Taxon Report
Sagittaria sanfordii GreeneSanford's arrowhead |
 ©2013 Debra L. Cook |
Species Description:
Sagittaria sanfordii, commonly known as Sanford's arrowhead, is a perennial rhizomatous herb (emergent) in the Alismataceae that is found only in California. It occurs within Marshes and swamps, growing at elevations from 0 to 650 meters. Sagittaria sanfordii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.
Classification
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Scientific Name: |
Sagittaria sanfordii Greene |
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Common Name: |
Sanford's arrowhead |
| Family: | Alismataceae |
| Element Code: | PMALI040Q0 |
| USDA Plants Symbol: | SASA2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb (emergent) |
| Blooming Period: May-Oct(Nov) | May-Oct(Nov) |
| Elevation: | 0-650 (0-2135) |
| General Habitats: | Marshes and swamps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 143 |
| Element Occurrence Ranks: | |
| Excellent (A) | 15 |
| Good (B) | 41 |
| Fair (C) | 28 |
| Poor (D) | 4 |
| None (X) | 10 |
| Unknown (U) | 45 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Butte (BUT), Del Norte (DNT), El Dorado (ELD), Fresno (FRE), Kings (KNG), Los Angeles (LAX), Madera (MAD), Marin (MRN), Mariposa (MPA), Merced (MER), Napa (NAP), Orange (ORA), Sacramento (SAC), San Bernardino (SBD), San Joaquin (SJQ), San Mateo (SMT), Santa Clara (SCL), Shasta (SHA), Solano (SOL), Sutter (SUT), Tehama (TEH), Tulare (TUL), Ventura (VEN)*, Yuba (YUB) | |
| Quads: Name (Quad Code) | |
| Atwater (3712035), Bend (4012232), Berry Creek (3912164), Biggs (3912146), Bruceville (3812134), Buffalo Creek (3812152), Carbondale (3812141), Carmichael (3812153), Citrus Heights (3812163), Clarksville (3812161), Clovis (3611976), Courtland (3812135), Crescent City (4112472), Cucamonga Peak (3411725), Dales (4012231), Delta Ranch (3712016), Elk Grove (3812143), Firebaugh (3612074), Florin (3812144), Folsom (3812162), Folsom SE (3812151), Fresno North (3611977), Friant (3611986), Galt (3812133), Glendora (3411727), Gridley (3912136), Guernsey (3611926), Gustine (3712038), Herndon (3611978), Ingomar (3712028), Inverness (3812217), Isleton (3812125), Ivanhoe (3611942), Jamesan (3612062), Liberty Island (3812136), Lockeford (3812122), Los Alamitos (3311871), Los Banos (3712017), Los Gatos (3712128), Matilija (3411943)*, Mendota Dam (3612073), Merced (3712034), Monson (3611943), Nicolaus (3812185), Olivehurst (3912115), Orange Cove North (3611963), Orange Cove South (3611953), Owens Reservoir (3712032), Palo Alto (3712242), Piedra (3611974), Project City (4012263), Reedley (3611954), Richardson Springs NW (3912188), Rio Linda (3812164), Rio Vista (3812126), Sacramento East (3812154), San Dimas (3411717), San Luis Ranch (3712027), Sloughhouse (3812142), Stockton West (3712183), Thornton (3812124), Tranquillity (3612063), Turner Ranch (3712026), Van Nuys (3411824), Wahtoke (3611964), Waterloo (3812112), Whiskeytown (4012265), Yosemite Lake (3712044), Yountville (3812243) | |
Threat List Data from the CNDDB
| Threat List Total: | 17 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 72 | 50 % | |
| Other | 27 | 18% |
| Waterway bank protection/maintenance | 22 | 15% |
| Development | 14 | 9% |
| Grazing | 10 | 6% |
| Altered flood/tidal/hydrologic regime | 9 | 6% |
| Biocides | 7 | 4% |
| Non-native plant impacts | 7 | 4% |
| Road/trail construction/maint. | 6 | 4% |
| Recreational use (non-ORV) | 5 | 3% |
| Vandalism/dumping/litter | 4 | 2% |
| Erosion/runoff | 4 | 2% |
| Foot traffic/trampling | 3 | 2% |
| Dam/Inundation | 2 | 1% |
| Feral pigs | 1 | 0% |
| Agriculture | 1 | 0% |
| Mining | 1 | 0% |
| Surface water diversion | 1 | 0% |
Notes
| Extirpated from southern California, and mostly extirpated from the Central Valley. Several SAC Co. occurrences not relocated during fieldwork in 2005. See Pittonia 2:158 (1890) for original description. |
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Threats: |
| Threatened by grazing, development, recreational activities, non-native plants, road widening, and channel alteration and maintenance. |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 12 January 2025].