Taxon Report
Lathyrus jepsonii Greene var. jepsoniiDelta tule pea |
 © 2003 Mark Fogiel |
Species Description:
Lathyrus jepsonii var. jepsonii, commonly known as Delta tule pea, is a perennial herb in the Fabaceae that is found only in California. It occurs within Marshes and swamps (brackish, and freshwater), growing at elevations from 0 to 5 meters. Lathyrus jepsonii var. jepsonii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.
Classification
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Scientific Name: |
Lathyrus jepsonii Greene var. jepsonii |
|
Common Name: |
Delta tule pea |
| Family: | Fabaceae |
| Element Code: | PDFAB250D2 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jul(Aug-Sep) | May-Jul(Aug-Sep) |
| Elevation: | 0-5 (0-15) |
| General Habitats: | Marshes and swamps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G5T2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_BerrySB; SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 133 |
| Element Occurrence Ranks: | |
| Excellent (A) | 5 |
| Good (B) | 20 |
| Fair (C) | 21 |
| Poor (D) | 11 |
| None (X) | 2 |
| Unknown (U) | 74 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Contra Costa (CCA), Napa (NAP), Sacramento (SAC), San Joaquin (SJQ), Solano (SOL), Sonoma (SON), Yolo (YOL) | |
| Quads: Name (Quad Code) | |
| Antioch North (3812117), Benicia (3812212), Bouldin Island (3812115), Bruceville (3812134), Courtland (3812135), Cuttings Wharf (3812223), Denverton (3812128), Dozier (3812137), Fairfield South (3812221), Holt (3712184), Honker Bay (3812118), Isleton (3812125), Jersey Island (3812116), Liberty Island (3812136), Mare Island (3812213), Napa (3812233), Rio Vista (3812126), Stockton West (3712183), Terminous (3812114), Thornton (3812124), Vine Hill (3812211), Woodward Island (3712185) | |
Threat List Data from the CNDDB
| Threat List Total: | 12 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 41 | 31 % | |
| Waterway bank protection/maintenance | 17 | 12% |
| Non-native plant impacts | 12 | 9% |
| Other | 7 | 5% |
| Road/trail construction/maint. | 6 | 4% |
| Recreational use (non-ORV) | 4 | 3% |
| Foot traffic/trampling | 4 | 3% |
| Grazing | 4 | 3% |
| Development | 4 | 3% |
| Erosion/runoff | 2 | 1% |
| Biocides | 2 | 1% |
| Agriculture | 1 | 0% |
| Pollution | 1 | 0% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 22 January 2025].