Why only tetraploid Solidago gigantea (Asteraceae) became invasive: a common garden comparison of ploidy levels.

Abstract excerpt

Many studies have compared the growth of plants from native and invasive populations, but few have considered the role of ploidy. In its native range in North America, Solidago gigantea Aiton (Asteraceae) occurs as a diploid, tetraploid and hexaploid, with considerable habitat differentiation and geographic separation amongst these ploidy levels. In the introduced range in Europe, however, only tetraploid...

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