• Ultraviolet Photography

Eriogonum nudum [Few-flowered Naked Buckwheat]

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#1 Andrea B.

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Posted 30 June 2013 - 20:31

Blum, A.G. (2013) Eriogonum nudum Douglas ex Bentham var. pauciflorum S. Watson (Polygonaceae) Few-flowered Naked Buckwheat. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...aked-buckwheat/

Joshua Tree National Park, California, USA
Lat [N33°43'07.7"] Lon [W115°48'39.3"]
05 March 2012

  • Eriogonum nudum Douglas ex Benth. ssp. pauciflorum (S. Watson) Munz
  • Eriogonum latifolium Sm. ssp. pauciflorum (S. Watson) S. Stokes
This is such a charming Buckwheat with its green sticks and tiny pink buds. The perianth is much lighter, almost white when fully opened up. The UV version is mostly UV-dark and shows some iridescence. I need to revisit it sometime as I was losing the light by the time I got around to making the UV frames.

1. Natural Resources Conservation Service (2013) Eriogonum nudum var. pauciflorum Plant Profile. US Department of Agriculture. http://plants.usda.g...e?symbol=ERNUP2
2. Flora of North America Online (2013) Eriogonum nudum, vol. 5. FNA. New York & Oxford. http://www.efloras.o...n_id=250060414. This page also includes a key to the 13 varieties of E. nudum native to the western US and northern Mexico.

Equipment [Nikon D300-broadband + Nikon 105mm f/4.5 UV-Nikkor]

Visible Light [f/6.7 for 1/750" @ ISO 400 with Nikon D3S + Nikon 60mm f/2.8G Micro-Nikkor]
E. nudum has a basal rosette.
Attached Image: eriogonumNudumVisSun_030512joshuaTreeNpCA_35293origProofPn.jpg

Visible Light [f/6.7 for 1/750" @ ISO 400 with Nikon D3S + Nikon 60mm f/2.8G Micro-Nikkor]
Plant Haiku.
Attached Image: eriogonumNudumVisSun_030512joshuaTreeNpCA_35291origProofPn.jpg

Visible Light [f/16 for 1/250" @ ISO 800 with onboard Flash and Baader UVIR-Block Filter]
Attached Image: eriogonumNudumVisFlash_030512joshuaTreeNpCA_23383origProofPn.jpg

Ultraviolet Light [f/16 for 1/250" @ ISO 1250 with SB-14 UV-modified Flash and Baader UV-Pass Filter]
Attached Image: eriogonumNudumUVBaadSB14_030512joshuaTreeNpCA_23399origProofPn.jpg
Andrea G. Blum
Often found hanging out with flowers & bees.