Coreopsis hamiltonii explained

Coreopsis hamiltonii, the Mt. Hamilton coreopsis, is a rare California species of Coreopsis in the family Asteraceae. It is found only in a small region including Mount Hamilton and the Diablo Range in the southwestern San Francisco Bay Area (Alameda, Santa Clara, and Stanislaus Counties).^{[1] [2] [3]}

Description

Coreopsis hamiltonii typically grows 10cm-20cmcm (00inches-10inchescm) tall or sometimes taller when in bloom. The foliage is low growing, producing bright golden yellow colored flower heads and red purplish tinted peduncles. The foliage is deeply cut with a thin ferny shape.^[4]

It can be found blooming from March to May in California, where plants are found growing from 600m-1300mm (2,000feet-4,300feetm) above sea level.^[5]

External links

• Jepson Manual Treatment: Coreopsis hamiltonii
• United States Department of California Plants Profile
• Coreopsis hamiltonii — University of California Calphotos Photo gallery

Notes and References

1. http://cnps.web.aplus.net/cgi-bin/inv/inventory.cgi/Show?_id=coreopsis_hamiltonii California Native Plant Society Rare Plants Profile
2. http://bonap.net/MapGallery/County/Leptosyne%20hamiltonii.png Biota of North America Program 2014 county distribution map
3. http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=10953 Calflora taxon report, University of California, Leptosyne hamiltonii Elmer, Mt. Hamilton coreopsis
4. https://www.biodiversitylibrary.org/page/29957127#page/446/mode/1up Elmer, Adolph Daniel Edward 1906. Botanical Gazette 41(5): 323–324
5. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066423 Flora of North America, Coreopsis hamiltonii