Equisetum x mackaii (Newm.) Brichan

Synonyms	Equisetum trachyodon (A. Braun) W.D.J. Koch Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr var. jesupii A.A. Eat.
Lower taxa	none
Origin	native
Growth habit	forb/herb
Habitat	riverbanks and lake shores, marshes
Range	one site in Sussex County
Frequency	rare
Rank	not ranked
Status	none
Wetland status	US: FACW+; Northeastern Region: NI
Reproductive parts present	sporophylls, which bear sterile spores, present in summer
Comments	This plant is a hybrid of Equisetum hyemale and E. variegatum.

Herbarium records: Chrysler Herbarium at Rutgers University (CHRB), New York Botanical Garden (NY).
Flora of North America Editorial Committee. 1993. Flora of North America North of Mexico, vol. 2. Oxford University Press, New York, N.Y.
Hough, M.Y. 1983. New Jersey wild plants. Harmony Press, Harmony, N.J.
Montgomery, J.D., and D.E. Fairbrothers. 1985. New Jersey ferns and fern-allies. Rutgers University Press, New Brunswick, N.J.
NatureServe. 2006. NatureServe explorer: an online encyclopedia of life. Version 4.7. 10 March 2006. <http://www.natureserve.org/explorer>.
U.S. Department of Agriculture and Natural Resources Conservation Service. 2006. The PLANTS database. 29 August 2006. <http://plants.usda.gov>.

Species page by Gerry Moore and Janet Novak. © 2006 by the Flora of New Jersey Project. Last updated January 14, 2008.
Hosted by Rutgers, the State University of New Jersey in collaboration with the Chrysler Herbarium.

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