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Holocarpha obconica
San Joaquin tarweed Aster Family
Holocarpha obconica Asteraceae
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common name
  San Joaquin tarweed
accepted scientific name
  Holocarpha obconica (J.C. Clausen & D.D. Keck) D.D. Keck
rules for finding collection records
  Holocarpha obconica (113)
family name
  Asteraceae
Image Author: ©2011 Zoya Akulova
Image License: CC BY-NC
Image Source Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color
Flower size is about 0.5 inches
Number of ray petals: 4 to 9
Leaf: Alternate
Plant Observed beginning of April thru 2nd week of November
Endemic to California

How Likely at this Location (12%)
Name Match (100%)
Plant Showiness (45%)
Links to Plant Photos
Cal Photos (18)
base map where plant found

Grassland
Disturbed
Salt Marsh
Riparian
Forest
grid lines base