Helenium bigelovii
Encyclopedia
The daisylike
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...

 plant Helenium bigelovii is known as Bigelow's sneezeweed. It is a 1 to 3ft-high plant of the "composite" family (sunflower, or aster family) that bears ray flowers that are usually bright yellow in color and disc flowers that are yellow in bloom and then turn dark brown. The flowerheads have a characteristic shape with a very spherical disc and the 14-30 "petals" (the ray flowers) reflexed downward and toothed or lobed at their ends.

Bigelow sneezeweed grows in moist areas such as meadows, marshes, or streamsides. It is found at moderate and higher elevations (3000-10,000ft) in the foothills and mountains of California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

. Cultivars are raised as ornamentals. The species is named for J.M. Bigelow, a plant collector on the United States and Mexican Boundary Survey
United States and Mexican Boundary Survey
The United States and Mexican Boundary Survey set the boundary between the United States and Mexico according to the Treaty of Guadalupe Hidalgo that ended the Mexican-American War. The results of the survey were published in a three-volume work, Report on the United States and Mexican boundary...

in the 1850's.

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