Calylophus berlandieri [Berlandier's Sundrops]

[dancingcat]

Frary, S.C. (2022) Calylophus berlandieri Spach. (Onagraceae) Berlandier’s Sundrops. Photographed in visible and ultraviolet light. LINK

 

Collected 23 April 2022 in Mockingbird Nature Park, Midlothian TX.  Voucher deposition: Botanical Research Institute of Texas Herbarium (BRIT) S. C. Frary [126].

 

Other Common Names:  Berlandier’s Evening-Primrose, Square-Bud Day-Primrose.

 

Comment:
Very showy 2-foot tall clumps of bright yellow flowers, blooming late April-June in North Texas in fields and along roadsides.  Note the square buds.   The soil is dry and very chalky.  Named for French-Swiss botanist-physician Jean-Louis Berlandier (1803-1851), who collected many plants in Mexico and Texas as a member of the 1828 Mexican Boundary Commission, and the 1850 International Boundary Commission.  
 
Reference:
George M. Diggs Jr., Barney L. Lipscomb, Robert J. O'Kennon (1999) Shinners and Mahler's Illustrated Flora of North Central Texas. Calylophus berlandieri page 854. Published by Botanical Research Institute of Texas, Fort Worth. Online in PDF format at Illustrated Flora of North Texas Online (accessed 06 April 2022).
 
Equipment: [Olympus EM1mk2-broadband + Olympus 30mm f3.5 macro]
 
Visible Light [f/11, iso 800, 0.8”, KolariVision UV/IR Cut HotMirror Pro 2 filter, ambient indoor room light.  In-situ taken with iPhone13 in pretty strong wind.]

 

 

Ultraviolet Light [f/11, iso 800, 3”, BaaderU filter, KolariVision UV flashlight, monochrome]

 

 

[colinbm]

Beaut flower & sharp.

 

[Andrea B.]

The square buds are really cool!

I really enjoy finding and photographing the Sundrops and Primroses. 

[Andy Perrin]

Pretty!