Fruit of the Common Cocklebur (Xanthium strumarium). Each burr is about 2 cm long with recurved spine tips that aid seed dispersal by animals. The plant is toxic to mammals. Southwest Oregon, USA.
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Fruit of the Common Cocklebur (Xanthium strumarium). Each burr is about 2 cm long with recurved spine tips that aid seed dispersal by animals. The plant is toxic to mammals. Southwest Oregon, USA.

Filename: 508088.jpg
Photographer: Robert & Jean Pollock
Source: Visuals Unlimited, Inc.
Date: 1 Nov 2007
Location:
Credit: Robert & Jean Pollock/Visuals Unlimited, Inc.
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Model Release: No
Property Release: No
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