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UltravioletPhotography

Solidago juncea [Early Goldenrod]


Andrea B.

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Blum, A.G. (2017) Solidago juncea Ait.1789 (Asteraceae) Early Goldenrod. Flowers photographed in ultraviolet and visible light. http://www.ultravioletphotography.com/content/index.php/topic/2090-solidago-juncea-early-goldenrod/#entry14779

 

Shore Cottage, Southwest Harbor, Maine, USA

03 August 2016

Wildflower

 

Synonyms:

  • Solidago juncea var. neobohemica Fern.
  • Solidago juncea var. ramosa Porter & Britt.

Comment:

These tiny individual Goldenrod composites have disk flowers which are more UV-dark than the outer UV-bright rays. The rays exhibit darker veining in both the visible and UV photographs. The composite flowers grow only on one side of the stems. The tall, plumy plant does bloom earlier than the other Goldenrods on Mount Desert Island. Hairless stems and unsheathed leaves help identify this species. Bees, wasps, beetles, flies and butterflies all love this Goldenrod.

 

Reference:

1. New England Wild Flower Society (2016) Solidago juncea. Early Goldenrod. https://gobotany.new...olidago/juncea/

 

 

Visible Light [f/8 for 1/400" @ ISO-180 in Sunlight]

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

solidagoJunceaPlant_20160730shoreCottageME_11483pn.jpg

 

 

Visible Light [f/8 for 1/400" @ ISO-100 in Sunlight]

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

Stem detail

solidagoJunceaStem_20160730shoreCottageME_11480pn.jpg

 

 

Visible Light [f/16 for 1/25" @ ISO-200 with Onboard Flash and Baader UVIR-Block Filter]

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

solidagoJuncea_visFlash_20160803shoreCottageSwhME_48860pn01.jpg

 

 

Ultraviolet Light [f/11 for 1/1.6" @ ISO-400 with SB-14 UV-modified Flash and BaaderU UV-Pass Filter]

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

solidagoJuncea_uvBaadSB14_20160803shoreCottageSwhME_48882pn01.jpg

 

 

Leaf Details

Visible Light [f/9 for 1/250" @ ISO-1270 with Onboard Flash]

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

Leaf top

solidagoJunceaLeaf_20160730shoreCottageME_11608pn.jpg

Leaf bottom

solidagoJunceaLeafAbaxial_visFlash_20160730shoreCottageSwhME_11610pn01.jpg

Fringe along edge of leaf

solidagoJunceaLeaf_20160730shoreCottageME_11603pn01.jpg

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