Attachment_2_Contractor_Priority_Species_2026.pdf

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Invasive Plant Motorized Treatment for Grand Teton
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140P1426Q0069
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This document is an Invasive Plant Priority Treatment List for 2026 that categorizes invasive plant species by management priority level. The Priority Treatment List contains 23 species designated for immediate action, including cheatgrass, spotted knapweed, leafy spurge, Canada thistle, and yellow toadflax, among others. These species represent the highest management priority due to their invasiveness and impact on native ecosystems.

The Watch List comprises 67 species that require monitoring and management consideration, including poison hemlock, purple loosestrife, Russian olive, Russian knapweed, and yellow starthistle. Species on the Watch List are either emerging invasive threats, species with limited current distribution that warrant prevention efforts, or established species requiring continued management to prevent further spread. The document provides no response dates, pricing information, award details, or federal contract-specific terms, as it functions as a reference guide for invasive species management priorities rather than a solicitation document.

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Invasive Plant Priority Treatment List 2026

Cheatgrass Common St. Johnswort Dalmatian toadflax Field bindweed Hoary alyssum Oxeye daisy Scentless chamomile Silver cinquefoil Spotted knapweed Sulfur cinquefoil White campion Yellow toadflax Canada thistle Common mullein Houndstongue Musk thistle Yellow sweetclover Kochia Black Henbane Bull Thistle Leafy Spurge Meadow Hawkweed Orange Hawkweed Common Tansy

Watch List

African rue Austrian fieldcress Baby's breath Bouncing bet Brazilian elodea Chicory Common bugloss Common crupina Common reed Common teasel Costmary Diffuse knapweed Elongated mustard Field Scabious Flowering rush Garlic mustard Goatsrue Iberian starthistle Knotweed complex Mediterranean sage Medusahead rye Moth mullein Plumeless thistle Poison hemlock Policeman's helmet Puncturevine Purple loosestrife Purple starthistle Quackgrass Russian knapweed Russian olive Scotch broom Scotch thistle Squarrose knapweed Summer pheasant’s-eye Tall buttercup Tansy ragwort Thesium Ventenata

Viper's Bugloss Yellow chamomile Yellow flag iris Yellow starthistle Absinth wormwood Birdsfoot Trefoil Black henbane Bull thistle Common burdock Common Tansy Cypress spurge Dames Rocket Dyers woad Hoary cress (whitetop) Kochia Leafy spurge Meadow Hawkweed (yellow) Myrtle spurge Orange Hawkweed Palmer Amaranth Perennial pepperweed Rush skeletonweed Russian Thistle Saltcedar

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