Eidesen , P. B., Müller , E., Lettner , C., Alsos , I. G., Bender , M., Kristiansen , M., Peeters , B., Postma , F., & Verweij , K. F. (2013). Tetraploids do not form cushions: association of ploidy level, growth form and ecology in the High Arctic <em>Saxifraga oppositifolia</em&gt; L. s. lat. (Saxifragaceae) in Svalbard. Polar Research, 32. https://doi.org/10.3402/polar.v32i0.20071