CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record symphyotrichum_lentum - Sat, Nov. 27, 2021 13:05 ET c
Symphyotrichum lentum
common nameSuisun Marsh aster
CalPhotos image
more photos
© 2001 James Reiter  Follow image link for photo data, and for images listed as "Aster lentus".
Link to images listed as "Symphyotrichum lentum"
life form rhizomatous 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 listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (31):
Vernalis (444A) 3712163, Tracy (444B) 3712164, Stockton East (461B) 3712182, Stockton West (462A) 3712183, Holt (462B) 3712184, Union Island (462C) 3712174, Lathrop (462D) 3712173, Woodward Island (463A) 3712185, San Quentin (466B) 3712284, Thornton (479B) 3812124, Terminous (479C) 3812114, Lodi South (479D) 3812113, Isleton (480A) 3812125, Rio Vista (480B) 3812126, Jersey Island (480C) 3812116, Bouldin Island (480D) 3812115, Denverton (481B) 3812128, Honker Bay (481C) 3812118, Antioch North (481D) 3812117, Fairfield South (482A) 3812221, Cordelia (482B) 3812222, Benicia (482C) 3812212, Vine Hill (482D) 3812211, Cuttings Wharf (483A) 3812223, Mare Island (483D) 3812213, Liberty Island (497C) 3812136, Elmira (498C) 3812138, Dozier (498D) 3812137, Fairfield North (499D) 3812231, Napa (500D) 3812233, Sacramento West (513D) 3812155
quad data info

Counties, states, regions:
Contra Costa (CCA), Napa (NAP), Sacramento (SAC), San Joaquin (SJQ), Solano (SOL), 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)(brackish and freshwater)
blooming period (Apr),May-Nov   Months in parentheses are uncommon.
elevation range0 - 3 meters
Seriously threatened by marsh habitat alteration and loss, and erosion. Possibly threatened by herbicide application. Intergrades into A. chilensis. USFWS uses the name A. chilensis var. lentus. See Manual of the Botany of the Region of San Francisco Bay, p. 180 (1894) by E. Greene for original description and Phytologia 77(3): 286 (1994) for revised nomenclature.
full nameSymphyotrichum lentum (Greene) G.L. Nesom
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDASTE8470
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 Sat, Nov. 27, 2021 from

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