Tetraneuris scaposa (Plains yellow daisy, Four-nerve daisy)

Plains Yellow Daisy (Plains yellow daisy,Four-nerve daisy, Hymenoxys, Stemmy four-nerve daisy, Yellow daisy, Bitterweed) is an upright perennial with a woody base that reaches 18 inches in height. It can be found in the Edwards Plateau and South Texas Plains in calcareous, sandy, caliche and rocky soils. The leaves are basal and measure three inches in length. The flower head consists of numerous yellow disk flowers and 12 to 31 bright yellow ray flowers with red-brown veins that are visible on the underside. Plains Yellow Daisy blooms from March to October. The name Plains Bitterweed is due to the bitter taste and bad odor caused by a resinlike substance found on the plant.

www.sbs.utexas.edu/bio406d/images/pics/ast/tetraneuris_sc...

La Tetraneuris scaposa ( Plains yellow daisy, Four-nerve daisy, Hymenoxys, Stemmy four-nerve daisy, Yellow daisy, Bitterweed)
è una pianta selvatica perenne originaria del Sud degli Stati Uniti.Appartiene alla famiglia delle Asteraceae (Aster Family).
I fiori sono gialli simili alle margherite.

Taken in: Italia / Veneto / San Bonifacio (show map)

Taken on: April 10, 2009

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Camera: Panasonic DMC-FX7, f/5.6, 1/500 sec, 5.8mm, ISO 80 (more info) (hide info)

Camera:	Panasonic DMC-FX7
Aperture:	f/5.6
Exposure Time:	0.002 sec (1/500)
Focal Length:	5.8mm
ISO:	80
Exposure Bias:	0 EV
Flash:	Auto, Did not fire
Exposure Program:	Program AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
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