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UltravioletPhotography

Delosperma nubigenum [Yellow Ice Plant]


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Blum, A.G. (2021) Delosperma nubigenum (Schltr.) L.Bolus (Aizoaceae) Yellow Ice Plant. Flowers photographed in ultraviolet, visible and infrared light. LINK

 

La Secuela, Eldorado at Santa Fe, Santa Fe, New Mexico, USA

11 May 2021

Cultivar in home garden

 

 

Comment:

This mat-forming succulent is indigenous to South Africa. It covers the border in front of some rose bushes in the garden. The flowers open in early morning and close up towards the end of the day.

 

In ultraviolet light, the petals are UV-bright, a very pale false-yellow. The distal portion of the filaments/anthers are UV-dark. The proximal portion of the filaments are pale false-blue. There is a diffuse, false-blue, central bull's-eye.

 

In all three wavelbands the petals show some iridescence.

 

Reference:

1. New Plants of Southern Africa (acc 31 May 2021) Aizoaceae Delosperma nubigenum (Schltr.) L.Bolus. South African Biodiversity Institute. Botanical Database of Southern Africa.

 

 

Equipment [Nikon D610-broadband + Nikon 105mm f/4.5 UV-Nikkor]

 

 

Visible Light [f/16 for 1/800" @ ISO-100 in Sunlight with Baader UVIR-Block Filter]

delosperma_vis_sun_20210511_22726laSecuelapn01.jpg

 

 

Ultraviolet Light [f/16 for 1/3" @ ISO-100 in Sunlight with SEU UV-Pass Filter]

delosperma_uvSeuRed_sun_20210511_22743laSecuelapn01.jpg

 

 

Infrared Light [f/16 for 1/640" @ ISO-100 in Sunlight with B+W 092 IR-Pass Filter]

delosperma_ir092_sun_20210511_22760laSecuelapn01.jpg

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