Panarctic Flora

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320118 Juncus gerardii Loisel.

Geography: Amphi-Atlantic - European - Asian (W).

Notes: Juncus gerardii is probably functionally tetraploid. We accept two subspecies - subsp. gerardii and subsp. atrofuscus - as major and largely allopatric geographical races. The morphological differences are clear (e.g., Snogerup 1980; Kirschner et al. 2002c; Elven et al. 2005) but transitional forms occur in their narrow meeting zone in northern Norway.

Higher Taxa