MMuhlenberg College


Graver Home

 
Virtual Tour
Collections
 


Gentiana clausa

Common Name of Species: Bottle Gentian, Closed Gentian 
Family:
Gentianaceae  


Entry Author:  C. Friedl, Muhlenberg College
Key Characteristics: 
Bottle Gentian can be identified by the deep bluish/purple, cylindrical flower heads that never open and grow in clusters, even in full maturity.
Leaves: 
Leaves can grow to be 4 inches long, and can be ovate or lance shaped.
Flowers: 
Dark bluish-purple petals that stays closed.  Grow in clusters and are 1-1 inches long.
Stem: 
Stems are smooth and erect.
Height:  1-2 feet tall.
Branching Pattern of Leaves: 
Leaves form a whorl shape below flowers, and then are opposite further below that.
Conditions/Habitat: 
Grows in moist thickets and meadows. 
Range: Can be found South of Canada to Virginia, west to Nebraska and Missouri and north to North Dakota.
  
References:
Niering, W.A., Olmstead, N.C, & Thieret, J.W. (2001). National Audubon Society Field Guide to North American Wildflowers Eastern Region (Revised Edition).  New York: Random House Inc.

Newcomb, Lawrence (1977).  Newcomb’s Wildflower Guide.  New York: Little, Brown.
     

McKenny, M. & Peterson R.T. (1996). Peterson Field Guides: Wildflowers Northeastern/ North-central North America. New York: Houghton Mifflin.

USDA, NRCS (2004). Plants Database, Version 3.05 (http://plants.usda.gov).  National Plant Data Center, Baton Rouge, LA 70874 USA.

This page was created by: C. Friedl, Muhlenberg College
Last updated 12/15/05