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UltravioletPhotography

Aegopodium podagraria [Bishop's Weed]


Andrea B.

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Blum, A.G. (2017) Aegopodium podagraria L. (Apiaceae) Bishop's Goutweed. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...um-in-progress/

 

Synonyms:

  • Aegopodium angelicifolium Salisb.
  • Aegopodium podagraria var. variegata Bailey
  • Aegopodium simplex Lavy
  • Aegopodium ternatum Gilib. nom. inval.
  • Aegopodium tribracteolatum Schmalh.
  • Apium biternatum Stokes
  • Apium podagraria (L.) Caruel
  • Carum podagraria (L.) Roth

Other Common Names:

  • Goutweed
  • Ground Elder

Comment:

Given its classic umbellifer structure, at first glance this rampant weed growing in the area around Shore Cottage in Maine might be mistaken for its cousin Queen's Anne Lace. However, details of the stem, the leaves, the individual florets and the growth habit quickly reveal the pesky A. podagraria. Like the other Apiaceae presented in this section, the flower does not have much drama in its UV pattern. But the subtle details are worth noting - tiny conical cells giving the petals a bit of iridescent sheen, narrow bright edging around the curled petals. This particular specimen also sports an anomalous false blue petal on one of the hundreds of florets.

 

Reference:

1. New England Wild Flower Society (acc 24 Oct 2017) Aegopodium podagraria L. Bishop's Goutweed.

https://gobotany.new...ium/podagraria/

 

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

Unless otherwise noted.

 

Visible Light [f/8 for 1/400" @ ISO-560 with Nikon D810 & Micro-Nikkor 60/2.8 AFS in Sunlight]

aegopodiumPodagraria_20160708kinfolkLaneSwhME_10780pnpn.jpg

 

Visible Light [f/8 for 1/400" @ ISO-1100 with Nikon D810 & Micro-Nikkor 60/2.8 AFS in Sunlight]

Stem in upper left shows characteristic leaf stipule.

aegopodiumPodagraria_20160708kinfolkLaneSwhME_10778pn.jpg

 

Visible Light [f/11 for 2.5" @ ISO-100 with Onboard Flash and Baader UVIR-Cut Filter]

aegopodiumPodagraria_visFlash_20140709shoreCottageSwhME_20270pn.jpg

 

 

Ultraviolet Light [f/11 for 25" @ ISO-400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

A long exposure was made to permit mutiple flashes for better illumination.

aegopodiumPodagraria_uvBaadSB14_20140709shoreCottageSwhME_20315pn.jpg

 

Ultraviolet Light [f/11 for 20" @ ISO400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

An unresized crop of a single floret showing petal texture.

aegopodiumPodagraria_uvBaadSB14_20140709shoreCottageSwhME_20299pf.jpg

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