CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record amsinckia_grandiflora - Sun, Dec. 5, 2021, 11:35 ET b
Amsinckia grandiflora
common namelarge-flowered fiddleneck
CalPhotos image
more photos
Charles Webber © 1999 California Academy of Sciences  Follow image link for photo data.
life formannual herb
CA Rare Plant Rank
List 1B.1
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.1: Seriously endangered in California
state rank
S1      ranking system key
global rank
G1     G1: Less than 6 occurrences OR less than 1,000 individuals OR less than 2,000 acres.
Where did the "RED" code go?
CA state listingEndangered  04/82
federal listingEndangered  05/08/85
where found
MAPS - Use v8 link below.

Topographic quads (5):
Tracy (444B) 3712164, Lone Tree Creek (444C) 3712154, Midway (445A) 3712165, Antioch South (464A) 3712187, Tassajara (464D) 3712177
quad data info

Counties, states, regions:
Alameda (ALA), Contra Costa (CCA), San Joaquin (SJQ)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Cismontane woodland (CmWld)
•Valley and foothill grassland (VFGrs)
blooming period (Mar),Apr-May   Months in parentheses are uncommon.
elevation range270 - 550 meters
Reduced by agriculture, development, and grazing; currently threatened by non-native plants and possibly by trampling and altered fire frequency. Recent reintroductions have occurred (444C, 464A, 464D) as part of State and Federal recovery work, but all declining as of 2000. See Botany of California 1:525 (1876) for original description, and Conservation Biology 7(3):510-526 (1993) for population biology.
full nameAmsinckia grandiflora (Gray) Greene
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  AMGR3 Element Code  PDBOR01050
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

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 Sun, Dec. 5, 2021 from

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