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Taken 25-Jul-19
Visitors 3

5 of 206 photos
Categories & Keywords

Subcategory Detail:
Keywords:Peter Meade, pjmeade, burdock, burdock flower, Arctium, Asteraceae, Compositae, plant, botany, close-up, summer, summerr sun, sunshine, differential focus, focus on foreground, copy space, warm temperature, colour image, day, flowering plant, plant part, flower, fresh, flower head, fragility, growth, horizontal, inflorescence, nature, beauty in nature, no people, outdoors, leaves, non-urban scene, rural, rural scene, velcro, bee, pollination, insect, summer life, animals in the wild, arthropod
Photo Info

Dimensions800 x 533
Original file size282 KB
Image typeJPEG
Color spacesRGB
Date taken25-Jul-19 09:20
Date modified29-Apr-20 16:38
Shooting Conditions

Camera makeCanon
Camera modelCanon EOS 7D
Focal length420 mm
Max lens aperturef/5.7
Exposure1/500 at f/8
FlashNot fired, compulsory mode
Exposure bias0 EV
Exposure modeAuto
Exposure prog.Aperture priority
ISO speedISO 640
Metering modePartial


Close-up of a burdock flower being polinated by a bee beside the River Thames in Berkshire, lit by bright summer sunshine against a near black background.

Burdock was pivotal to the invention of Velcro.
George de Mestral (1907-1990) noticed that seeds of the burdock plant attached themselves to both his clothes and to his dog's coat. Microscopic examination of the seeds showed that they had hooks that caught soft material such as fur. Mestral recognised the potential for a fastener that used a hook and loop system and in 1955 he patented his invention that was sold under the Velcro brand name.