| Photo Information |
Copyright: JULIAN BERNAL (JulianJose)
![Silver Note Writer [C: 2 W: 0 N: 31]](http://i1.treknature.com/misc/n-n-s.gif) (126) |
| Genre: Plants |
| Medium: Color |
| Date Taken: 2008-08-15 |
| Categories: Flowers |
| Exposure: f/3.6, 1/100 seconds |
| More Photo Info: [view] |
| Photo Version: Original Version |
| Date Submitted: 2008-11-08 7:31 |
| Viewed: 885 |
| Points: 6 |
|
| [Note Guidelines] Photographer's Note |
Wikipedia:
Arctium lappa : Greater Burdock, Gobō
Burdock is any of a group of biennial thistles in the genus Arctium, family Asteraceae. Native to the Old World, several species have been widely introduced worldwide.
Plants of the genus Arctium have dark green leaves that can grow up to 18" (45 cm) long. They are generally large, coarse and ovate, with the lower ones being heart-shaped. They are woolly underneath. The leafstalks are generally hollow. Arctium species generally flower from July through to October.
The prickly heads of these plants are noted for easily catching on to fur and clothing, thus providing an excellent mechanism for seed dispersal.[2] Burrs cause local irritation and can possibly cause intestinal hairballs in pets. However, most animals avoid ingesting these plants.
After taking his dog for a walk one day in the early 1940s, George de Mestral, a Swiss inventor, became curious about the seeds of the burdock plant that had attached themselves to his clothes and to the dog's fur. Under a microscope, he looked closely at the hook-and-loop system that the seeds use to hitchhike on passing animals aiding seed dispersal, and he realised that the same approach could be used to join other things together. The result was Velcro.
Arctium lappa : Lampazo, Bardana
Planta original de Europa y Asia y difundida por América, prolifera en suelos baldíos, bordes de caminos, escombreras y cerca de zonas habitadas.
Se la conoce popularmente como aguipegotes, bardana, cachurrea, cadillo, hierba de los tiñosos, lampazo, lampazo mayor, lapaizo, pegadillo, sanalotodo.
Es una planta herbácea bienal, robusta de más de un metro de altura.Hojas grandes rugosas, ovales, alternas y de extremidad redondeada con grandes peciolos. Las flores se agrupan en corimbos y son de color rojo púrpura intenso y brácteas terminadas en ganchos. El fruto es una bola con muchos garfios que se adhieren a los animales para su difusión.
La planta que inventó el velcro ...
Julian |
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