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UltravioletPhotography

Balsamorhiza sagittata [Arrowleaf Balsamroot]: B MA SA Y-FBY


Andrea B.

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Andrea B.

Blum, A.G. (2013) Balsamorhiza sagittata (Pursh) Nuttall (Asteraceae) Arrowleaf Balsamroot. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...eaf-balsamroot/

 

Synonyms:

  • Buphthalmum sagittatum Pursh

Comment:

All parts of this plant were used by Native Americans as a food source.

It has a very lovely UV tonality with UV-dark disc florets and predominantly UV-dark rays with UV-bright tips. In our standardized colour format, the flower presents as yellow & blue.

Additional Comment below.

 

Reference:

1. Jepson eFlora. (2012) Balsamorhiza sagittata. Jepson Herbarium, U. of Cal.-Berkeley, Berkeley, CA. http://ucjeps.berkel...IJM.pl?tid=1643

2. Kershaw, MacKinnon & Pojar (1998) Arrow-leaved Balsamroot, page 238.Plants of the Rocky Mountains. Lone Pine Publishing, Edmonton, Canada.

 

SET 1

Twin Pines, LaPlata County, Colorado, USA

28 April 2013

Wildflower

 

Comment: An early bloomer at 7600 feet, this plant was found growing in a tangle of scrub oak (Quercus gambelli). This has likely helped preserve it from the mule deer (Odocoileus hemionus hemionus) who like to dine on it. While photographing it, I observed a great variety of insects visiting it - various small bees, a wasp, some beetles and a tiny crab spider.

 

Equipment:

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

[Nikon Coolpix A]

 

Visible Light [f/8 for 1/800" @ ISO 200 using Coolpix A]

balsamorhizaSagitattaPlantVisSun_042813durangoCO_904origProofPn.jpg

 

Visible Light [f/11 for 1/800" @ ISO 400 in Sunlight with Baader UVIR-Block Filter]

balsamorhizaSagitattaVisSun_042813durangoCO_9904proofPnCrop.jpg

 

Visible Light [f/8 for 1/1000" @ ISO 200 using CoolpixA]

balsamorhizaSagitattaInvolucreVisSun_042813durangoCO_907proofPnCrop.jpg

 

Visible Light [f/8 for 1/800" @ ISO 200 using CoolpixA]

balsamorhizaSagitattaLeafVisSun_042813durangoCO_910proofPnCrop01.jpg

 

Ultraviolet Light [f/11 for 1/100" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

balsamorhizaSagitattaUVBaadSB14_042813durangoCO_9914proofPnCrop2.jpg

 

Ultraviolet Light [f/11 for 1/100" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

This side view of B. sagittata is from a second specimen found on 03 May 2013 growing near the first. Note the UV-bright, tomentose phyllaries and stem.

balsamorhizaSagittataUVBaadSB14_050313twinPines_10847proofPnCrop.jpg

 

SET 2

Mesa Verde National Park, Montezuma County, Colorado, USA

02 May 2013

Wildflower

 

Equipment:

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

 

Visible Light [f/11 for 1/2000" @ ISO 800 in Sunlight with Baader UVIR-Block Filter]

balsamorhizaSagittataVIsSun_050213MesaVerdeNatParkCO_10614proofPnCrop.jpg

 

Ultraviolet Light [f/8 for 1/250" @ ISO 800 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

balsamorhizaSagittataUVBaadSB14_050213MesaVerdeNatParkCO_10632proofPn2Crop.jpg

 

Ultraviolet Light [f/8 for 1/200" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

This back view of B. sagittata is from a second specimen found growing near the first.

balsamorhizaSagittataUVBaadSB14_050213MesaVerdeNatParkCO_10586proofPnCrop01.jpg

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