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UltravioletPhotography

Datura wrightii [Jimsonweed]: Additional Material


Andrea B.

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Blum, A.G. (2013) Additional material on Datura wrightii Regel (Solanaceae) Jimsonweed. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...ional-material/

 

Joshua Tree National Park, California, USA

Lat [N33°55'57.2"] Lon [W115°57'18.7"]

05 March 2012

Wildflower

 

Synonyms:

  • Sacred Thornapple
  • Sacred Datura

Comment:

D. wrightii was first described in UV by Rørslett (2013). Here is another view of the flower together with a close-up of two of its anthers which are moderately UV-reflective with brighter streaks.

Beautiful as the flower is, all parts of the plant are poisonous. It really is not a good choice as a recreational drug because it causes respiratory depression, seizures and/or death.

D. wrightii grows across the continental US and Mexico and is frequently used as a garden plant because of its showy flowers.

 

Reference:

1. Jepson eFlora (2013) Datura wrightii. Jepson Herbarium, U. of Cal.-Berkeley, Berkeley, CA. http://ucjeps.berkel...JM.pl?tid=22389

2. Rørslett, B. 2013. Datura wrightii Regel (Solanaceae). Sacred Datura. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...-sacred-datura/

 

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

 

Visible Light [f/13 for 1/750" @ ISO 400 in Sunlight with Baader UVIR-Block Filter]

daturaWrightiiVisSun030512joshuaTreeNpCA_35220proof.jpg

 

Visible Light [f/8 for 1/1500" @ ISO 400 in Sunlight with Baader UVIR-Block Filter]

Unopened flower.

daturaWrightiiBudVisSun030512joshuaTreeNpCA_35210orig.jpg

 

Ultraviolet Light [f/11 for 1/250" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

Anthers.

daturaUVBaadS14_030512joshuaTreeNpCA_23194origProofPn3.jpg

 

Ultraviolet Light [f/11 for 1/250" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

The edges of the rolled flower bud are very UV-reflective.

daturaUVBaadS14_030512joshuaTreeNpCA_23181origProofPn3.jpg

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