CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record leptosyne_hamiltonii - Thu, Dec. 2, 2021, 07:11 ET b
Leptosyne hamiltonii
common nameMt. Hamilton coreopsis
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life formannual herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (7):
Mississippi Creek (405B) 3712124, Mount Stakes (425C) 3712134, Lick Observatory (426C) 3712136, Isabel Valley (426D) 3712135, Solyo (444D) 3712153, Mendenhall Springs (445C) 3712156, Cedar Mountain (445D) 3712155
quad data info

Counties, states, regions:
Alameda (ALA), Santa Clara (SCL), Stanislaus (STA)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Cismontane woodland (CmWld)(rocky)
blooming period Mar-May  
elevation range550 - 1300 meters
Known only from the Mt. Hamilton Range. See Botanical Gazette 41:323-324 (1906) for original description, and Madroņo 4(7):214-215 (1938) for revised nomenclature.
full nameLeptosyne hamiltonii Elmer
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDAST2L0C0
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Thu, Dec. 2, 2021 from

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