Taxon Report
Symphyotrichum lentum (Greene) G.L. NesomSuisun Marsh aster |
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Classification
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Scientific Name: |
Symphyotrichum lentum (Greene) G.L. Nesom |
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Common Name: |
Suisun Marsh aster |
| Family: | Asteraceae |
| Element Code: | PDASTE8470 |
| USDA Plants Symbol: | SYLE2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb |
| Blooming Period: (Apr)May-Nov | (Apr)May-Nov |
| Elevation: | 0-3 (0-10) |
| General Habitats: | Marshes and swamps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG; SB_USDA |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 175 |
| Element Occurrence Ranks: | |
| Excellent (A) | 6 |
| Good (B) | 26 |
| Fair (C) | 49 |
| Poor (D) | 15 |
| None (X) | 0 |
| Unknown (U) | 79 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Contra Costa (CCA), Napa (NAP), Sacramento (SAC), San Joaquin (SJQ), Solano (SOL), Yolo (YOL) | |
| Quads: Name (Quad Code) | |
| Antioch North (3812117), Benicia (3812212), Bouldin Island (3812115), Brentwood (3712186), Cordelia (3812222), Cuttings Wharf (3812223), Denverton (3812128), Dozier (3812137), Elmira (3812138), Fairfield North (3812231), Fairfield South (3812221), Holt (3712184), Honker Bay (3812118), Isleton (3812125), Jersey Island (3812116), Knights Landing (3812176), Liberty Island (3812136), Lodi South (3812113), Napa (3812233), Rio Vista (3812126), Sacramento West (3812155), San Quentin (3712284), Stockton West (3712183), Terminous (3812114), Thornton (3812124), Vine Hill (3812211), Woodward Island (3712185) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 62 | 35 % | |
| Waterway bank protection/maintenance | 27 | 15% |
| Erosion/runoff | 18 | 10% |
| Recreational use (non-ORV) | 17 | 9% |
| Non-native plant impacts | 11 | 6% |
| Other | 11 | 6% |
| Road/trail construction/maint. | 5 | 2% |
| Biocides | 3 | 1% |
| Foot traffic/trampling | 2 | 1% |
| Military operations | 1 | 0% |
| Development | 1 | 0% |
Notes
| Intergrades into A. chilensis. 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. |
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Threats: |
| Seriously threatened by marsh habitat alteration and loss, and erosion. Possibly threatened by herbicide application. |
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Taxonomy: |
| USFWS uses the name A. chilensis var. lentus. |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 29 December 2024].