Equisetaceae Michaux ex A.P. de Candolle. Horsetail Family.
A family with a single genus and about 15-20 species. Equisetaceae is an evolutionarily isolated group, which has been interpreted variably over time. The current consensus is that Equisetaceae be included as "ferns", but the basalmost group to be so considered. The profound morphological differences and ancient age of the lineage make its treatment as a separate class from the ferns equally or more compelling.
Ref: Christenhusz et al. (2019); Des Marais et al. (2003); Hauke (1993) In Flora of North America Editorial Committee (1993b); Hauke In Kramer & Green (1990); Lellinger (1985); Mickel (1979); PPG I (2016). Show full citations.
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.
© Erik Danielson | Equisetum source | Original Image ⭷
© Gary P. Fleming | Equisetum | Original Image ⭷Feedback
See something wrong or missing on about Equisetaceae? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.)
Cite as...