- Equisetum laevigatum
Taxobox
name = "Equisetum laevigatum"
image_width = 240px
regnum =Plant ae
divisio =Pteridophyta
classis =Equisetopsida
ordo =Equisetales
familia =Equisetaceae
genus = "Equisetum "
species = "E. laevigatum"
binomial = "Equisetum laevigatum"
binomial_authority = A. Braun
synonym = "Equisetum funstonii"
"Equisetum kansanum"
"Hippochaete laevigata""Equisetum laevigatum" is a species of horsetail known by the common names smooth scouring rush and smooth horsetail. This plant is native to much of North America except for northern Canada and southern Mexico. It is usually found in moist areas in sandy and gravelly substrates. It may be annual or perennial. It grows narrow green stems sometimes reaching heights exceeding 1.5 meters. The leaves at the nodes are small, scale-like brownish sheaths and there are occasionally small, spindly branches. The stems are topped with rounded cone-shaped sporangia.
External links
* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?46,47,50 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=EQLA USDA Plants Profile]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Equisetum+laevigatum Photo gallery]
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