Elderberry Rust

(Puccinia bolleyana)

               
Conservation Status

IUCN Red List

not listed

Elderberry Rust

NatureServe

not listed

Minnesota

not listed

Occurrence

Unknown

Season

Early spring to fall

Habitat/Hosts

American elderberry and sedges

 
Identification

Elderberry Rust is a fungus that affects American elderberry and at least twelve species of sedge. It occurs in eastern United States east of the Great Plains and in Ontario. There are only six recorded sightings of this rust in Minnesota. All of them are dated prior to 1940 and are in Cook, Goodhue, and Houston Counties. However, rusts on plants are often overlooked and seldom reported. The scarcity of records for Elderberry Rust may not reflect its actual abundance.

Elderberry Rust first appears in early spring as small, bright orange pustules on the leaflets and petioles of American elderberry. In May it develops large bright orange pustules that causes deformation of the plant’s leaves, petioles, and stems. In the summer, spores are wind-blown to the alternate hosts, twelve species of sedges: Frank's sedge (C. frankii), Bebb's sedge (C. bebbii), button sedge (C. bullata), longhair or bottlebrush sedge (C. comosa), fringed sedge (C. crinita), raven or crow-foot sedge (C. crus-corvi), greater bladder sedge (C. intumescens), false hop sedge (C. lupuliformis), hop sedge (C. lupulina), shallow or lurid sedge (C. lurida), blunt broom sedge (C. tribuloides), and hairy fruited sedge (C. trichocarpa). Infection on the sedge plant appears as necrotic lesions on the leaves.

 
Similar
Species

 

 
Distribution Distribution Map  

Sources: 4, 7, 26, 29, 30, 77.

 
Comments

Two Scientific Names?
Elderberry Rust was published as Aecidium sambuci in 1822, as Puccinia bolleyana in 1891, and as Puccinia sambuci in 1903. The latter two names are still in use.

 
Taxonomy

Division:

Basidiomycota (club fungi)

 

Subdivision:

Pucciniomycotina

 

Class:

???

 

Subclass:

Pucciniomycetes

 

Order:

Pucciniales (rust fungi)

 

Family:

Pucciniaceae (a family of rust fungi)

 

Genus:

Puccinia

 
Synonyms

Aecidium sambuci

Dicaeoma bolleyanum

Puccinia atkinsoniana var. bolleyana

Puccinia sambuci

 
Common
Names

Elderberry Rust

 

 

 

 

 

 

       
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  Elderberry Rust   Elderberry Rust
       
  Elderberry Rust    
       

 

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Other Videos
 
  Puccinia Life Cycle
Pests, Weeds & Problems
 
   
 
About

May 19, 2018

Puccinia Life Cycle. Puccinia is a genus of fungi that cause a serious plant disease commonly called rust; the genus contains thousands of species, and the various species infect a wide range of host plants. The life cycle of the fungi is complex, typically involving five kinds of spores and two unrelated types of host plants. Because Puccinia...

Table of contents Puccinia Life Cycle
The Beginning 00:49
The Alternate Host 01:34
Reinfection without an Alternate Host 02:33
Widespread Infection 03:17
Symptoms and Control 03:55

   
       

 

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Created: 11/29/2019

Last Updated:

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