Purple Loosestrife (Lythrum salicaria) invasive emergent plant

Purple Loosestrife

(Lythrum salicaria)

Purple loosestrife is a highly invasive wetland plant that can reach heights of 6–7 feet. It is easily recognized by its bright purple flowers, which grow in dense spikes at the ends of its four-sided stems. The leaves are typically arranged in opposite pairs along the stem. This aggressive species spreads rapidly, primarily through prolific seed production, outcompeting native vegetation and disrupting wetland ecosystems. Effective management is crucial, with early intervention recommended before the plant sets seed to prevent further spread and preserve native plant diversity.

⚠️  Invasive Species

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