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[Andrea B.]

Blum, A.G. (2017) Solanum carolinense L. (Solanaceae) Horsenettle. Flowers photographed in ultraviolet, visible light, infrared, UV+Blue+Green light http://www.ultraviol...e-horse-nettle/ Updated: 26 August 2017. New set added.


Other Common Names:

• Carolina Horsenettle
  
• Carolina Nightshade

Comment: Horsenettle is one of the many toxic members of the Nightshade family (Solanaceae) which also includes the two human food plants, tomato and potato. Found everywhere in the US, Solanum carolinense is considered a noxious weed which is hard to remove manually because of its sharp spines. One rather beat-up specimen below was found at the edge of a corn field. Another large stand of S. carolinense was found in a park area left to grow naturally to provide habitat for animals and insects.

In UV the corolla exhibits a UV-dark center star with UV-bright rays along the petal midrib. The petals are moderately UV-dark. The anthers, which release pollen through their top pores, are UV-black. The conical cells are more evident in one of the Visible photos.

Reference:
1. Newcomb, L. (1977) Horse Nettle, page 216. Newcomb's Wildflower Guide. Little, Brown & Co., New York City, NY.



SET 1
Deep Cut Gardens, Middletown, New Jersey, USA
24 August 2017
Wildflower

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


Visible Light [f/16 1/500" @ ISO-200 in Sunlight with Baader UVIR-Block Filter]


Visible Light [f/16 for 1/200" @ ISO-100 in Sunlight with Baader UVIR-Block Filter]
Abaxial view.


Ultraviolet Light [f/11 for 1/2.5" @ ISO-400 in Sunlight with BaaderU UV-Pass Filter]


Ultraviolet Light [f/11 for 1/6" @ ISO-400 in Sunlight with BaaderU UV-Pass Filter]
Abaxial view.


Infrared Light [f/16 for 1/125" @ ISO-200 in Sunlight with B+W 092 IR-Pass Filter]


UV+Blue+Green [f/16 for 1/4" @ ISO-200 in Sunlight with UG5(1.5mm) + S8612(2.00mm)]




SET 2
Holmdel Park, Holmdel, New Jersey, USA
27 August 2013
Wildflower

Equipment [Nikon D600-broadband + Nikon 105mm f/4.5 UV-Nikkor]

Visible Light [f/11 for 1/200" @ ISO 500 with onboard Flash and Baader UVIR-Block Filter]


Ultraviolet Light [f/8 for 1/50" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

[Andrea B.]

Updated: 26 August 2017. New set added.