

Synonyms:

  • Common Hedge-mustard
  • Erysimum officinale L.
  • Sisymbrium officinale var. leiocarpum DC.

Comment:

Here's one where I didn't get the focus quite right on the tiny little flowers. It will have to stand until I can re-photograph it.

We are not surprised to see these tiny Brassica flowers exhibit the typical UV-black central parts and looped veining on the petals which we expect from most Brassicaceae under UV light.

 

Reference:

1. New England Wild Flower Society (2016) Sisymbrium officinale. Common Hedge-mustard. https://gobotany.new...ium/officinale/

 

 

Visible Light [f/16 for 1/100" @ ISO-200 with Onboard Flash and Baader UVIR-Block Filter]

Nikon D600-broadband + 105mm f/4.5 UV-Nikkor. Worst background ever.

sisymbriumOfficinale_visFlash_20160803shoreCottageSwhME_48891pn01.jpg

 

Ultraviolet Light [f/16 for 15" @ ISO-200 with SB-14 UV-modified Flash and BaaderU UV-Pass Filter]

Nikon D600-broadband + 105mm f/4.5 UV-Nikkor.

sisymbriumOfficinale_uvBaadSB14_20160803shoreCottageSwhME_48909pn01.jpg

 

UV+Blue+Green [f/11 for 10" @ ISO-200 in Sunlight with UG5(1.5mm) + S8612(1.75mm)]

Nikon D600-broadband + 105mm f/4.5 UV-Nikkor.

sisymbriumOfficinale_ug5+s8612_20160803shoreCottageSwhME_48916pn0101.jpg

 

 

Plant Details

Visible Light [f/8 for 1/400" @ ISO-160 in Sunlight]

Nikon D810 + 60mm f/2.8G Micro-Nikkor

S. officinale has a weedy, lanky growth habit.

sisymbriumOfficinale_20160803shoreCottageSwhME_11631pn.jpg

 

Visible Light [f/8 for 1/400" @ ISO-72 in Sunlight]

Nikon D810 + 60mm f/2.8G Micro-Nikkor

sisymbriumOfficinale_20160803shoreCottageSwhME_11629.jpg

 

Visible Light [f/8 for 1/400" @ ISO-140 in Sunlight]

Nikon D810 + 60mm f/2.8G Micro-Nikkor

Appressed siliques are one identifying feature of S. officinale.

sisymbriumOfficinale_20160803shoreCottageSwhME_11635pn.jpg

 

Visible Light [f/8 for 1/400" @ ISO-63 in Sunlight

Nikon D810 + 60mm f/2.8G Micro-Nikkor

The flowers are tiny. This cluster measures only 9mm in diameter.

sisymbriumOfficinale_20160803shoreCottageSwhME_11619pn.jpg

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