Featuring California vascular plant data from the Consortium of California Herbaria and other sources
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Biodiversity data provided by the participants of the Consortium of California Herbaria (Accessed through CCH1 Data Portal,, 2023 January 28.

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CCH1 Portal. 2023. Biodiversity data provided by the participants of the Consortium of California Herbaria ( Accessed on January 28).

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You searched for: Spirodela polyrhiza

  F  CCH1_AIDherbscientific namecollectorcoll. num.formatted datecountylocality
BLMRD0810BLMRDSpirodela polyrhizaD. Heinze7041967-03-29 Butte
CAS-BOT245023CASSpirodela polyrhizaBethel, Ellsworths.n.1923-04-24 ModocAdin.
CAS-BOT245024CASSpirodela polyrhizaBartholomew, Bruce50521989-08-11 ModocAlong W side of Goose Lake, 4.2 km N of McGinty Point on National Forest Road 48.
CAS-BOT534884CASSpirodela polyrhizaParish, Samuel B.11651881-09-01 San BernardinoSan Bernardino, swamp south of town
CAS-BOT534885CASSpirodela polyrhizaHayward, Idas.n.1928-07-27 Santa CruzPajaro River below narrow gauge bridge, Watsonville
CAS-BOT534886CASSpirodela polyrhizaRubtzoff, Peter7041951-09-02 SonomaNorthern half of Lower Marsh, in the open, in water
CAS-BOT534887CASSpirodela polyrhizaFerris, Roxana S.21011920-10-01 San MateoMud Lakes, Coalmine Ridge
CAS-BOT534888CASSpirodela polyrhizaRattan, Volneys.n.1882-06-01 MendocinoNear summit Mt. Sanhedrin
CAS-BOT534889CASSpirodela polyrhizaParish, S. B.100751915-06-25 San BernardinoPond at Rancho Verde, Victorville
CAS-BOT534890CASSpirodela polyrhizaMason, Herbert L.145611953-07-08 PlumasFour miles northwest of Loyalton
CAS-BOT534891CASSpirodela polyrhizaRubtzoff, Peter7041951-09-02 SonomaNorthern half of Lower Marsh, Pitkin Marsh, near Forestville
CAS-BOT534892CASSpirodela polyrhizaMason, Herbert L.145611953-07-08 PlumasFour miles northwest of Loyalton
CAS-BOT534893CASSpirodela polyrhizaMason, Herbert L.146301955-06-08 ShastaIn a marsh at the bridge, west edge of Fall River Mill
CAS-BOT534895CASSpirodela polyrhizaTwisselmann, Ernest C.31191956-08-10 KernBuena Vista Slough floodgates 4.1 miles northwest of Tupman
CAS-BOT534896CASSpirodela polyrhizaSmith, Doreen; Follette, Wilmas.n.2004-09-12 MarinPoint Reyes National Seashore, Abbotts Lagoon (freshwater) on pond margins
CAS-BOT535251CASSpirodela polyrhizaSommers, Fred13581976-08-12 PlumasSierra Nevada. Sierra Valley along Marble Lane
CAS-BOT535252CASSpirodela polyrhizaShowers, D.DS 43821980-07-19 ShastaLassen Volcanic National Park. 1-4 mile south of Windy Point, Diamond Peak
CAS-BOT535253CASSpirodela polyrhizaWiggins, Ira L.90041938-08-15 Tuolumne10 mi. W. of Jamestown at Yosemite Junction
CAS-BOT535254CASSpirodela polyrhizaSutliffe, Mrs. E. C.s.n.1922-07-15 MarinLily Lake
CAS-BOT535255CASSpirodela polyrhizaEastwood, Alices.n.1921-11-01 MarinLily Lake
CAS-BOT535256CASSpirodela polyrhizaWeatherby, Robert J.14851950-07-28 PlumasBridge over Indian Creek, road to Taylorville
CAS-BOT535257CASSpirodela polyrhizaStacey, J. W.s.n.1923-09-30 MarinNear Pt. Reyes Station
CAS-BOT535258CASSpirodela polyrhizaWiggins, Ira L.90041938-08-15 Tuolumne10 mi. W. of Jamestown at Yosemite Junction
CDA0039173CDASpirodela polyrhizaJohn Tolleys.n.1978-08-31 GlennPond at Road 39 and Highway 9 Willows.
CHSC112434CHSCSpirodela polyrhizaLowell Ahart187582013-06-08 ModocOn the north side of levee, about 100 yards north of the Parking Area, northwest of the old barn, Ash Creek State Wildlife Area, about 3.9 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. T3 N R08E S27 SE1-4
CHSC43794CHSCSpirodela polyrhizaVernon Oswald13071984-06-21 ButtePine Creek at Hwy 32. Along the edge of the creek. T2 N R0 W S22 N edge
CHSC49641CHSCSpirodela polyrhizaVernon Oswald23341987-04-20 ButteButte Creek Preserve on the s side of the creek ne of the Skyway. On the edge of a dredger pond. T2 N R02E S3 W1-4 of SE1-4
CHSC62028CHSCSpirodela polyrhizaVernon H. Oswald59521993-09-29 GlennSacramento National Wildlife Refuge. Rufuge located ca. 7 mi S of Willows, in the SW corner of Cell 5, Tract C. On the edge of a field. T1 N R0 W S01 SE1-4 of SE1-4
CHSC65281CHSCSpirodela polyrhizaVernon H. Oswald72131995-08-21 LassenWarner Mtns. Blue Lake located ca. 13 mi SE of Likely. At the SW corner of the lake. T3 N R15E S20 SE1-4
CHSC66279CHSCSpirodela polyrhizaVernon H. Oswald78831996-06-24 LassenModoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In a meadow on th E side of Papoose Creek N of the springs. T3 N R11E S2 W1-4 of SE1-4
CHSC72245CHSCSpirodela polyrhizaVernon H. Oswald96411998-09-16 SiskiyouHwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi east of Hwy. 97. T4 N R02E S
CHSC8762CHSCSpirodela polyrhizaS. Chulasmai291966-04-30 ShastaVernal pool 0.5 mile from Hat Creek River.
CHSC99244CHSCSpirodela polyrhizaLowell Ahart150072008-06-21 ModocOn shallow water 6-8 inches deep, along a deep natural drainage, about 30 yards west of the levee, mountain meadow, in Big Valley about 3.6 miles (air) north of the Headquarters at Ash Creek State Wildlife Area, about 6.4 miles (air) northeast of Bieber. T3 N R08E S2 W1-4
DAV352788DAVSpirodela polyrhizaWilliam Andersons.n.1963-02-28 MarinMarin County:
DAV352789DAVSpirodela polyrhizaGeri Hulse-Stephens769a2001-07-02 LakeLake County: Goat Mountain. Addington Pond.
DAV352790DAVSpirodela polyrhizaHerbert L. Mason145611953-07-08 PlumasPlumas County: 4 miles northwest of Loyalton.
HREC556HRECSpirodela polyrhizaPeter Rubtzoff61141969-07-17 MendocinoU. C. Hopland Field Station. Headquarters Lae ca. 0.75 mi. east of Station headquarters
HREC557HRECSpirodela polyrhizaA. H. MurphyHF 1461959-03-22 MendocinoLake pasture
HSC100151HSCSpirodela polyrhizaM.A. Ericksen308B1979-05-29 HumboldtNorthern-most of Clam Beach ponds
HSC100154HSCSpirodela polyrhizaJ.M. DiTomaso893B1979-04-21 HumboldtNext to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville
HSC100156HSCSpirodela polyrhizaKenneth Clark148C1979-04-21 HumboldtOff of Cranell Rd., 50 ft. E of Hwy. 101
HSC46344HSCSpirodela polyrhizaJ.P. Smith72821973-08-09 LassenBlue Lake, Modoc National Forest
HSC59648HSCSpirodela polyrhizaMichael Dalke911979-05-18 HumboldtHwy. 101, Clam beach pond
HSC62698HSCSpirodela polyrhizaMichelle Stevens1201979-05-18 HumboldtPonds across from Clam Beach
JEPS114852UCJEPSSpirodela polyrhizaLowell Ahart, John Dittes150072008-06-21 ModocOn shallow water 6-8 inches deep, along a deep natural drainage, about 30 yards west of the levee, mountain meadow, in Big Valley about 3.6 miles (air) north of the Headquarters at Ash Creek State Wildlife Area, about 6.4 miles (air) northeast of Bieber
JEPS120892UCJEPSSpirodela polyrhizaLowell Ahart, John Dittes, Todd Sloat187582013-06-08 Modocon the N side of levee, about 100 yards north of Parking Area, NW of the old barn, Ash Creek Wildlife Area, about 3.9 air miles W of Adin, about 7.7 air miles NE of Bieber. Big Valley.
JEPS33100UCJEPSSpirodela polyrhizaS. B. Parish105151915-06-25 San BernardinoRancho Verde; Victorville
JEPS404UCJEPSSpirodela polyrhizaWillis L. Jepson78221918-08-05 ModocSouth Fork Valley
JEPS418UCJEPSSpirodela polyrhizaWillis L. Jepson1897-08-01 MendocinoSanhedrin Pass to South Eel
JEPS89248UCJEPSSpirodela polyrhizaHall, Babcock43111903-06-29 Shastanear Mill Creek (Hot Springs, Mt. Lassen); Mt. Lassen
JEPS89249UCJEPSSpirodela polyrhizaW. H. Brewer21901863-08-30 UnknownPit River
JEPS89250UCJEPSSpirodela polyrhizaW. H. Brewer21901863-08-30 UnknownPit River
LA93383LASpirodela polyrhizaHelen North461967-05-27 Yoloin Putah creek, near Putah Creek Lodge, University of California, Davis
NCC18375NCCSpirodela polyrhizaBaker, Milo S.1946-07-27 LakeE approach to bridge on Lakeport-Lucern cutoff
NCC18376NCCSpirodela polyrhizaRubtzoff, Peter7041951-09-02 SonomaPitkin Marsh, near Forestville; northern half of lower marsh
NCC18377NCCSpirodela polyrhizaMason, Herbert L.1946-07-27 Lakepool along cutoff to Lucern from west side of Clear Lake
NCC18378NCCSpirodela polyrhizaMason, Herbert L.146301955-06-08 Shastaat the bridge, W edge of Fall River Mills
POM185949RSASpirodela polyrhizaN. L. Gardners.n.1903-06-12 San FranciscoLake Merced
POM312455RSASpirodela polyrhizaMalcolm A. Nobs4231948-08-24 MercedModesto Properties Gun Club, 15 miles east of Gustine
POM312468RSASpirodela polyrhizaH. L. Mason145611953-07-08 Plumas4 miles northwest of Loyalton
POM47767RSASpirodela polyrhizaI. M. Johnstons.n.1924-08-31 San BernardinoVictorville.
PUA10389PUASpirodela polyrhizaCharlie Mc Kelvey1976-09-01 MendocinoLocal landmark: Lake Cleone. Fort Bragg Quad.
RSA0178908RSASpirodela polyrhizaL. C. Wheeler37911935-08-06 ModocPine Creek, Warner Mountains.
RSA23106RSASpirodela polyrhizaI. L. Wiggins90041938-08-15 TuolumneSmall roadside pool at Yosemite Junction, 10 miles W of Jamestown.
RSA233789RSASpirodela polyrhizaRobert F. Thorne391481969-09-05 ModocNorth of South Fork of Pit River above jct. with West Creek at Public Campground, ca. 6 mi. E of Likely.
RSA261453RSASpirodela polyrhizaHelen North461967-05-27 YoloNear Putah Lodge, University of California, Davis
RSA310058RSASpirodela polyrhizaWayne P. Armstrong11751983-10-22 San BernardinoMojave River about 1.0 mile E of Victorville (Mojave Narros Regional Park).
RSA52872RSASpirodela polyrhizaR. Weatherby14851950-07-28 PlumasIndian Creek, on road to Taylorsville.
RSA554452RSASpirodela polyrhizaS. J. Myers91-691991-09-07 San BernardinoSouthern Mojave Desert, near Victorville; Mojave Narrows Regional Park.
RSA577796RSASpirodela polyrhizaL. C. Wheeler20611933-08-11 San BernardinoMohave River: At Victorville.
RSA607917RSASpirodela polyrhizaL. C. Wheeler79131961-06-24 RiversideSan Jacinto Mountains: Fulmor Lake.
RSA616745RSASpirodela polyrhizaMary DeDecker22741969-07-22 InyoOwens Valley: Owens River north of Manzanar Road.
RSA69729RSASpirodela polyrhizaF. W. Peirson51101924-08-31 San BernardinoSouth of Victorville.
RSA788216RSASpirodela polyrhizaCarl B. Wolf89671937-06-20 Trinity5.8 miles N of Mendocino county line on Zenia-Covelo Road; North Coast Range.
SD110309SDSpirodela polyrhizaW. P. Armstrongs.n.1981-09-20 San BernardinoNorth end of Mojave Narrows Regional Park approx. 1 mile east of Victorville. Slough area of Mojave River.
SD114847SDSpirodela polyrhizaW. P. Armstrong11751983-10-22 San BernardinoMojave River about 1.0 mile east of Victorville (Mojave Narrows Regional Park).
SD122847SDSpirodela polyrhizaRobert F. Thorne387341969-07-21 InyoOwens Valley: small backwater along Owens River, north of Manzanar Road, Manzanar.
SD46725SDSpirodela polyrhizaRobert J. Weatherby14851950-07-28 PlumasAt edge of slow stream. Bridge over Indian Creek, Road to Taylorsville.
SFV114234SFVSpirodela polyrhizaR. B. Lopopolo191967-04-15 YoloSacramento Valley; Davis. University of California, Davis, campus. Putah Creek, about 50 yards from Putah Recreation Lodge Bridge.
SJSU7949SJSUSpirodela polyrhizaN.A. Hopkins8951977-05-31 Santa CruzN end Pinto Lake NE of Watsonville
UC1101240UCJEPSSpirodela polyrhizaMalcolm A. Nobs, S. Galen Smith1851a1949-09-08 Lakes end Clear Lake (at outlet to Cache Creek)
UC1101241UCJEPSSpirodela polyrhizaMalcolm A. Nobs, S. Galen Smith13981949-08-19 Plumasca 2 mi s Greenville; Indian Valley
UC1101242UCJEPSSpirodela polyrhizaMalcolm A. Nobs, S. Galen Smith9511949-07-08 Solanoca 4 mi sw Rio Vista (along Highway 24, small marsh along Sacremento River); Sacramento River
UC1101243UCJEPSSpirodela polyrhizaMalcolm A. Nobs, S. Galen Smith4231948-08-24 Merced15 mi e Gustine (Modesto Properties Gun Club); San Joaquin Valley
UC1101244UCJEPSSpirodela polyrhizaVerne Grant, Irving Schneider81321947-07-22 Modocn of Alturas (North Fork Pit River by confluence with Gleason Creek on Highway 39 North Fork Pit River
UC1101245UCJEPSSpirodela polyrhizaVerne Grant, Irving Schneider80661947-07-19 Modocs of Alturas (Corporation ranch, irrigation ditch s of s loop road)
UC1101246UCJEPSSpirodela polyrhizaHerbert L. Mason145611953-07-08 Plumas4 mi nw Loyalton
UC1101313UCJEPSSpirodela polyrhizaMalcolm A. Nobs, Herbert L. Mason7481949-05-29 Shastamarsh between Hat Creek and Pit River bridge (Highway 299)
UC1101315UCJEPSSpirodela polyrhizaMalcolm A. Nobs, S. Galen Smith17871949-09-02 Inyo8.5 mi n Bishop (at Fish Slough); Fish Slough
UC1112277UCJEPSSpirodela polyrhizaH. L. Mason146301955-06-08 Shastaw edge Fall River Mill (at the bridge)
UC146132UCJEPSSpirodela polyrhizaJoseph P. Tracy27451908-06-27 Humboldtnw slope Buck Mountain (pond above mouth of Little Van Duzen); Northern Coast Ranges
UC183725UCJEPSSpirodela polyrhizaS. B. Parish105151915-06-25 San BernardinoVictorville Mojave Desert (Rancho Verde)
UC2345UCJEPSSpirodela polyrhizaW. H. Brewer21901863-08-30 UnknownPit River
UC2355UCJEPSSpirodela polyrhizaState Survey21901935-07-24 UnknownPit River
UC52248UCJEPSSpirodela polyrhizaN. L. Gardner, W. J. V. Chesnut1903-06-12 San FranciscoLake Merced
UC54241UCJEPSSpirodela polyrhizaH. M. Hall, E. B. Babcock43111903-06-20 Shastanear Mill Creek; Mount Lassen
UC552356UCJEPSSpirodela polyrhizaH. W. Shepherd1936-02-03 ShastaFall River Mills
UC55669UCJEPSSpirodela polyrhizaJ. Burtt Davy41431896-07-22 SonomaRussian River
UC625407UCJEPSSpirodela polyrhizaIra L. Wiggins90041938-08-15 Tuolumne10 mi w Jamestown (at Yosemite Junction); Yosemite Junction
UC672873UCJEPSSpirodela polyrhizaJoseph P. Tracy103711932-08-21 Humboldtw slope Chaparral Mt. (Three Canon e side of Mad River)
UC767608UCJEPSSpirodela polyrhizaR. F. Hoover271934-09-15 StanislausModesto
UCR257796UCRSpirodela polyrhizaGeorge K. Helmkamp194482012-07-22 SierraHenness Pass Road, 1.1 mile east of its junction with CA-89 at the north end of Kyburz Flat
UCR79293UCRSpirodela polyrhizaStephen J. Myers91--691991-09-07 San BernardinoMojave River floodplain at Mojave Narrows Regional Park, near Victorville
UCR96381UCRSpirodela polyrhizaGeorge K. Helmkamp12431996-09-28 MonoHot Creek at Owens River Road

Your search returned 104 rows.

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