science education resource

For K-12 Students • Educators • Homeschool Families • Naturalists

Aster (Whorled) or Sharp-leaved Aster

To view these resources with no ads please Login or Subscribe (and help support our site).

Aster acuminatus
Aster (Whorled) or Sharp-leaved Aster


Found on the forest floor and along roadways.


Up to 3' tall - blooms summer to fall. White to light purple flowers with delicate petals often pointed backwards. Long, pointed, toothed leaves are often whorled around stem and larger toward the top of stem. Also called, Sharp-leaved Aster and Mountain Aster.

Taxonomic Features (Traits) for Identification

  • Flower Type: Flower Regular with 7+ petals

  • Flower Color: White
 or light purple
  • Leaf Arrangement: Alternate

  • Plant Type: Wildflower

  • Leaf Type: Oval and toothed

To view these resources with no ads, please Login or Subscribe (and help support our site).

Citing Research References

When you research information you must cite the reference. Citing for websites is different from citing from books, magazines and periodicals. The style of citing shown here is from the MLA Style Citations (Modern Language Association).

When citing a WEBSITE the general format is as follows.
Author Last Name, First Name(s). "Title: Subtitle of Part of Web Page, if appropriate." Title: Subtitle: Section of Page if appropriate. Sponsoring/Publishing Agency, If Given. Additional significant descriptive information. Date of Electronic Publication or other Date, such as Last Updated. Day Month Year of access < URL >.

Here is an example of citing this page:

Amsel, Sheri. "Aster (Whorled) or Sharp-leaved Aster" Exploring Nature Educational Resource ©2005-2023. March 21, 2023
< > has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.