Taken 2-Apr-10
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Dimensions3000 x 4500
Original file size38.6 MB
Image typeTIFF
Color spaceAdobe RGB (1998)
Date taken2-Apr-10 16:21
Date modified4-Jan-16 15:16
Shooting Conditions

Camera makeCanon
Camera modelCanon EOS 5D Mark II
Focal length65 mm
Max lens aperturef/2.8
Exposure1/1600 at f/6.3
FlashNot fired, compulsory mode
Exposure bias0 EV
Exposure modeManual
Exposure prog.Manual
ISO speedISO 1000
Metering modePattern
White Tackstem under flower

White Tackstem under flower

Calycoseris wrightii, commonly known as white tackstem, is an annual spring wildflower, one of two species in the genus Calycoseris; the other species is C. parryi, the Yellow tack-stem. They are part of the Asteraceae, the sunflowers, daisies, etc.
White tackstem is found in the southwestern United States and northwestern Mexico in the states of California, Nevada, Utah, New Mexico, Arizona, Baja California-north, and Sonora; it is found in one county in Texas, ([1]).
It is a white daisy-like flower up to more than 2.0 inches (5 cm) across; when it grows supported amongst other plants it can be more than 18 in tall. It has one easy distinguishing feature: the closed outside of the petals contain two linear purple stripes-(fine reddish veins abaxially-2 to 3 cm (1 in)). It is a spring wildflower found in the desert regions and is plentiful after winter rains. It grows up to 4000 ft (1,220 m) elevation.