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Lyall's aster
Symphyotrichum hendersonii
Lyall's aster Aster Family
Symphyotrichum hendersonii Asteraceae
common names
  Lyall's aster
  Kootenai aster
  Henderson's aster
accepted scientific name
  Symphyotrichum hendersonii (Fernald) G.L. Nesom
rules for finding collection records
  Aster foliaceus lyallii (27)
  Aster hendersonii (7)
  Symphyotrichum hendersonii (60)
family name
Image Author: ©1995 Br. Alfred Brousseau, Saint Mary's College
Image License: Permission to use is granted freely to not-for-profit organizations
Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color color color
Flower size is 0.9 to 1.5 inches
Number of ray petals: 25 to 45
Leaf: Alternate
Plant Observed beginning of July thru 3rd week of September

How Likely at this Location (10%)
Name Match (100%)
Plant Showiness (72%)
Links to Plant Photos
G.D.Carr (7)
Cal Photos (3)
Wikimedia Commons (1)
SEINet (1)
base map where plant found
mag select

Native Plant Status
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native Native
native Not Present

grid lines base