USGS - science for a changing world

Northern Prairie Wildlife Research Center

  Home About NPWRC Our Science Staff Employment Contacts Common Questions About the Site

Aquatic and Wetland Vascular Plants of the Northern Great Plains

54. Juncaginaceae, the Arrow-grass Family

1. Triglochin L. -- Arrow-grass

3. Triglochin palustris L.


Small, slender plants 1.5-4 dm tall. Leaves erect, terete, 1/2 to 3/4 the length of the plant, very slender, 0.5-2 mm wide; ligules 2-lobed, 0.5-1.5 mm long. Racemes loosely flowered, 10-25 cm long; pedicels 2-5 mm long. Flowers small, 1-2 mm across; tepals 1-2 mm long; carpels 3, stigmas 3. Fruits linear-clavate, 5-8 mm long, ca. 1 mm thick, splitting upward from the base into 3 elongate segments, the fruit axis 3-winged. Late Jun--Sep. Springs, fens and seepage areas, often where alkaline or saline; occasional in ND and ne MT, uncommon s; (Circumboreal, in N.Amer. s to ME, PA, IL, IA, NE, CO, ID and CA; also S.Amer.).
GIF- Distribution Map

Map key


Previous Section -- Triglochin maritima L.
Return to Family -- Juncaginaceae - The Arrow-grass Family

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/plants/vascplnt/species/tpal.htm
Page Contact Information: Webmaster
Page Last Modified: Saturday, 02-Feb-2013 06:48:03 EST
Sioux Falls, SD [sdww54]