2019 Ron Vanderhoff 2017 James Bailey 2025 Laguna Canyon Foundation 2019 Ron Vanderhoff 2025 Laguna Canyon Foundation 2018 Josie Bennett 2024 Aidan Mahaffay 2024 Mike Russler 2024 Ron Vanderhoff 2022 Nancy Hamlett 2022 Ron Vanderhoff 2022 Ron Vanderhoff 2022 Ron Vanderhoff 2018 Ron Vanderhoff 2020 Ron Vanderhoff 2017 James Bailey 2020 National Park Service
Salsola australis is an annual herb that is not native to California.
[files.cfc.umt.edu] Non-native, Spread in US: It was first
introduced to the United States in 1873 when flaxseed that had been
brought to and planted in South Dakota was found to be contaminated
by Russian thistle seeds. From there the weed quickly spread and
established itself. In 1894 Lyster Dewey emphatically noted the quick
spread of the weed, particularly in comparison to Canada thistle, a weed
that had not spread as quickly though it had been present in North
America for one hundred years. By 1892, Russian thistle made its first
appearance in Colorado; merely two years later, a third of the state reported the presence of the
weed. Historic management varied depending on the stage in which the thistle was to be treated.
Several authors suggested pulling the weed when young prior to seeding and others recommended
burning the plant—a method that is now discouraged due to Russian thistle’s ability to easily
establish itself and out compete other plants in disturbed areas. (link added by Mary Ann Machi)
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2019 Ron Vanderhoff:!2017 James Bailey:!2025 Laguna Canyon Foundation:!2019 Ron Vanderhoff:!2025 Laguna Canyon Foundation:!2018 Josie Bennett:!2024 Aidan Mahaffay:!2024 Mike Russler:!2024 Ron Vanderhoff:!2022 Nancy Hamlett:!2022 Ron Vanderhoff:!2022 Ron Vanderhoff:!2022 Ron Vanderhoff:!2018 Ron Vanderhoff:!2020 Ron Vanderhoff:!2017 James Bailey:!2020 National Park Service:!
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 05/19/2025).