Serving Southern Jefferson County in the Great State of Montana
Serving Southern Jefferson County in the Great State of Montana
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The clustered stems, expanding root system, milky white sap, bright green flowers encased in a yellow-green bract, and narrow leaves are characteristics of one of Montana's notorious noxious weeds, leafy spurge (Euphorbia esula). This species, like many other noxious weeds, is an Eurasian native species. It was most likely introduced to North America via contaminated ship ballasts, and the earliest recorded presence in North America dates back to 1827. This herbaceous perennial is a threatening...
At this time of year, you might notice an infiltration of tall yellow flowers on your property. This Eurasian species arrived here in the early 1900s and has become quite the nuisance. Its thick, alternating leaves branch off of the thick stem, leading to the snapdragon-like yellow flowers located towards the top of the plant. You might have already guessed which noxious weed I am referring to: Dalmatian toadflax (Linaria dalmatica). This invasive species thrives in cool, semiarid climates and...
You might notice clusters of small white flowers as you drive along your hometown roads and gaze out your window. You might even notice these flowers in your backyard. This species is not welcome in Montana, and it is categorized as a noxious weed in 23 other states. The term, noxious weed, refers to a weed that has been designated a harmful weed to natural habitats and crops by a governing authority. This persistent perennial is known as whitetop, or hoary cress (Lepidium drabae). Brought here...
