Spotted Knapweed
by Kathleen Bishop
Title
Spotted Knapweed
Artist
Kathleen Bishop
Medium
Photograph - Photography
Description
Fine art photograph of the pink blossoms of spotted knapweed. The flowers may be pretty but this plant, Centaurea biebersteinii, is a noxious species from Europe which has invaded wildlands in North America. Knapweed is a pioneer species found in recently disturbed sites or openings. Once it has been established at a disturbed site, it continues to spread into the surrounding habitat. This species outcompetes natives through at least three methods:
1.A tap root that sucks up water faster than the root systems of its neighbors,
2.Quick spread through high seed production, and
3.Low palatability, meaning it is less likely to be chosen as food by herbivores. It is also suspected to be allelopathic, releasing a toxin from its roots that stunts the growth of nearby plants of other species.
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©Kathleen Bishop. kathleen-bishop.pixels.com. All Rights Reserved.
Uploaded
September 26th, 2013
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Viewed 335 Times - Last Visitor from Alsip, IL on 04/17/2024 at 10:46 AM
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