Greek valerian

(Polemonium reptans var. reptans)

Conservation Status
Greek valerian
 
  IUCN Red List

not listed

     
  NatureServe

N5 - Secure

SNR - Unranked

     
  Minnesota

not listed

     
           
Wetland Indicator Status
     
  Great Plains

FAC - Facultative

     
  Midwest

FAC - Facultative

     
  Northcentral & Northeast

FAC - Facultative

     
           
 
Description
 
 

Greek valerian is a 8 to 20 tall, mostly erect, perennial forb that rises on a solitary stem or several loosely clustered or tufted stems from a taproot.

The stems are erect or sprawling, slender, hollow, green or reddish, usually hairless, and branching toward the top.

Basal leaves are on long leaf stalks. Stem leaves are alternate. Lower stem leaves are on short leaf stalks, upper stem leaves are stalkless. The principal leaves are pinnately divided into 7 to 17 leaflets.

The leaflets are stalkless, almost oppositely arranged, elliptic to egg-shaped, ¾ to 1½ long, and about ½ wide. The upper surface is dull green and hairless. The lower surface is silvery-green and hairless. They have 3 prominent veins. The margins are untoothed.

The inflorescences are few-flowered branching clusters at the end of stems and branches and rising from the upper leaf axils. The cluster stalks (peduncles) are hairless and reddish green and are covered with short, appressed hairs.

The flowers are bell-shaped, ½ to long, and about ½ wide. They are on 3 16 to ¼ long stalks, the stalks at least as long as the sepals. There are 5 green sepals, 5 blue petals, and 5 stamens.

The fruit is a rounded, 3-chambered capsule with 1 to 10 seeds per chamber.

 
     
 

Height

 
 

8 to 20

 
     
 

Flower Color

 
 

Blue

 
     
 

Similar Species

 
  Western Jacob’s ladder (Polemonium occidentale ssp. lacustre) flowers in the summer, not the spring. The flower stalks are shorter than the sepals. In Minnesota it is found only in St. Louis County.  
     
 
Habitat
 
 

Moist to moderate moisture. Meadows, woods. Full sun to shade.

 
     
 
Biology
 
 

Flowering

 
 

May to June

 
     
 
Use
 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 24, 28.

 
  1/13/2014      
         
 

Nativity

 
 

Native

 
         
 

Occurrence

 
 

 

 
         
 
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 Magnoliopsida (dicots)  
  Superorder Asteranae  
 

Order

Ericales (heathers, balsams, primroses, and allies)  
 

Family

Polemoniaceae (phlox)  
  Subfamily Polemonioideae  
 

Genus

Polemonium (Jacob’s ladder)  
  Species Polemonium reptans (Greek valerian)  
       
 

Subordinate Taxa

 
       
       
 

Synonyms

 
     
       
 

Common Names

 
 

Greek valerian

Jacob’s ladder

spreading Jacob’s ladder

 
       

 

 

 

 

 

 

 

 

Glossary

Axil

The upper angle where the leaf stalk meets the stem.

 

Peduncle

The stalk of a single flower or flower cluster.

 

Pinnate

Having the leaflets of a compound leaf arranged on opposite sides of a common stalk.

 

Sepal

An outer floral leaf, usually green but sometimes colored, at the base of a flower.

       
Visitor Photos
   

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Kirk Nelson
       

Greek Valerian - Jacob's Ladder

  Greek valerian   Greek valerian
       
       
MinnesotaSeasons.com Photos
   

Inflorescence

  Greek valerian    
       

Flowers

  Greek valerian    
       

Leaves

  Greek valerian    
       
       

 

Camera

     
Slideshows
   
  Polemonium reptans (Greek Valerian)
Allen Chartier
 
  Polemonium reptans (Greek Valerian)  

 

slideshow

       
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Other Videos
 
  Jacob's Ladder (Polemonium reptans) and Midland Shooting Star (Dodecatheon meadia)
PrairieMoonNursery
 
   
 
About

Uploaded on Jun 4, 2010

http://www.priairemoon.com - It's early May at Prairie Moon Nursery and Jacob's Ladder and Midland Shooting Star are in bloom!

   
       

 

Camcorder

         
Visitor Sightings
   

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Kirk Nelson
5/23/2020

Location: Lebanon Hills Regional Park

Greek valerian


     
     
 
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