pussy willow

(Salix discolor)

Conservation Status

IUCN Red List

not listed

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

 
pussy willow
 
 
Description

Pussy willow is a widely recognized, small, deciduous shrub or shrubby tree rising. When a shrub it rises on many stems, when a tree it rises on a few trunks. It often forms clumps. In Minnesota mature trees are usually 10 to 20 tall and up to 12 in diameter at breast height, though individuals can reach 27 in height. They typically live 20 to 50 years.

The crown is open and rounded.

The branches are alternate.

The bark on young trees is grayish-brown, tinged with red, and smooth. On mature trees the bark is thin, light brown to gray, shallowly fissured, and scaly.

The twigs are stout, shiny, and dark reddish-brown, with scattered orange dots (lenticels). When young they are hairy, becoming hairless as they age.

The buds are reddish-purple, shiny, egg-shaped, flattened, and taper to a long point. They are covered with a single cap-like scale. The vegetative buds are about ¼ long, the flower buds are about long.

The leaves are alternate, oblong to narrowly elliptic, firm, 2 to 5 long, and ½ to 1½ wide. They are usually less than 5½ times as long as wide. The blade tapers at the base to a to 1 long leaf stalk, and may be either blunt or pointed at the tip. There is often a pair of small, leaf-like appendages (stipules) at the base of the leaf stalk. On vigorous shoots, the stipules can be up to 516 (8 mm) long, but they are more often minute. Young leaves are reddish and hairy. The upper surface of mature leaves is bright green, shiny, and hairless, with raised veins. The underside is whitish and hairless or sparsely hairy. The margin is untoothed or has shallow, irregular teeth, especially above the middle. In the fall the leaves turn yellow.

Male and female flowers are separate trees. Both flowers are cylindrical catkins on a short stalk with tiny, leaf-like bracts at the base of the stalk. When immature they are densely covered with silky hairs. They are fully developed before the leaves appear. The female catkin is ½ to 1 long and greenish with dark brown scales. The male catkin is ¾ to 1½ long, fuzzy, silvery or white with dark brown scales, and has 2 stamens with yellow anthers. The flowers are pollinated by wind.

The fruit is a small, brown, densely hairy, cylindrical, ¼ to ½ long, long-beaked capsule, containing many seeds. The capsules are attached to 2 to 3 long seed catkins.

 

Height

10 to 20

 

Flower Color

 

 

Similar Species

Bebb’s willow (Salix bebbiana) buds are blunt. The leaf upper surface is dull green and wrinkled, not shiny and smooth. The lower surface has whitish hairs and prominent, meshing veins. The margins are somewhat rolled under.

Habitat

Wet. Swamps, wet meadows.

Ecology

Flowering

May to June

 

Pests and Diseases

 

Use

 

Distribution

Distribution Map

 

Sources

2, 3, 4, 5, 7, 8, 24, 28, 29, 30.

7/9/2024    
     

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

Magnoliopsida (flowering plants)

Superorder

Rosanae

Order

Malpighiales (nances, willows, and allies)

Family

Salicaceae (willow)

Subfamily

Salicoideae

Tribe

Saliceae

Genus

Salix (willows)

Subgenus

Vetrix (sallows and osiers)

Section

Cinerella

   

Subordinate Taxa

 

   

Synonyms

Salix ancorifera

Salix conformis

Salix crassa

Salix discolor var. overi

Salix discolor var. prinoides

Salix discolor var. rigidior

Salix fuscata

Salix prinoides

Salix sensitiva

Salix squamata

   

Common Names

large pussy willow

pussy willow

pussy-willow

 

 

 

 

 

 

 

 

 

Glossary

Beak

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

 

Catkin

A slim, cylindrical, drooping cluster of many flowers. The flowers have no petals and are either male or female but not both.

 

Lenticel

A corky, round or stripe-like, usually raised, pore-like opening in bark that allows for gas exchange.

 

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.

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Luciearl

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pussy willow   pussy willow

Plant

     
pussy willow   pussy willow

Inflorescence

     
pussy willow   pussy willow

Female catkins

     
pussy willow   pussy willow

Leaves

     
pussy willow    

Persistent large stipules

 

Camera

Slideshows

American Pussy Willow
Andree Reno Sanborn

American Pussy Willow
About

Salix discolor

 

slideshow

Visitor Videos
 

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Other Videos

Pussy Willows in March with John Latimer
Now Watching KAXE

About

Uploaded on Mar 23, 2010

Did you know there are 18 different species of willow shrubs in MN? Did you know a pussy willow is male OR female? Did you know they come in a variety of colors? Did you know you can make willow whistles? Here's the latest in our continuing series Phenology Videos with John Latimer, this time on Pussy Willow:

 

Camcorder

 

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