Psilostrophe tagetina [Woolly Paperflower]

[Andrea B.]

Blum, A.G. (2013) Psilostrophe tagetina (Nuttall) Greene (Asteraceae) Woolly Paperflower. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...ly-paperflower/

 

Desert Botanical Garden, Phoenix, Arizona, USA

N33°27'42.7" W111°56'45.0"

22 April 2013

Wildflower in botanical garden

 

Synonyms:

• Psilostrophe cerifera var. biennis
• Psilostrophe tagetinae

 

Comment: Usually seen with 3 notched rays, but can have up to 5. Grows at generally higher altitudes than its cousin P. cooperi, although there is some overlap. Like other Psilostrophe, the rays become dry and papery with age.

 

Reference:

Epple, A.O. (1995) Paperflower, page 287. A Field Guide to the Plants of Arizona. Falcon Guides, Globe Pequot Press, Guilford, CT.

 

Equipment:

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

[Nikon Coolpix A]

 

Visible Light [f/6.3 for 1/1250" @ ISO 100 with Coolpix A]

 

Ultraviolet Light [f/8 for 1/60" @ ISO 800 with SB-14 UV-modified Flash and Baader UV-Pass Filter]