page_title: Jens Clausen
hierarchical_section_title: Jens Clausen
caption_attribution_description: English: Viola tricolor (A) and Viola arvensis (B)
context_page_description: Jens Christen Clausen was a Danish-American botanist, geneticist, and ecologist. He is considered a pioneer in the field of ecological and evolutionary genetics of plants.
context_section_description: Jens Christen (Christian) Clausen (March 11, 1891 – November 22, 1969) was a Danish-American botanist, geneticist, and ecologist. He is considered a pioneer in the field of ecological and evolutionary genetics of plants.
caption: Clausen's Masters and Ph.D. work studied hybrids formed between Viola arvensis and Viola tricolor.
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