Stinging Hair (Urtica dioica)
Browse Gallery
       

Stinging Hair (Urtica dioica)

Urtica dioica

Magnification: 64:1

Stock image request

Micronaut images are rights-managed. If you want to get a quote, please contact us, providing the following information:  (1) image name, (2) specific use, (3) industry, (4) distribution area, (5) format, (6) circulation or print run, and (7) duration. For further information, click here. Please note that we cannot answer incomplete requests. Thank you.

[

Name

Email

Message

Input this code: captcha

Order Fine Art Prints

Editions and prices upon request

For further information http://www.oeggerli.com/editions/
or e-mail me:info@oeggerli.com

Categories: , .
Print Friendly

Hand-colored scanning electron micrograph of the stinging nettle hair (Urtica dioica), by Martin Oeggerli.

The Stinging Nettle (Urtica dioica) is a plant with soft green leafs that are equipped with glands as well as short non-stinging and special elongated stinging hairs (center), from which the species derives its common names: stinging nettle, burn nettle, burn weed, or burn hazel.

Stinging hairs (trichomes) produce a painful stinging sensation by injecting a chemical mixture when touched by humans or other animals. They act like hypodermic needles: after the tip breaks off, a chemical mixture composed of histamine, acetylcholine, 5-HT (serotonin), moroidin, leukotrienes and formic acid is injected and causes pain or paresthesia.

Furthermore, the plant has a long history of use in medicine, as food source (tea) and as source of fibre.