Oregon Flora Image Project
Equisetum telmateia Ehrh.  var. braunii (Milde) R. L. Hauke giant horsetail - native
Equisetaceae

Click on an image for a larger version. All images Gerald D. Carr unless otherwise noted.

In this species, ephemeral, unbranched, non-green shoots produce terminal spore-bearing cones in early spring; the highly branched, sterile green shoots persist through the growing season.  Rarely, as seen in the last two images, the green shoots may produce rudimentary terminal cones.

McDowell Falls County Park, Majestic Falls, N44.54457, W123.45289, Linn Co., OR, 5/7/2007 McDowell Falls County Park, Majestic Falls, N44.54457, W123.45289, Linn Co., OR, 5/7/2007 McDowell Falls County Park, Majestic Falls, N44.54457, W123.45289, Linn Co., OR, 5/7/2007
McDowell Falls County Park, Majestic Falls, N44.54457, W123.45289, Linn Co., OR, 5/7/2007 McDowell Falls County Park, Majestic Falls, N44.54457, W123.45289, Linn Co., OR, 5/7/2007 vic. Newport, Lincoln Co., OR, 5/20/2002 vic. Newport, Lincoln Co., OR, 5/20/2002
  Along North River Rd., ca. 2 mi. E of jct. with Pleasant Valley Rd., NE of Sweet Home, 560 ft. elev.,N44.42020, W122.71439, Linn Co., 6/7/2015  [Halse 9425] Along North River Rd., ca. 2 mi. E of jct. with Pleasant Valley Rd., NE of Sweet Home, 560 ft. elev.,N44.42020, W122.71439, Linn Co., 6/7/2015  [Halse 9425]  
   

 


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