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Lysimachia punctata [Dotted Loosestrife]


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Rørslett, B. 2013 Lysimachia punctata L. (Primulaceae). Dotted Loosestrife. Flowers photographed in visible and ultraviolet light. http://www.ultravioletphotography.com/content/index.php?/topic/200-lysimachia-punctata-dotted-loosestrife/

 

Lysimachia punctata L.

NO: Fagerfredløs; fagerfredlaus

SE: Praktlysing

DK: Prikbladet Fredløs

FI: Tarha-Alpi

DE: Punktierte Gilbweidenrich

EN: Dotted loosestrife; Spotted Loosestrife; Large Yellow Loosestrife

 

A tall richly flowering perennial species, native to Europe, and widely naturalised from garden escapes. The plants have effecient vegetative dispersal by subterraean runners and rapidly form large clumps. Although the introductions usually are near urban districts, its dispersal potential has brought it into native vegetation as well and by trhe vigourous growth it poses a threat to native plant communities. L. punctata is blacklisted in Norway.

 

Flowers are bright yellow and borne in long inflorescences. It flowers in mid to late summer and attract a great many pollinators.

 

Plants collected and photographed near Oslo, Norway 19 Jul 2011.

 

LYSI_PUN_I1107197562_VIS.jpg

Image reference: LYSI_PUN_I1107197562_VIS.jpg

Visible light: Nikon D3, UV-Nikkor 105 mm f/4.5 lens, Baader UV/IR Cut filter, daylight.

 

LYSI_PUN_I1107190272_UV.jpg

Image reference: LYSI_PUN_I1107190272_UV.jpg

Utraviolet light: Nikon D200, UV-Nikkor 105 mm f/4.5 lens, Baader U 2" (Venus) filter, Broncolor Minicom studioflash uncoated Xenon tube.

 

The corolla comprises five petals fused at their base. It is covered with glandular hairs which appear black in UV. The centre of the flower is UV-dark as well.

 

[Published 19 Apr 2013]

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