CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record centromadia_parryi_ssp._rudis - Wed, Dec. 1, 2021, 09:59 ET b
Centromadia parryi ssp. rudis
common nameParry's rough tarplant
CalPhotos image
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Link to images listed as "Centromadia parryi ssp. rudis"
life formannual herb
CA Rare Plant Rank
List 4.2
LIST 4: Limited distribution (Watch List).
     0.2: Fairly endangered in California
state rank
S3      ranking system key
global rank
G3T3      ranking system key
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Counties, states, regions:
Butte (BUT), Colusa (COL), Glenn (GLE), Lake (LAK), Merced (MER), Sacramento (SAC), San Joaquin (SJQ), Solano (SOL), Sutter (SUT), Yolo (YOL)
  • 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•Valley and foothill grassland (VFGrs)
•Vernal pools (VnPls)/alkaline, vernally mesic, seeps, sometimes roadsides
blooming period May-Oct  
elevation range0 - 100 meters
Threatened by development, habitat alteration and habitat disturbance. Possibly threatened by grazing and road maintenance. Protected on several refuges including Sacramento NWR, Colusa NWR, the Llano Seco Unit of the North Valley Wildlife Management Area, the Llano Seco Ranch, and the Vic Fazio Yolo Wetlands Preserve. See Hemizonia parryi ssp. rudis in The Jepson Manual (1993). See Manual of the Botany of the Region of San Francisco Bay: 197(1894) for original description and Novon 9: 467(1999) for revised nomenclature.
full nameCentromadia parryi (Greene) Greene ssp. rudis (Greene) B.G. Baldwin
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDAST4R0P3
Jepson Online Jepson Interchange  Jepson Manual and other resources
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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 Wed, Dec. 1, 2021 from

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