TNC Global Invasive Species Team page


	The Global Invasive Species Team

Introduction

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Here, this winter shot shows a dense thicket of yellow star thistle "skeletons", gone by plants with conspicuous Q-tip-like old seed heads in northern Hell's Canyon where yellow star thistle has invaded bluebunch wheat grass/Idaho fescue grassland.

Slide 59

Center for Invasive Species and Ecosystem Health