CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record perideridia_gairdneri_ssp._gairdneri - Fri, Dec. 3, 2021, 05:05 ET b
Perideridia gairdneri ssp. gairdneri
common nameGairdner's yampah
CalPhotos image
more photos
© 2001 Doreen L. Smith  Follow image link for photo data.
life formperennial herb
CA Rare Plant Rank
List 4.2
LIST 4: Limited distribution (Watch List).
     0.2: Fairly endangered in California
state rank
S3S4   S3S4: Intermediate between S3 and S4
global rank
G5T3T4      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Counties, states, regions:
Contra Costa (CCA), Kern (KRN), Los Angeles (LAX)*, Mendocino (MEN), Monterey (MNT), Marin (MRN), Napa (NAP), Orange (ORA)*, San Benito (SBT), Santa Clara (SCL), Santa Cruz (SCR), San Diego (SDG)*, San Luis Obispo (SLO), San Mateo (SMT)(*?), Solano (SOL), Sonoma (SON)
  • Pending additional quad-level data, only county data are being provided for List 4 plants.
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Broadleafed upland forest (BUFrs)
•Chaparral (Chprl)
•Coastal prairie (CoPrr)
•Valley and foothill grassland (VFGrs)
•Vernal pools (VnPls)/vernally mesic
blooming period Jun-Oct  
elevation range0 - 610 meters
Endangered in the southern portion of its range; status of occurrences uncertain. Can be relatively common locally, especially in northern counties. Is plant extant in SMT Co.? Threatened by agriculture, grazing, non-native plants, habitat alteration, and urbanization. See University of California Publications in Botany 55:1-74 (1969) for taxonomic treatment.
full namePerideridia gairdneri (H. & A.) Math. ssp. gairdneri
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  PEGAG Element Code  PDAPI1N062
CalFlora species this taxon    CalFlora genus related taxa
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 Fri, Dec. 3, 2021 from

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