silvery cinquefoil

(Potentilla argentea)

               
Conservation Status

IUCN Red List

not yet assessed

silvery cinquefoil

NatureServe

NNA - Not applicable

SNA - Not applicable

Minnesota

not listed

Wetland
Indicator
Status

Great Plains

FACU - Facultative upland

Midwest

FACU - Facultative upland

Northcentral & Northeast

FACU - Facultative upland

Nativity

Native to Europe and Asia. Introduced and naturalized in North America.

 
Occurrence

Common

 
Habitat

Dry. Disturbed sites.

 
Flowering

June to September

     
Flower Color

Yellow

     
Height

4 to 20

     

Identification

This is a 4 to 20 tall, erect, perennial forb that rises on usually several stems from a robust root system.

The stems are erect or ascending, stout, freely branched, reddish, and covered with two kinds of hairs. They are densely covered with short, white, soft, matted, woolly hairs (tomentose). They are also sparsely covered with long, white, soft, unmatted, shaggy hairs.

Basal leaves are on long, tomentose stalks. The are ¾ to 4 long including the leaf stalk, and are palmately divided into 5 leaflets. The leaflets are to 2 long, though usually no more than 1¼ long, and 3 16 to wide. They are narrowly inversely lance-shaped or narrowly inversely egg-shaped with the attachment at the narrow end. The base is wedge-shaped, triangular, and tapers to the leaf stalk. The upper surface is green and covered with long, soft, straight, appressed hairs. The lower surface is densely white tomentose. Neither surface has glandular hairs. The margins are untoothed below the middle and have 2 to 5 teeth above the middle. The teeth are linear or narrowly oblong and cut of the way to the midrib—they could be considered secondary lobes. The margins of these teeth/lobes are rolled backward toward the underside.

Stem leaves are many, alternate, and similar to the basal leaves, but with leaf stalks getting progressively shorter as they ascend the stem. Upper stem leaves are stalkless. At the base of the leaf stalks is a pair of small, leaf-like appendages (stipules). The upper side of the stipule is green, the lower side white tomentose. They are unlobed, pointed at the tip, and may have 2 or 3 deeply cut teeth on each side near the tip.

The inflorescence is a loose, open, branched cluster of many flowers at the end of the stem.

The flowers are ¼ to wide. They are borne on to 1 long, tomentose flower stalks. The 5 petals are yellow, inversely egg-shaped, notched at the tip, and tapering to a narrow, wedge-shaped base. The 5 sepals are green, shorter than the petals, and alternate with the petals. The 5 bractlets are shorter than the sepals when the flower is fully open. They alternate with the sepals and are hidden below the petals when the flower is viewed from above. There are 20 stamens with yellow anthers. The style is visibly thickened at the base.

The fruit is an achene.

 
Similar
Species

Tall cinquefoil (Drymocallis arguta) stems are erect and unbranched below the inflorescence. The leaves are pinnately divided into 7, 9, or 11 leaflets. The petals are yellowish-white, cream colored, or nearly white.


Distribution Distribution Map   Sources: 2, 3, 4, 5, 7, 22, 28.

Comments

 


Taxonomy

Family:

Rosaceae (rose)

 

Subfamily:

Rosoideae

 

Tribe:

Potentilleae

 

Subtribe:

Potentillinae

 
Synonyms

Potentilla argentea var. argentea

 
Common
Names

hoary cinquefoil

silverleaf cinquefoil

silvery cinquefoil

silvery five-fingers


 

 

 

 

 

 

 

 

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.

 

bract

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

 

bractlet

A small, often secondary bract within an inflorescence; a bract that is borne on a petiole instead of subtending it.

 

glandular hairs

Hairs spread over aerial vegetation that secrete essential oils. The oils act to protect against herbivores and pathogens or, when on a flower part, attract pollinators. The hairs have a sticky or oily feel.

 

palmately divided

Similar to a hand. Having more than three lobes that radiate from a single point at the base of the leaf.

 

sepal

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

 

stipule

A small, leaf-like, scale-like, glandular, or rarely spiny appendage found at the base of a leaf stalk, usually occurring in pairs and usually dropping soon.

 

tomentose

Densely covered with short, soft, matted or tangled, woolly, usually white or silvery hairs.

       

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Inflorescence

  silvery cinquefoil    
       

Flower

  silvery cinquefoil    
       

Leaves

  silvery cinquefoil   silvery cinquefoil
       

Stem

  silvery cinquefoil    
       
       

 

Camera

     

Slideshows

   
  Silvery Cinquefoil (Potentilla argentea)
Andree Reno Sanborn
 
  Silvery Cinquefoil (Potentilla argentea)  
     
  Control Potentilla Argentea In Yards
Helper How To
 
   
 
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Published on Sep 11, 2013

 

 
     

 

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Other Videos

 
  Hoary Cinquefoil (Potentilla argentea) - 2014-06-15
W3stlander
 
   
 
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Published on Jun 23, 2014

Hoary Cinquefoil (Potentilla argentea) or Silver-Leaf Cinquefoil, is a species of cinquefoil

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De Viltganzerik (Potentilla argentea) is een in België en Nederland in het wild voorkomende plant in het geslacht Ganzerik. In oudere boeken wordt de plant ook wel zilverganzerik genoemd, wat de vertaling is van de botanische naam, en wat ook overeenkomt met de Duitse naam Silber-Fingerkraut en het Franse Potentille argentée. In Friesland wordt de plant Wollich sulverblêd genoemd.

 
     
  Floare galbena de primavara, potentilla argentea subsp. argentea, scrantitoare
Adrian Manolache
 
   
 
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Published on Jun 6, 2014

 

 
     

 

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