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Mount Hamilton Tickseed
Leptosyne hamiltonii
About Mount Hamilton Tickseed (Leptosyne hamiltonii) 0 Nurseries Carry This Plant Coreopsis hamiltonii, the Mt. Hamilton coreopsis, is a rare California species of tickseeds in sunflower family. 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). Coreopsis hamiltonii typically grows 10-20 centimetres (3. 9-7. 9 in) 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. It can be found blooming from March to May in California, where plants are found growing from 600-1,300 metres (2,000-4,300 ft) above sea level.
Plant Description
Plant Type
Plant Type
Annual herb, Succulent

4 - 7.9 in tall

Flower Color
Flower Color
Yellow, Purple, Red

Wildlife Supported

Butterflies & moths hosted ( 1 likely * ) SHOW ALL

Landscaping Information
Natural Setting
Annual Precipitation: 18.2" - 26.3", Summer Precipitation: 0.28" - 0.38", Coldest Month: 48.2" - 50.4", Hottest Month: 62.6" - 71.0", Humidity: 4.10" - 19.08", Elevation: 1904" - 4122"

Alternative Names
Common Names: Mt. Hamilton Coreopsis

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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