Identification of A. strictum isolates has shown that this fungus is phenotypically diverse and may vary genetically. Due to phylogenetic ambiguities, an unknown proportion of the literature on A. strictum is based on studies of Acremonium sclerotigenum. The fungus can generally be successfully identified by the nuclear ITS region sequence analysis.
The classification of A. strictum isolates has demonstrated that this organism displays a range of phenotypic traits and may exhibit genetic differences. As a consequence, some literature on A. strictum is based on studies of Acremonium sclerotigenum due to phylogenetic uncertainties. The fungus can generally be identified through analysis of the nuclear ITS region sequence.