Lindley’s aster

(Symphyotrichum ciliolatum)

Conservation Status
Lindley’s aster
  IUCN Red List

not listed

     
  NatureServe

NNR - Unranked

SNR - Unranked

     
  Minnesota

not listed

     
           
           
 
Description
 
 

Lindley’s aster is 8 to 48 tall, erect, perennial forb that rises on 1 to 3 or more clustered stems from a long rhizome and sometimes also a branched caudex. It often forms colonies or dense tufts.

The stems are erect and straight or somewhat zigzagged. They are almost hairless or sparsely hairy below the inflorescence, sparsely hairy in the inflorescence.

Basal leaves are on long, slightly winged leaf stalks. The blades are thin, egg-shaped, usually 1½ to 4¾ long, sometimes longer, and to 2¾ wide. They are usually shallowly heart-shaped, sometimes rounded, at the base, and taper to a point at the tip with straight on concave sides along the tip. The upper surface is hairless or rough to the touch due to the presence of short, stiff hairs. The lower surface is usually densely hairy along the midvein, otherwise sparsely hairy to almost hairless. The margins are coarsely toothed with sharp, forward-pointing teeth. Basal leaves are usually withered at flowering time.

Stem leaves are alternate. Lower stem leaves are on long, winged leaf stalks. The blades are thin, egg-shaped, lance-shaped, or inversely lance-shaped, 2 to 6 long, and ¾ to 2 wide. They are usually shallowly heart-shaped, sometimes wedge-shaped, at the base, and otherwise similar to basal leaves. Lower stem leaves are often withered at flowering time. Stem leaves become gradually smaller, less toothed, and shorter-stalked as they ascend the stem. Upper stem leaves are on short, widely winged, leaf stalks. The blades may be egg lance-shaped, narrowly lance-shaped, or linear, ¾ to 3 long, and 3 16 to 1 wide. They are wedge-shaped at the base and sometimes somewhat clasp the stem. The margins are minutely toothed. They are otherwise similar to lower stem leaves. The uppermost leaves are stalkless and untoothed.

The inflorescence is an open, branched cluster (panicle) at the end of the stem. The branches of the panicle are ascending. There are usually 13 to 50 flower heads, rarely more than 100. The flower heads are on 1 16 to long stalks.

Each flower head is 1 to 1½ in diameter. The whorl of bracts at the base of the flower head are arranged in 4 or 5 overlapping series and form a bell-shaped, 3 16 to ¼ long cup (involucre). The involucral bracts are usually hairless but sometimes have a fringe of hairs on the margin. There are 14 to 20 pale to deep blue or bluish purple ray florets and 14 to 25 disk florets. The disk florets are yellow at first, eventually becoming reddish-purple.

The fruit is a dry achene (cypsela) with white to pinkish bristles attached.

 
     
 

Height

 
 

8 to 48

 
     
 

Flower Color

 
 

Pale to deep blue or bluish purple

 
     
 

Similar Species

 
 

 

 
     
 
Habitat
 
 

Edges and openings of woods and forests, thickets, streambanks, trails, roadsides.

 
     
 
Biology
 
 

Flowering

 
 

Late July to October

 
     
 
Use
 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 28, 30.

 
  3/20/2021      
         
 

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

Asterales (sunflowers, bellflowers, fanflowers, and allies)  
 

Family

Asteraceae (sunflowers, daisies, asters, and allies)  
  Subfamily Asteroideae  
  Supertribe Asterodae  
  Tribe Astereae (asters and allies)  
  Genus Symphyotrichum (aster)  
  Subgenus Symphyotrichum  
  Section Symphyotrichum  
       
 

This and other asters were formerly place in the genus Aster. That genus was problematic, in that it did not include just one common ancestor with all of its lineal descendants and no others – it was not monophyletic. In 1994, the genus Symphyotrichum was resurrected to include most North American asters formerly in the genus Aster.

 
       
 

Subordinate Taxa

 
 

 

 
       
 

Synonyms

 
 

Aster ciliolatus

Aster ciliolatus var. ciliolatus

Aster ciliolatus var. comatus

Aster ciliolatus var. wilsonii

Aster foliaceus var. subgeminatus

Aster lindleyanus

Aster saundersii

Aster wilsonii

Symphyotrichum ciliolatum var. comatum

Symphyotrichum ciliolatum var. wilsonii

 
       
 

Common Names

 
 

ciliated aster

fringed blue aster

Lindley’s aster

northern heart-leaf aster

northern heart-leaved aster

 
       

 

 

 

 

 

Glossary

Caudex

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

 

Clasping

Describing a leaf that wholly or partly surrounds the stem but does not fuse at the base.

 

Cypsela

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 from the wall of the inferior ovary and also from other tissues derived from the receptacle or hypanthium, does not split open at maturity, but relies on decay or predation to release the contents.

 

Involucre

A whorl of bracts beneath or surrounding a flower or flower cluster.

 

Linear

Long, straight, and narrow, with more or less parallel sides, like a blade of grass.

 

Panicle

A pyramidal inflorescence with a main stem and branches. Flowers on the lower, longer branches mature earlier than those on the shorter, upper ones.

 

Rhizome

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

       
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  Lindley’s aster    
       

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  Lindley’s aster    
       

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