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Invasive Plant Details

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Russian Thistle

Latin Name: Salsola Kali

Priority Ranking: Regional EDRR

Identification

Flower: Small, inconspicuous greenish or pinkish flowers located at the leaf axils, blooming from late spring to early fall.

Leaves: Thin, spiny, needle-like leaves when young, becoming short and stiff as the plant matures.

Stems: Erect and bushy, often reddish, branching widely and forming a rounded, tumbleweed shape up to 150 cm tall.

Growing Environment: Thrives in arid environments, disturbed areas, roadsides, agricultural fields, and rangelands, particularly in saline or alkaline soils.

Growth Habit: Annual herb that forms bushy, rounded plants which break off at the base when mature, allowing it to tumble and spread seeds across large distances.

Priority Ranking: Regional EDRR

Impacts on Environment

Impacts: Highly invasive, particularly in arid regions, where it displaces native plants, reduces forage quality for livestock, and increases fire risk.

Toxicity: Large amounts can cause nitrate poisoning in cattle and sheep.

Photo Credits: freenatureimages.eu - Ed Stikvoort, Peter Meininger, Rutger Barendse