Andrea B. Posted July 21, 2014 Share Posted July 21, 2014 Blum, A. G. (2014) Spergula arvensis L. (Caryophyllaceae) Corn Spurrey. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...is-corn-spurry/ Southwest Harbor, Maine, USA11 July 2014Wildflower Synonyms:StickwortSpergula arvensis var. sativa (Boenn.) Reichenb.Spergula sativum Boenn.Comment:One of the often overlooked little white flowers of summer, S. arvensis has distinctive clustered, almost whorled looking leaves at the nodes. The plant is non-native to the US. While imported for a good cause as a sandy soil crop, it is now considered a weed(1).In Ultraviolet the perianth is fairily UV-dark with the flower center slightly more so. The sepals appear to have some UV-reflectivity. Reference:1. New England Wild Flower Society (2014) Spergula arvensis L. Corn Spurrey. https://gobotany.new...rgula/arvensis/ Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar] Visible Light [f/11 for 1/4" @ ISO 400 with onboard Flash and Baader UVIR-Block Filter] Ultraviolet Light [f/11 for 8" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]A long exposure was taken so the UV flash could be used twice for better lighting. Visible Light [f/11 for 1.3" @ ISO 400 with onboard Flash and Baader UVIR-Block Filter] Link to comment
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