Equisetum hyemale subsp. affine (Engelmann) Calder & Roy L. Taylor

Equisetum hyemale subsp. affine (Engelmann) Calder & Roy L. Taylor is an accepted subspecies name sensu FNA Ed. Comm., 1993.

Hybrid parent of

Equisetum ×ferrissii Clute.

Equisetum ×mackayi auct. non (Newman) Brichan.

Vernacular names

• prêle d'hiver d'Amérique Favreau

• common scouring-rush FNA Ed. Comm., 1993
• Dutch rush Washington Native Plant Society, 2010
• great scouring-rush Canadian Forest Service, 2007
• prairie scouring-rush Washington Native Plant Society, 2010
• rough horsetail Canadian Forest Service, 2007
• scouring-rush horsetail Washington Native Plant Society, 2010
• tall scouring-rush ITIS, 2010
• winter scouring-rush Newmaster & Ragupathy, 2005

Synonyms

• Equisetum affine (Engelmann) Rydberg Christenhusz et al., 2019
• Equisetum hyemale var. affine (Engelmann) A.A. Eaton FNA Ed. Comm., 1993
• Equisetum hyemale var. californicum Milde FNA Ed. Comm., 1993
• Equisetum hyemale var. praealtum (Rafinesque) Clute Christenhusz et al., 2019
• Equisetum hyemale var. pseudohyemale (Farwell) C.V. Morton FNA Ed. Comm., 1993
• Equisetum hyemale var. pumilum A.A. Eaton Christenhusz et al., 2019
• Equisetum hyemale var. robustum (A. Braun) A.A. Eaton Christenhusz et al., 2019
• Equisetum praealtum Rafinesque Christenhusz et al., 2019
• Equisetum praealtum var. affine (Engelmann) M. Broun Christenhusz et al., 2019
• Equisetum robustum A. Braun Christenhusz et al., 2019
• Equisetum robustum var. affine Engelmann FNA Ed. Comm., 1993
• Hippochaete hyemalis var. affinis (Engelmann) S.X.Li & J.Z.Wang Christenhusz et al., 2019
• Hippochaete praealta (Rafinesque) Farwell Christenhusz et al., 2019
• Hippochaete praealta var. affinis (Engelmann) Farwell Christenhusz et al., 2019
• Hippochaete praealta var. pseudohyemalis Farwell IPNI

Distribution

• Map view
• List view

• Native
• Introduced
• Ephemeral
• Excluded
• Extirpated
• Doubtful
• Absent

Classification

Class	Equisetopsida
Subclass	Equisetidae
Order	Equisetales
Family	Equisetaceae
Genus	Equisetum
Subgenus	Equisetum subg. Hippochaete
Species	Equisetum hyemale
Subspecies	Equisetum hyemale subsp. affine

Habit

Herb