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Hemerocallis lilioasphodelus [Yellow Day-Lily]


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#1 nfoto

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Posted 28 April 2013 - 17:56

Rørslettt, B. 2013. Hemerocallis lilioasphodelus L. (Hemerocallidaceae). Yellow Day-Lily. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...ellow-day-lily/

Hemerocallis lilioasphodelus L.
Syn. Hemerocallis flava L.
NO: Gul daglilje
SE: Gul dagslilja
DK: Gul Daglilje
FI: Keltapäivänlilja
DE: Gelbe Taglilie
EN: Yellow Day-lily; Lemon Lily

This is an elegant, medium tall plant originating from eastern Asia and widely cultivated and naturalised elsewhere. Parts of the plant are edible or have been used in Asian medicine. The showy yellow flowers appear in late spring to early summer to make it an attractive enhancement of gardens. Garden escapes are common and H. lilioasphodelus is fully naturalised in parts of Europe, but rarely seen far away from urbanised areas.

Plants collected and photographed near Oslo, Norway, 21 Jun 2010.

Attached Image: HEME_LIL_I1006211397_VIS.jpg
Image reference: HEME_LIL_I1006211397_VIS.jpg
Visible light: Nikon D3S, Medical-Nikkor 120 mm f/4 lens, built-in ring flash.

Attached Image: HEME_LIL_I1006210768_UV.jpg
Image reference: HEME_LIL_I1006210768_UV.jpg
Ultraviolet light: Nikon D40X, UV-Nikkor 105 mm f/4.5 lens, Baader U2" (Venus) filter, SB-140 flash.

In UV there are large basal patches on the tepals. Traces of iridscence are observable there. Anthers are dark but their filaments are quite UV-bright. The flowers are coloured differently on the abaxial side as well and this makes the buds appear in darker hues than the opened flower.

[Published 28 Apr 2013]