Andrea B. Posted May 22, 2013 Share Posted May 22, 2013 Castilleja exserta (Heller) Chuang & Heckard ssp. exserta (Orobanchaceae) Owl's Clover. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...ta-owls-clover/ Desert Botanical Garden, Phoenix, Arizona, USA22 April 2013Wildflower in botanical garden Synonyms:Escobita (Sp.)Exserted Indian PaintbrushOrthocarpus exsertus A. HellerOrthocarpus purpurascens Benth.Orthocarpus purpurascens Benth. var. pallidus D.D. KeckOrthocarpus purpurascens Benth. var. palmeri A. GrayComment:This California native of the genus Castilleja was formerly placed in Scrophulariaceae. Jepson (1) has moved Castilleja to Orobanchceae.It is quite colourful in Visible light, but uniformly UV-dark although the hairs are brighter.Hemiparasite. Reference:1. Jepson eFlora (2013) Castilleja exserta. Jepson Herbarium, U. of Cal.-Berkeley, Berkeley, CA. http://ucjeps.berkel...JM.pl?tid=182002. Lady Bird Johnson Wildflower Center (2013) Castilleja exserta. U of Texas at Austin, Austin, TX. http://www.wildflowe...id_plant=CAEX14 Equipment:[Nikon D600-broadband + Nikon 105mm f/4.5 UV-Nikkor][Nikon Coolpix A] Visible Light [f/11 for 1/250" @ ISO 100 with Coolpix A]Here you can see a few more of the narrow, hairy leaves. Visible Light [f/11 for 1/200" @ ISO 100 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/8 for 1/2.5" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] Link to comment
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