Propagule pressure, genetic structure, and geographic origins of Chondrilla juncea (Asteraceae): An apomictic invader on three continents.

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Gaskin JF, Schwarzlander  M, Kinter L, Smith JF, Novak SJ. 2013. Propagule pressure, genetic structure, and geographic origins of Chondrilla juncea (Asteraceae): An apomictic invader on three continents. American Journal of Botany 100(9): 1871–1882. 2013.