Andrea B. Posted May 1, 2013 Share Posted May 1, 2013 Blum, A.G. (2013) Berlandiera lyrata Bentham (Asteraceae) Chocolate Flower. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...ocolate-flower/ Desert Botanical Garden, Phoenix, Arizona, USA 22 April 2013 Wildflower in botanical garden Synonyms: Greeneyes Comment: The flower gets its name from the chocolate scent released by the rays and stamens. B. lyrata is the only Berlandiera in Arizona. When the flower is mature and the rays fall off, the mint green involucre (seen on the bud in the third photo below) holding the chocolate-coloured seeds remains to give the plant its alternate common name 'Greeneyes'. The plant is native to the US desert southwest. It was funny to find this Chocolate Flower identification sign in the midst of all the Desert Verbena. We first saw B. lyrata in 2012 at the Arizona-Sonora Desert Museum in Tucson, Arizona, but I did not have a chance to photograph it then. See Rørslett (2013) for further detailed views of B. lyrata. Reference: 1. Epple, A.O. (1995) Greeneyes, page 261. A Field Guide to the Plants of Arizona. Falcon Guides, Globe Pequot Press, Guilford, CT. 2. Rørslett, B. 2013. More on the UV Signature of Berlandiera lyrata Benth. (Asteraceae). Chocolate Flower. Flowers photographed in ultraviolet light. http://www.ultraviol...ocolate-flower/ Equipment [Nikon D600-broadband + Nikon 105mm f/4.5 UV-Nikkor] Visible Light [f/11 for 1/60" @ ISO 100 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/8 for 1/200" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] Visible Light [f/11 for 1/200" @ ISO 400 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/8 for 1/30" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] Link to comment
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