A monotypic genus, north temperate in distribution. Two other species formerly included in Matteuccia (or sometimes in Onoclea) are either better treated in the genus Pentarhizidium Hayata (Gastony & Ungerer 1997; PPG I 2016; Koenemann, Maisonpierre, & Barrington 2011), or else the genera Pentarhizidium, Matteucia, and Onocleopsis should be united into Onoclea (Christenhusz, Zhang, & Schneider 2011). The members of the family store starch in their expanded and persistent petiole bases.
Ref: Christenhusz, Zhang, & Schneider (2011); Gastony & Ungerer (1997); Johnson (1993a) In Flora of North America Editorial Committee (1993b); Koenemann, Maisonpierre, & Barrington (2011); Kramer & Green (1990); PPG I (2016); Xing, Wang, & Kato in FoC (2013). Show full citations.