CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record packera_layneae - Thu, Dec. 2, 2021, 17:34 ET b
Packera layneae
common nameLayne's ragwort
CalPhotos image
more photos
© 2002 Steve Tyron  Follow image link for photo data, and for images listed as "Senecio layneae".
Link to images listed as "Packera layneae"
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
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
CA state listingRare  11/79
federal listingThreatened  10/18/96
where found
MAPS - Use v8 link below.

Topographic quads (13):
Chinese Camp (458C) 3712074, Moccasin (458D) 3712073, Placerville (510A) 3812067, Shingle Springs (510B) 3812068, Clarksville (511A) 3812161, Georgetown (526A) 3812087, Coloma (526C) 3812078, Garden Valley (526D) 3812077, Pilot Hill (527D) 3812171, Foresthill (541D) 3912017, Challenge (558B) 3912142, Rackerby (559A) 3912143, Clipper Mills (574C) 3912152
quad data info

Counties, states, regions:
Butte (BUT), El Dorado (ELD), Placer (PLA), Tuolumne (TUO), Yuba (YUB)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Cismontane woodland (CmWld)/serpentinite or gabbroic, rocky
blooming period Apr-Aug  
elevation range200 - 1085 meters
Threatened by urbanization, development, clearing, grazing, road construction, vehicles, non-native plants, and fire suppression. See Senecio layneae in TJM (1993). See Bulletin of the Torrey Botanical Club 10:87 (1883) for original description. See Phytologia 49(1): 44-50 (1981) for revised nomenclature.
full namePackera layneae (Greene) W.A. Weber & A. Love
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDAST8H1V0
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 Thu, Dec. 2, 2021 from

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