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Tonestus lyallii
Lyall's goldenweed Aster Family
Tonestus lyallii Asteraceae
common names
  Lyall's goldenweed
  Lyall's serpentweed
accepted scientific name
  Tonestus lyallii (A. Gray) A. Nelson
rules for finding collection records
  Haplopappus lyallii (102)
  Tonestus lyallii (482)
family name
Image Author: ©2011 Daniel Mosquin and the UBC Botanical Garden
Image License: CC BY-NC
Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color
Flower size is 1. to 2. inches
Number of ray petals: 13 to 35
Leaf: Alternate, Basal
Plant Observed 3rd week of June thru 3rd week of September

How Likely at this Location (21%)
Name Match (100%)
Plant Showiness (63%)
Links to Plant Photos
Paul Slichter (12)
Botany Photo of the Day (1)
Adam Schneider (1)
base map where plant found
mag select

grid lines base