On the presence of Asplenium ×alternifolium nsubsp. heufleri (Aspleniaceae) in Belgium

In 2010, a specimen of A. ×alternifolium nsubsp. heufleri was found in Carrière de la Falize (Aywaille). This taxon is a hybrid of A. trichomanes subsp. quadrivalens (Maidenhair Spleenwort) and A. septentrionale subsp. septentrionale (Northern Spleenwort). Here, we describe the phylogeny, morphology and ecology of this hybrid and its parents. Despite the absence of this taxon in the Standard Flora of Belgium, it is probably not new to the flora of Belgium.

Publication year:2021

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