Species Details

Brasenia schreberi

watershield

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Photo of Brasenia schreberi
©2014 Kirsten Bovee
Photo of Brasenia schreberi
©2020 Dean Wm. Taylor
Photo of Brasenia schreberi
©1995 Saint Mary's College of California
Scientific Name:
Brasenia schreberi J.F. Gmel.
Common Name:
watershield
Family: Cabombaceae
Element Code: PDCAB01010
USDA Plants Symbol: BRSC
Synonyms/Other Names:
CA Rare Plant Rank: 2B.3
Fed List: None
State List: None
Global Rank: G5
State Rank:
S3
Other Status: IUCN_LC
CRPR Changes:
changed from 2.3 to 2B.3 on 2013-06-12
added to 2.3 on 2010-10-27
Add Date: 2010-10-27
Date Edited: 2021-07-14
Lifeform: perennial rhizomatous herb (aquatic)
Blooming Period: Jun-Sep
Elevation:
0 - 2200 meters
0 - 7220 feet
General Habitat:
  • Marshes and swamps (freshwater)
General Micro Habitat:
Micro Habitat:
Notes:
Many occurrences historical; need field surveys. See Systema Naturae: Per Regna Tria Naturae 2(1):853 (1791) for original description.
Threats:
Taxonomy:
Other:
Total Occurrences: 43
Element Occurrence Ranks:
A B C D X U
6 1 0 0 4 32
Occurrence Status:
Historical >20 Years 28
Recent <=20 Years 15
Presence:
Presumed Extant 39
Possibly Extirpated 2
Presumed Extirpated 2
California Endemic:
California Island:
States: Name (Code)
Alabama (AL), Alaska (AK), Arkansas (AR), California (CA), Connecticut (CT), Delaware (DE), Florida (FL), Georgia (GA), Idaho (ID), Illinois (IL), Indiana (IN), Iowa (IA), Kansas (KS), Kentucky (KY), Louisiana (LA), Maine (ME), Maryland (MD), Massachusetts (MA), Michigan (MI), Minnesota (MN), Mississippi (MS), Missouri (MO), Montana (MT), Nebraska (NE), New Hampshire (NH), New Jersey (NJ), New York (NY), North Carolina (NC), Ohio (OH), Oklahoma (OK), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), South Carolina (SC), South Dakota (SD), Tennessee (TN), Texas (TX), Vermont (VT), Virginia (VA), Washington (WA), West Virginia (WV), Wisconsin (WI)
California Counties and Islands: Name (Code)
Butte (BUT), Calaveras (CAL), El Dorado (ELD), Fresno (FRE), Glenn (GLE), Lake (LAK), Lassen (LAS), Mendocino (MEN), Merced (MER), Nevada (NEV), Plumas (PLU), Sacramento (SAC), San Joaquin (SJQ), Shasta (SHA), Sierra (SIE), Siskiyou (SIS), Sonoma (SON), Sutter (SUT), Tehama (TEH), Trinity (TRI), Tulare (TUL), Tuolumne (TUO)
Quads: Name (Quad Code)
Annapolis (3812363), Balls Ferry (4012242), Bouldin Island (3812115)*, Bray (4112168), Bruceville (3812134), Buck Rock (3912288), Burbeck (3912344), Cahto Peak (3912365), Calaveritas (3812025), Canyondam (4012121), Chalk Mtn. (4012187), Chester (4012132), Childs Meadows (4012134), Cisco Grove (3912035), Clearlake Highlands (3812286), Clearlake Oaks (3912216), Courtland (3812135), Crescent Mills (4012018), Echo Lake (3812071), Emerald Bay (3812081), Fall River Mills (4112114), Finley Butte (4012137), Florence Lake (3711838), Fort Mountain (3812034), Fredonyer Pass (4012037), Greenville (4012028), Hogback Ridge (4012184), Jamison Ridge (3912362), Kelseyville (3812287), Kern Lake (3611834), Lake Eleanor (3711987), Lakeport (3912218), Laughlin Range (3912333), Laytonville (3912364), Llano Seco (3912158), Longvale (3912354), Meadow Valley (3912181), Merced (3712034), Moonlight Peak (4012027), Mt. Givens (3711931), Mt. Harkness (4012143), Murphys (3812024), Oak Run (4012261), Quincy (3912088), Rail Road Flat (3812035), Red Cinder (4012142), Sanborn Slough (3912138), Sattley (3912054), Stockton West (3712183), Upper Lake (3912228), Westwood East (4012038), Westwood West (4012131), Zenia (4012324)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads