|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Equisetaceae||View Description||Dichotomous Key|
|Genus: Equisetum||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Equisetum hyemale L. subsp. affine (Engelm.) Calder & Roy L. Taylor
Stem: perennial herb, of 1 kind, 60--210 cm, green, scabrous; sheath 7--17 mm, +- as long as wide, generally with 2 dark bands, 1 at base, 1 at tip, teeth 22--50, generally deciduous; branches 0. Sporangia: cone tip pointed; spores green, spheric.
Ecology: Streams, moist, sandy, gravelly areas; Elevation: < 2500 m. Bioregional Distribution: NCo, KR, NCoRH, NCoRO, CaR, SN (exc Teh), GV, CW (exc SCoRI), SW (exc s ChI), Wrn, SNE, D; Distribution Outside California: North America, Mexico, Guatemala. Note: 1 other subsp., in Europe, Asia.
Synonyms: Equisetum hyemale var. californicum Milde; Equisetum hyemale var. robustum (A. Braun) A.A. Eaton
eFlora Treatment Author: Robert E. Preston & Richard L. Hauke
Jepson Online Interchange
Previous taxon: Equisetum ×ferrissii
Next taxon: Equisetum laevigatum
Citation for this treatment: Robert E. Preston & Richard L. Hauke 2017. Equisetum hyemale subsp. affine, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=50315, accessed on February 23, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 23, 2017.