Browse resources Displaying 1 - 5 of 5 resources Purple Loosestrife Tall, spiky weed crows out essential vegetation. Mary Corp | Oct 2018 | Article Puncture Vine Prickly, resilient vine comes back for more. This little bug has something to say about that. Mary Corp | Oct 2018 | Article Meadow Knapweed Tall, aggressive perennial destroying native plants. Mary Corp | Oct 2018 | Article Leafy Spurge Hearty perennial reduces rangeland to a monoculture. Mary Corp | Oct 2018 | Article Common Crupina Small flowering plant that poses a threat to rangeland. Mary Corp | Oct 2018 | Article