CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record hibiscus_lasiocarpos_var._occidentalis - Wed, Dec. 8, 2021, 19:29 ET b
Hibiscus lasiocarpos var. occidentalis
common namewoolly rose-mallow
CalPhotos image
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life form rhizomatous herb emergent
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
S3      ranking system key
global rank
G5T3      ranking system key
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (38):
Stockton West (462A) 3712183, Holt (462B) 3712184, Woodward Island (463A) 3712185, Brentwood (463B) 3712186, Clifton Court Forebay (463D) 3712175, Thornton (479B) 3812124, Terminous (479C) 3812114, Isleton (480A) 3812125, Rio Vista (480B) 3812126, Jersey Island (480C) 3812116, Bouldin Island (480D) 3812115, Florin (496B) 3812144, Bruceville (496C) 3812134, Clarksburg (497A) 3812145, Liberty Island (497C) 3812136, Courtland (497D) 3812135, Dozier (498D) 3812137, Grays Bend (513B) 3812166, Sacramento West (513D) 3812155, Sutter Causeway (529B) 3812186, Knights Landing (529C) 3812176, Verona (529D) 3812175, Gilsizer Slough (544C) 3912116, Sutter Buttes (545A) 3912127, Meridian (545B) 3912128, Tisdale Weir (545D) 3912117, West Of Biggs (561A) 3912147, Butte City (561B) 3912148, Sanborn Slough (561C) 3912138, Pennington (561D) 3912137, Logandale (562B) 3912242, Hamlin Canyon (576B) 3912166, Shippee (576C) 3912156, Ord Ferry (577B) 3912168, Llano Seco (577C) 3912158, Nelson (577D) 3912157, Paradise West (592C) 3912176, Richardson Springs (593D) 3912177
quad data info

Counties, states, regions:
Butte (BUT), Contra Costa (CCA), Colusa (COL), Glenn (GLE), Sacramento (SAC), San Joaquin (SJQ), Solano (SOL), Sutter (SUT), Yolo (YOL)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Marshes and swamps (MshSw)(freshwater)/Often in riprap on sides of levees.
blooming period Jun-Sep  
elevation range0 - 120 meters
Most occurrences are very small. Seriously threatened by habitat disturbance, development, agriculture, recreational activites, and channelization of the Sacramento River and its tributaries. Also threatened by weed control measures and erosion. Possibly threatened by trail maintenance. See Madroņo 56(2):104-111 for revised taxonomy.
full nameHibiscus lasiocarpos Cav. var. occidentalis (Torr.) A. Gray
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDMAL0H0R3
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. 8, 2021 from

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