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

49. Asteraceae, the Aster Family

2. Aster L. -- Aster

3. Aster junciformis Rydb. -- Rush aster


Slender erect perennial 3-8 dm tall, from slender rhizomes 0.5-1.5(2) mm thick, mostly glabrous except for lines of appressed pubescence decurrent from leaf bases; stem simple below, usually branched above in the inflorescence. Leaves sessile, linear, 4-11 cm long, 2-6 mm wide, acuminate, scabrous on the margin, sometimes slightly clasping at the base. Heads (1) few to several, seldom many, uncrowded, 1.5-2 cm across; involucre 5-7 mm high, the bracts imbricate, often with purplish tips and margins; rays usually 20-50, white to light blue or lavender, 7-15 mm long. Late Jul--Sep. Springs, fens, seepage areas, wet meadows and boggy places, typically where the soil remains saturated all year; occasional from n ND to e SD, less common sw SD and c NE; (Que. to AK, s to NJ, MN, NE, CO, ID and B.C.). A. junceus Ait.
GIF- Distribution Map

Map key


Previous Section -- Aster hesperius A. Gray -- Marsh aster
Return to Family -- Asteraceae - The Aster Family
Next Section -- Aster lucidulus (A. Gray) Wieg.

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/ajun.htm
Page Contact Information: Webmaster
Page Last Modified: Saturday, 02-Feb-2013 06:39:49 EST
Menlo Park, CA [caww54]