Canada anemone

(Anemone canadensis)

               
Conservation Status

IUCN Red List

not yet assessed

Canada anemone

NatureServe

N5? - Secure

SNR - Unranked

Minnesota

not listed

Wetland
Indicator
Status

Great Plains

FACW - Facultative wetland

Midwest

FACW - Facultative wetland

Northcentral & Northeast

FACW - Facultative wetland

Nativity

Native

Occurrence

Common

Habitat

Wet to moderate moisture. Meadows, prairies, lake shores, streamsides. Full to partial sun.

Flowering

May to August

     
Flower Color

White

     
Height

8 to 32

     

Identification

This is an erect, perennial, 8 to 32 tall forb. It rises from the top of a persistent woody base (caudex) of an aerial shoot. The caudices rise from a node at or near the end of an ascending to horizontal, underground stem (rhizome).

Each plant produces a whorl of 1 to 5 basal leaves and a flowering stem.

Basal leaves are on 3 to 8½ long leaf stalks (petioles). The petioles are light green, round in cross section, and hairy. The leaf blades are circular in outline, 1½ to 4 long, and 2 to 6 wide. They are deeply divided into 3 primary lobes. The lateral two lobes are deeply divided into two secondary lobes. The terminal primary lobe and the lateral secondary lobes are lance-shaped or inversely lance-shaped, and to 13 16wide. The upper surface is medium to dark green and is sparsely covered with straight, silky, somewhat appressed hairs. The lower surface is pale green and sparsely to moderately hairy. The margins of each lobe are undivided and untoothed near the base, toothed with sharp, forward pointing teeth and shallowly to deeply cut on the terminal ½ to .

A single flowering stem rises from the caudex at the middle of the whorl of basal leaves. The stem is erect, light green, unbranched, and round in cross section. Below the middle it is sparsely covered with fine short hairs (puberulent) and long, soft, shaggy but unmatted hairs (villous). Toward the top it is densely villous. At the top of the flowering stem there is a whorl of 3 leaves.

The stem leaves are stalkless. The leaf blades are inversely triangular in outline, 13 16 to 4 long, and otherwise similar to basal leaves.

The inflorescence is 1 central and sometimes 1 or 2 lateral flowers rising from the whorl of basal leaves at the end of the stem. Each flower is solitary at the end of a long flower stalk (pedicel). The pedicels are 3 to 4½ long, light green, round in cross section, and hairy. The lateral pedicels, if any, have a pair of leaf-like appendages (bracts). The central pedicel does not.

Each flower is 1 to 1½ in diameter. There are no petals, 4 to 6 (usually 5) petal-like sepals, and 80 to 100 stamens with yellow anthers. The sepals are white, inversely egg-shaped, to ¾ long, and 3 16 to wide.

The infructescence is a dense, globe-shaped or egg-shaped fruiting head.

The fruit is an inversely egg-shaped to ellipse-shaped, to ¼ long , to ¼ wide seed capsule (achene). There is a persistent style (beak) but no tuft of hairs at the end of the achene.

 
Similar
Species

Wood anemone (Anemone quinquefolia var. quinquefolia) is a shorter plant, no more than 8 tall. The leaves on the flowering stalk are stalked. The plant is found in shaded woods, not sunny meadow and prairies.


Distribution Distribution Map   Sources: 2, 3, 4, 5, 7, 24, 28.

Comments

 


Taxonomy

Family:

Ranunculaceae (buttercup)

 

Subfamily:

Ranunculoideae

 

Tribe:

Anemoneae

 
Synonyms

Anemone dichotoma var. canadensis

Anemone pensylvanica

Anemonidium canadense

 
Common
Names

Canada anemone

Canadian anemone

meadow anemone


 

 

 

 

 

 

 

 

 

Glossary

achene

A dry, one-chambered, single-seeded fruit, formed from a single carpel, with the seed attached to the membranous outer layer (wall) only by the seed stalk; the wall, formed entirely from the wall of the superior ovary, does not split open at maturity, but relies on decay or predation to release the contents.

 

beak

A comparatively short and stout, narrow or prolonged tip on a thickened organ, as on some fruits and seeds.

 

bract

Modified leaf at the base of a flower stalk or flower cluster.

 

caudex

A short, thickened, woody, persistent enlargement of the stem, at or below ground level, used for water storage.

 

node

The small swelling of the stem from which one or more leaves, branches, or buds originate.

 

pedicel

In plants: the stalk of a single flower in a cluster of flowers. In Hymenoptera and Araneae: the narrow stalk connecting the thorax to the abdomen.

 

petiole

The stalk of a leaf blade or compound leaf that attaches the leaf blade to the stem.

 

rhizome

A horizontal, usually underground stem. It serves as a reproductive structure, producing roots below and shoots above at the nodes.

 

sepal

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

 

villous

Covered with long, soft, fine, shaggy but unmatted hairs.

       

Visitor Photos

   
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Wayne Rasmussen


  Canada anemone    

       
       
       

MinnesotaSeasons.com Photos

   

Habitat

  Canada anemone   Canada anemone
       
  Canada anemone   Canada anemone
       

Plant

  Canada anemone   Canada anemone
       

Inflorescence

  Canada anemone   Canada anemone
       

Flower

  Canada anemone   Canada anemone
       
  Canada anemone    
       

Leaves

  Canada anemone    
       

Infructescence

  Canada anemone   Canada anemone
       
       

 

Camera

     

Slideshows

   
  Time Lapse--Canada Anemone
typacsk
 
   
 
About

Uploaded on Jun 3, 2009

Time-lapse of Anemone plant growing in Nichols Park, Chicago. Photographed and assembled by Tyler Kerr for a class on prairie ecology.

 
     

 

slideshow

     

Visitor Videos

   
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Other Videos

 
  Canada Anemone (Anemone canadensis)
PrairieMoonNursery
 
   
 
About

Uploaded on Jun 8, 2010

http://www.prairiemoon.com - A lush patch of Canada Anemone; Anemone canadensis at Prairie Moon Nursery.

 
     
  Anemone Canada
raisingmyhand
 
   
 
About

Published on Jul 24, 2013

No description available.

 
     
  John Latimer Phenology Note - Canada Anemone
NowWatchingKAXE
 
   
 
About

Uploaded on Jul 20, 2009

KAXE Phenologist John Latimer talks about Canada Anemone. This is the first of what we hope to be many updates from John about the nature around us. We'll probably get better at it the more we do it...? John Latimer does a weekly Phenology Report every Thursday morning on KAXE.

 
     

 

Camcorder

         

Visitor Sightings

   
Share your sighting of this plant.

Wayne Rasmussen
5/30/2016

Location: Maplewood Nature Center

Canada anemone


David Ayer
6/23/2012

Location: Joseph A. Tauer Prairie SNA


     
     
 

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