D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp


Equisetum pratense . Ehrh
SHADY HORSETAIL
Allostelites pratense (Ehrh) Börner; Equisetum drummondii Hook; Equisetum umbrosum G Mey ex Willd

Life   Plantae   Pteridophyta   Equisetaceae   Equisetum

Equisetum pratense, fertile-strobilus
© George Yatskievych, 2006-2011 · 1
Equisetum pratense, fertile-strobilus

Click on map for details about points.

Links
  • Missouri Botanical Garden

  • We parsed the following live from the Web into this page. Such content is managed by its original site and not cached on Discover Life. Please send feedback and corrections directly to the source. See original regarding copyrights and terms of use.
  • Flora of North America

80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on images to enlarge.
Equisetum pratense, entire
© George Yatskievych, 2006-2011 · 1
Equisetum pratense, entire
Equisetum pratense, fertile-sheath
© George Yatskievych, 2006-2011 · 1
Equisetum pratense, fertile-sheath

Equisetum pratense, veg branch
© George Yatskievych, 2006-2011 · 1
Equisetum pratense, veg branch
Equisetum pratense, veg entire
© George Yatskievych, 2006-2011 · 1
Equisetum pratense, veg entire

Equisetum pratense
© George Yatskievych, 2003 · 1
Equisetum pratense
go to Discover Life's Facebook group

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
 
All Floras       Advanced Search
FNA Vol. 2 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 2 | Equisetaceae | Equisetum

7. Equisetum pratense Ehrhart, Hannover. Mag. 22: 138. 1784.

Meadow horsetail, prêle des prés

Aerial stems dimorphic; vegetative stems green, branched, 16--50 cm; hollow center 1/6--1/3 stem diam. Sheaths somewhat elongate, 3--5 × 2--4 mm; teeth 8--18, narrow, 1.5--4 mm, centers dark and margins white. Branches in regular whorls, horizontal to drooping, solid; ridges 3; valleys channeled; 1st internode of each branch equal to or longer than subtending stem sheath; sheath teeth deltate. Fertile stems brown, with stomates, initially unbranched, persisting and becoming branched and green after spore discharge.

Cones maturing in late spring. Meadows, wet woodlands; 0--2000 m; Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon; Alaska, Conn., Ill., Iowa, Maine, Mass., Mich., Minn., N.H., N.Y., N.Dak., Vt., Wis.; n Eurasia to ne China, Japan in Hokkaido.

Updated: 2018-09-24 17:47:26 gmt
Discover Life | Top
© Designed by The Polistes Corporation