CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record sidalcea_oregana_ssp._hydrophila - Mon, Nov. 29, 2021 00:20 ET c
Sidalcea oregana ssp. hydrophila
common namemarsh checkerbloom
CalPhotos image
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life formperennial 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
G5T2      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (19):
St. Helena (516C) 3812254, Detert Reservoir (517A) 3812265, Clearlake Highlands (533B) 3812286, Whispering Pines (533C) 3812276, Kelseyville (534A) 3812287, The Geysers (534D) 3812277, St. John Mountain (564B) 3912246, Fouts Springs (564C) 3912236, Crockett Peak (565A) 3912247, Lake Pillsbury (565B) 3912248, Elk Mountain (565C) 3912238, Potato Hill (565D) 3912237, Plaskett Meadows (581A) 3912267, Plaskett Ridge (581B) 3912268, Hull Mountain (581C) 3912258, Kneecap Ridge (581D) 3912257, Jamison Ridge (582B) 3912362, Sanhedrin Mountain (582D) 3912351, Leech Lake Mountain (598A) 3912381
quad data info

Counties, states, regions:
Colusa (COL), Glenn (GLE), Lake (LAK), Mendocino (MEN), Napa (NAP)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Meadows and seeps (Medws)
•Riparian forest (RpFrs)/mesic
blooming period (Jun),Jul-Aug   Months in parentheses are uncommon.
elevation range1100 - 2300 meters
Intergrades with ssp. valida. See Muhlenbergia 1:107 (1904) for original description, and University of Washington Publications in Biology 18:1-96 (1957) for taxonomic treatment.
full nameSidalcea oregana (T. & G.) Gray ssp. hydrophila (Heller) Hitchc.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  SIORH Element Code  PDMAL110K2
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 Mon, Nov. 29, 2021 from

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