Andy Perrin Posted July 28, 2019 Share Posted July 28, 2019 I believe this flower is yellow [dotted] loosestrife. Title will be amended if I'm wrong. :) Camera (except for SWIR) was Sony A7S converted, lens was EL-Nikkor 80mm/5.6. For SWIR, the Wollensack 25mm/1.4 lens was used. Visible650-405nm using BG38 2mm and DB850 dual bandpass filter UVThis is under Convoy S2+ 365nm. Filters were S8612 1.75mm and UG11 2mm.Saturation drastically boosted. This is in sunshine. IRGWith Tiffen #12 and DB850 dual bandpass filters. UVIVFBG38 2mm and DB850 dual bandpass filters on the camera, and a filtered Convoy S2+. White balance chosen to roughly match the flower color as it looked to me. UVIIFHoya R72 on the camera, filtered Convoy S2+ SWIR 1500-1600TriWave camera, 1500-1600nm Thorlabs bandpass filter Link to comment
Andrea B. Posted July 29, 2019 Share Posted July 29, 2019 The IRG is so striking! An excellent series, thanks for posting. Yes, this is a Yellow Loostrife, genus Lysimachia. Of the 14 Lysimachia species in New England, color and structural characteristics narrow it down to 4 possibilities of which I think Lysimachia punctata is a likely possibility. Here is a link to Birna's Norwegian version: Lysimachia punctata [Dotted Loosestrife]Interesting side note: L. punctata is blacklisted in Norway as an invasive pest. Here in New England it is not. At least so far. Link to comment
Andy Perrin Posted July 29, 2019 Author Share Posted July 29, 2019 It’s the first time I’ve seen it here, being grown as a bush adjoining the street. I don’t think it’s invasive in our climate? Based on N=1 samples. Link to comment
nfoto Posted July 29, 2019 Share Posted July 29, 2019 You wouldn't by chance have a photo of the entire plant? There is this feeling we *might* be dealing with a different species. The genus is correct, however. Link to comment
Cadmium Posted July 29, 2019 Share Posted July 29, 2019 I like the IRG and the UVIIRF. Link to comment
Andy Perrin Posted July 29, 2019 Author Share Posted July 29, 2019 I don't have a photo of the whole plant but it's not far away. I can get one. Link to comment
nfoto Posted July 29, 2019 Share Posted July 29, 2019 Please do. The correct ID will be much easier and more secure. Link to comment
Andy Perrin Posted July 29, 2019 Author Share Posted July 29, 2019 Ok, try these. Same plant, standing at different distances. Moving from farther to closer. Link to comment
nfoto Posted July 29, 2019 Share Posted July 29, 2019 Must be L. punctata, but nowhere near the vigour of growth and flowering we are accustomed to over here. Link to comment
Andy Perrin Posted July 29, 2019 Author Share Posted July 29, 2019 Probably why it's not considered "invasive" down here. Maybe we are at the edge of its favored climate? Link to comment
Andrea B. Posted July 30, 2019 Share Posted July 30, 2019 The petal edges are ciliate with little stalked glands. There are *no* staminodes. Filaments are connate near the base. The corolla is 5-merous. Petals not dotted or streaked with black or red. Stems are slightly fuzzy. Calyx lobes have no red/brown margins. Can't be anything else in New England but L. punctata. Here you see this flower mostly in gardens. There are, of course, some escapes. Link to comment
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