white trout lily

(Erythronium albidum)

Conservation Status
white trout lily
 
  IUCN Red List

not listed

     
  NatureServe

N5? - Secure

SNR - Unranked

     
  Minnesota

not listed

     
           
Wetland Indicator Status
     
  Great Plains

FACU - Facultative upland

     
  Midwest

FACU - Facultative upland

     
  Northcentral & Northeast

FACU - Facultative upland

     
           
 
Description
 
 

White trout lily is a 4 to 8 tall, erect, perennial forb rising from a short, vertical, thickened, underground stem (corm). It is usually found in large colonies. Less than 1% of the plants in a colony will flower in any given year.

Most plants are one-leaved and nonflowering. Flowering plants have two leaves. The leaves appear to originate at the base, but they actually originate below ground, about halfway up the underground stem. They are arranged in pairs but are not exactly opposite. They are 3to 8½ long, lance-shaped, untoothed, fleshy, green, flat, mottled or spotted with silver, and covered with a whitish, waxy coating.

The inflorescence is a solitary flower hanging downward at the end of a stout, nodding stem. The stem is 4 to 6 tall, hairless and leafless.

The flower has is nickle-size or larger. It has 3 petals and 3 identical-looking sepals, collectively called tepals. The tepals are 1 to 2 long, lance-shaped, white or bluish-white, and yellow at the base on the inside. They flare outward, extending nearly to the horizontal, eventually curving backward. The anthers and filaments are yellow.

The fruit is an oblong to egg-shaped, 3-celled capsule, to ¾ wide. It is held erect at maturity.

 
     
 

Height

 
 

4 to 8

 
     
 

Flower Color

 
 

White or bluish-white

 
     
 

Similar Species

 
 

Minnesota dwarf trout lily (Erythronium propullans) is a rare, much smaller plant, 1½ to 4 in height. The leaves are 1½ to 5 long. The tepals are about ½ long. The filaments are white. Almost all of the plants in a colony will flower each year.

Yellow trout lily (Erythronium americanum ssp. americanum) has yellow flowers. The fruit is held off the ground horizontally.

 
     
 
Habitat
 
 

Moist. Woods, forests.

 
     
 
Biology
 
 

Flowering

 
  Apri to May  
     
 

Spring Ephemeral

 
 

White trout lily is a true spring ephemeral. All of the parts of the plant that are above ground will have disappeared by the time the forest canopy has developed in June.

 
     
 
Use
 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 28.

 
  12/31/2011      
         
 

Nativity

 
 

Native

 
         
 

Occurrence

 
 

Common

 
         
 
Taxonomy
 
  Kingdom Plantae (green algae and land plants)  
  Subkingdom Viridiplantae (green plants)  
  Infrakingdom Streptophyta (land plants and green algae)  
  Superdivision Embryophyta (land plants)  
  Division Tracheophyta (vascular plants)  
  Subdivision Spermatophytina (seed plants)  
  Class Liliopsida (monocots)  
 

Order

Liliales (lilies, supplejacks, and allies)  
 

Family

Liliaceae (lilies)  
  Subfamily Lilioideae  
  Tribe Tulipeae  
 

Genus

Erythronium (fawn lily)  
       
 

Some taxonomists place the genus Erythronium with the genus Tulipa and six other genera in the tribe Lilieae. Others separate Erythronium and Tulipa into the tribe Tulipeae. GRIN follows the latter course.

 
       
 

Synonyms

 
 

 

 
       
 

Common Names

 
 

blonde-Lillian

small white fawnlily

white dog-tooth-violet

white fawnlily

white trout lily

 
       

 

 

 

 

 

 

 

 

Glossary

Filament

On plants: The thread-like stalk of a stamen which supports the anther. On Lepidoptera: One of a pair of long, thin, fleshy extensions extending from the thorax, and sometimes also from the abdomen, of a caterpillar.

 

Sympatric

Referring to closely related species that have ranges that overlap but which do not interbreed.

 

Tepal

Refers to both the petals and the sepals of a flower when they are similar in appearance and difficult to tell apart. Tepals are common in lilies and tulips.

       
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Habitat

  white trout lily    
       

Plant

  white trout lily   white trout lily
       
  white trout lily   white trout lily
       

Flower

  white trout lily   white trout lily
       
  white trout lily    
       

Leaf

  white trout lily    
       

Fruit

  white trout lily   white trout lily
       
       

 

Camera

     
Slideshows
   
  Erythronium albidum (White Trout Lily)
Allen Chartier
 
  Erythronium albidum (White Trout Lily)  

 

slideshow

       
Visitor Videos
       

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Other Videos
 
  MyNature Apps; Identifying Trout Lily, Erythronium albidum
MyNatureApps
 
   
 
About

Uploaded on Apr 29, 2011

Identifying a Trout Lily, Erythronium albidum. Brought to you by MyNature Apps www.mynaturesite.com

   
       
  Trout Lily Part 3
NewCultureEarth
 
   
 
About

Published on Mar 28, 2012

This video was uploaded from an Android phone.

   
       

 

Camcorder


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