Host an Event Volunteer Join Tickets

Support the plant database you love!


Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or choose a plant family:
Symphyotrichum prenanthoides (Crookedstem aster)
Reveal, James L.

Symphyotrichum prenanthoides

Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L. Nesom

Crookedstem Aster, Crooked-stem Aster

Asteraceae (Aster Family)

Synonym(s): Aster prenanthoides

USDA Symbol: SYPR6

USDA Native Status: L48 (N), CAN (N)

Listed as a threatened species in Canada by SARA (Species at Risk Act). Also classified as threatened in the US in the state of Massachusetts and as of special concern in the state of Connecticut. Found along streams draining into Lake Erie in southwestern Ontario,, east to New York and Massachusetts, south to North Carolina and Tennessee, and west to Minnesota and Iowa.


From the Image Gallery

22 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf: Green

Bloom Information

Bloom Color: Blue
Bloom Time: Aug , Sep , Oct


USA: CT , DC , DE , IA , IL , IN , KY , MA , MD , MI , MN , NC , NJ , NY , OH , PA , TN , VA , WI , WV
Canada: ON
Native Habitat: Forest Edge,Riparian

Growing Conditions

Water Use: Medium
Light Requirement: Part Shade , Shade
CaCO3 Tolerance: Low
Soil Description: Loam


Conspicuous Flowers: yes

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Mt. Cuba Center - Hockessin, DE

Additional resources

USDA: Find Symphyotrichum prenanthoides in USDA Plants
FNA: Find Symphyotrichum prenanthoides in the Flora of North America (if available)
Google: Search Google for Symphyotrichum prenanthoides


Record Modified: 2019-12-20
Research By: TWC Staff

Go back