Andrea B. Posted June 22, 2021 Share Posted June 22, 2021 Blum, A.G. (2021) Asclepias subverticillata (Gray) Vail (Apocynaceae) Whorled Milkweed. Flowers photographed in ultraviolet and visible light. https://www.ultravio...orled-milkweed/ Update: 09 Feb 2022 Added habit photo. El Dorado at Santa Fe, Santa Fe, New Mexico, USA Found along Camino Entrada. 20 June 2021 Wildflower Synonyms: Asclepias galioides auct. non Kunth Other Common Names: Horsetail Milkweed Poison Milkweed Western Whorled Milkweed Comment: After photographing this pretty greenish-white Milkweed, I looked up the names of the parts of this complex flower and made a little reminder diagram. Milkweeds are pollinated by bees who manage to stick their foot into openings along the side of the gynostegium and hook up with a pair of pollen sacs to pull out of the center. At the next flower if the bee manages to again insert a foot carrying the pollen sacs into the center and leave them behind, then the flower will become pollinated. It seems to work well enough if there are tricky-footed bees about. "-) References: 1. SEINet Arizona-New Mexico Chapter (acc 14 Mar 2021) Asclepias subverticillata. This is a southwestern biodiversity organization making use of the Symbiota portal software. 2. Southwest Colorado Wildflowers (acc 22 Mar 2021) Asclepias subverticillata. Website published and maintained by Al Schneider and hosted by Rocky Mountain Biological Laboratory. 3. Wildflowers of New Mexico (acc 22 Mar 2021) Asclepias subverticillata. Website published and maintained by George Oxford Miller. 4. Allred, Kelly W., Jercinovic, Eugene M., Ivey, Robert DeWitt (2021) Flora Neomexicana III: An Illustrated Identification Manual, Second Edition, Part 2, Asclepias Key, page 68. Print on demand at lulu.com. 5. Finley, Willa F., Nieland, Lashara J. (2013) Land of Enchantment Wildflowers. Asclepias subverticillata, page 266. Texas Tech University Press, Lubbock, Texas. 6. Littlefield, Larry J., Burns, Pearl M. (2015) Wildflowers of the Northern and Central Mountains of New Mexico. Horsetail Milkweed, page 69. University of New Mexico Press, Albuquerque, New Mexico. Habit/Habitat Photo The milkweed is growing in a disturbed area along with some grasses and sunflowers (the dark green leaves). Nikon Z + Nikkor Z 24-70/4 S Equipment [Nikon D610-broadband + Novoflex 35/3.5 Noflexar] Visible Light [f/11 for 2" @ ISO-400 in Ambient Skylight with Baader UVIR-Block Filter] The inflorescence is umbellate. Ultraviolet Light [f/11 for 30" @ ISO-400 with SB-140 UV-Flash and BaaderU UV-Pass Filter] Two flashes were made in the 30" interval. The flowers have quite an interesting UV signature showing UV-bright edging on both the petals and the hoods. Link to comment
Cadmium Posted June 22, 2021 Share Posted June 22, 2021 Andrea, another interesting flower. Great photos! Link to comment
Fandyus Posted June 22, 2021 Share Posted June 22, 2021 Nice. Are you perhaps planning to release an atlas of flowers in UV as a paper book? Given how many plants you analyze it would seem like you are :D Link to comment
Andrea B. Posted June 24, 2021 Author Share Posted June 24, 2021 I don't really have any plans for a book. There really is not much interest in UV flowers. Link to comment
Fandyus Posted June 26, 2021 Share Posted June 26, 2021 I don't really have any plans for a book. There really is not much interest in UV flowers.Really? I can't imagine that nobody would buy a proper UV floral atlas if it were to be compiled. Link to comment
Stefano Posted June 26, 2021 Share Posted June 26, 2021 Maybe not nobody, but very few people, and publishers don't print books that only a few hundreds/thousands people would buy. In my high school there were classrooms who had a subject taught in only three schools in Italy, and they had no books for the same reason. Link to comment
Andy Perrin Posted June 26, 2021 Share Posted June 26, 2021 Yep, that's correct. You need a market to sell anything. There are print-on-demand places but they often charge the author, which is the wrong direction for how the money should be flowing! Link to comment
Bill De Jager Posted June 27, 2021 Share Posted June 27, 2021 Nice job on some fascinating flowers! Link to comment
Andrea B. Posted February 10, 2022 Author Share Posted February 10, 2022 Update: 09 Feb 2022 Added habit photo. Link to comment
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