33.88431 33.98431 -117.51069 -117.41069 UC/JEPS: Consortium Search Results
Search Results — 915 specimen records retrieved (915 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA683199  Acacia baileyana Scott D. White 2003-12-1 9894 Riverside Santa Ana River Valley; City of Riverside; (La Sierra area). 244 Comment
  UCR149393  Acacia baileyana Scott D. White 2003-12-1 9894 Riverside Santa Ana River Valley; city of Riverside; La Sierra area 244 Comment
  POM1072  Achnatherum speciosum I. M. Johnston 1917-6-5 1238 Riverside Hills south of Arlington 366 Comment
  CAS-BOT-BC29261  Acroptilon repens A. C. Sanders; Seok Ku Hong 2003-1-22 25669 Riverside San Bernardino Valley Region, Riverside, Arlington area, Doolittle Ave, 0.1-1.0 km NW of Van Buren Blvd 226 Comment
  SD130352  Acroptilon repens Oscar F. Clarke 1990-5-24 Riverside South side of Jackson Street, ca. 0.2 miles east of Victoria Avenue in Riverside. Comment
  UCD128573  Acroptilon repens J. C. Roos 1951-10-24 5335 Riverside Between Arlington and Pedley. 228 Comment
  SJSU7112  Allium praecox G. B. Youngberg 1956-3-27 172 Riverside hills near La Sierra College, Arlington, SW of Riverside Comment
  CAS-BOT-BC516262  Alternanthera caracasana Mitch Provance 2013-6-18 613 -30 Riverside Santa Ana River Valley: Riverside, Arlanza area, Terrace Middle School on Rutland Ave. 227 Comment
  SD254518  Alternanthera caracasana Mitch Provance 2013-6-18 613 30 Riverside Santa Ana River Valley: Riverside, Arlanza area, Terrace Middle School on Rutland Ave. (Riverside West 7.5'Q) 227 Comment
  UCR272496  Alternanthera caracasana Mitch Provance 2013-6-18 613- 30 Riverside Santa Ana River Valley, Riverside, Arlanza area, Terrace Middle School on Rutland Ave. 227 Comment
  SBBG104654  Amaranthus albus M. A. Patten 1992-5-27 92 -19 San Bernardino portion of Green River Golf Club; T3S, R8W, S 25/36 152 Comment
  CDA3239  Amaranthus cruentus A. C. Sanders 2002-1-14 24890 Riverside Upper Santa Ana River/San Bernardino Valley Region; Riverside, east side of Streeter Ave. just S of Scott Ave., between Arlington and Central Aves. Comment
  UCR119445  Amaranthus cruentus A. C. Sanders 2002-1-14 24890 Riverside Upper Santa Ana River/San Bernardino Valley Region, Riverside, east side of Streeter Ave. just south of Scott Ave., between Arlington and Central Aves. 238 Comment
  UCR272486  Amaranthus deflexus Mitch Provance 2013-6-16 613- 18 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren 226 Comment
  UCR113869  Amaranthus palmeri Mitch Provance 1998-9-5 1028 Riverside City of Riverside, Hillside area, along the south side of Dewey St., between Streeter Ave. and Palm Ave. 238 Comment
  UCR21016  Amaranthus palmeri C. Elenz 1979-10-27 s.n. Riverside Private residence in Riverside Comment
  CLARK-A1528-1405  Amaranthus retroflexus John C. Roos 1965-8-4 Riverside Arlington Comment
  JEPS54324  Amaranthus retroflexus M. and J. Lesley Oct 1929 Riverside Riverside Comment
  UCSB59695  Amaranthus retroflexus Roos, John 1965-8-4 Riverside Arlington Comment
  CLARK-A1528-145  Ambrosia acanthicarpa Fred B. Essig 1966-9-12 Riverside Riverside Comment
  UCR239599  Ambrosia acanthicarpa O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UC468989  Ambrosia psilostachya R. L. Pendleton 1905-9-28 254 Riverside bottom Santa Ana River 243 Comment
  UCR182537  Ambrosia psilostachya Mitch Provance 2003-7-4 4639 Riverside San Bernardino Valley, Riverside, Monticello Ave. near the canal, between Driftwood and Conway Drives 226 Comment
  RSA522319  Ammannia coccinea Steve Boyd 1989-7-23 3789 Riverside City of Riverside, Santa Ana River, just downstream of old city dump at W extension of Rubidoux Avenue. Comment
  UCR19436  Amorpha fruticosa C. S. Papp 1963-6-29 311 Riverside Riverside, Santa Ana River bed Comment
  CLARK-A1528-970  Amsinckia menziesii Patricia A. Andrews 1975-3-13 5902 Riverside Rubidoux Comment
  RSA0086465  Amsinckia retrorsa Mitch Provance 2013-4-8 413 -12 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave. 226 Comment
  UCR265021  Amsinckia retrorsa Mitch Provance 2013-4-8 413- 12 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CSUSB1819  Anagallis arvensis Deborah Sullivan 1973-7-17 Riverside Pedley, Riverside. 243 Comment
  CSUSB1820  Anagallis arvensis Deborah Sullivan 1973-7-17 Riverside Pedley, Riverside. 243 Comment
  CSUSB802  Anemopsis californica Leland R. Dykes 1962-5-13 107 Riverside Santa Ana River Santa Ana River bottom, near Rubidoux Ave, in (city of) Riverside. Comment
  SEINET13276758 Image available Anemopsis californica Mitch Provance 2012-1 196 -04 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave (Riverside 7.5' Q.) 226 Comment
  UCR264632  Anemopsis californica Mitch Provance 2012-6-19 196- 04 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  CLARK-A1528-148  Anthemis cotula Fred B. Essig 1967-6-22 Riverside Riverside Comment
  POM266318  Anthemis cotula J. C. Roos 1937-5-23 23434 Riverside La Sierra. Comment
  CLARK-A1528-4165  Antirrhinum nuttallianum John C. Roos 1937-5-2 1398 Riverside La Sierra Comment
  UCR117339  Antirrhinum nuttallianum Mitch Provance 1998-3-22 255 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  CLARK-A1528-1418  Apiastrum angustifolium John C. Roos 1938-3-28 728 Riverside La Sierra Comment
  CLARK-A1528-136  Apium graveolens Margaret Ferro 1970-5-16 19 Riverside Jurupa 365 Comment
  OBI40191  Apium graveolens S. Cantrell & W. Appleby, W. Appleby 1985-9-19 s.n. Riverside Santa Ana River Regional park, Riverside. S side of river (R5W, T2S, SW 1/4 sec 30) 207 Comment
  UCR207607  Apium graveolens O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  CSUSB63  Apium leptophyllum Debbie Vigneault 1974-7-8 s.n. Riverside Santa Ana River Santa Ana River bottom, near Van Buren Blvd. 259 Comment
  UC455476  Apocynum cannabinum F. M. Reed Riverside Riverside Comment
  LA206320  Aristida purpurea F. M. Reed; 1906-7-8 1129 Riverside W of Pedley Station on Salt Lake, Vicinity Comment
  UCR2173  Aristida purpurea var. purpurea F. M. Reed 1906-7-8 1129 Riverside Plains near the Salt Lake RR, West Riverside Comment
  UCR2168  Aristida ternipes var. gentilis F. M. Reed 1906-7-8 1128 Riverside Santa Ana River Valley, sand hills west of Pedley [RR] Station 213 Comment
  RSA613711  Artemisia annua G. R. Ballmer 1997-11-22 s.n. Riverside Riverside. Volunteer in yard at 8538 Hickory Lane. Comment
Read comments
Jul 14 2012
  CLARK-A1528-153  Artemisia douglasiana Fred B. Essig 1966-9-12 Riverside Riverside Comment
  POM320341  Artemisia douglasiana Patricia Wilder 1971-11-11 5301 Riverside Along Santa Ana River, north off of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. Drainage Area: Santa Ana River. 229 Comment
  UCR67004  Artemisia douglasiana S. J. Myers 1990-12-10 s.n. Riverside Santa Ana River Valley, Louis Rubidoux Nature Center: along the drainage that connects to the Sunnyslope channel and to the confluence with the Santa Ana River 214 Comment
  UC449647  Artemisia palmeri F. M. Reed 1905-9-28 Riverside Santa Ana River bottom 243 Comment
Read comments
Sep 10 2008
  UCR149415  Arundo donax S. J. Myers 1996-6-6 s.n. Riverside Santa Ana River Valley, Santa Ana River, c. 0.5 mi west of Rubidoux Nature Center Comment
  CLARK-A1528-1463  Asclepias fascicularis John C. Roos 1941-10-24 5333 Riverside Riverside 228 Comment
  UCR125206  Asclepias fascicularis Mitch Provance 1998-5-27 543 Riverside City of Riverside, Hillside area, along railroad tracks on the NW corner of Dewey St. and Streeter Ave. 238 Comment
  UCR182539  Asclepias fascicularis Mitch Provance 2003-7-4 4636 Riverside San Bernardino Valley, Riverside, Along Jackson St., between Audrey and Colorado Aves. 226 Comment
  UCR278882  Asclepias fascicularis Mitch Provance 2011-6-9 17197 Riverside Santa Ana River Valley, Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  CLARK-A1528-124  Asclepias mexicana John C. Roos 1951-10-24 5333 Riverside Riverside 228 Comment
  CLARK-A1528-6  Asparagus officinalis John C. Roos 1951-10-24 5343 Riverside Pedley 243 Comment
  RSA0086466  Asparagus officinalis Mitch Provance 2013-4-8 413 -13 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave. 226 Comment
  SEINET13276755 Image available Asparagus officinalis Mitch Provance 2012-1 196 -08 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave (Riverside 7.5' Q.) 226 Comment
  UCR264607  Asparagus officinalis Mitch Provance 2012-6-19 196- 08 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR265020  Asparagus officinalis Mitch Provance 2013-4-8 413- 13 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR121101  Aster subulatus A. C. Sanders 2001-9-23 24875 Riverside San Bernardino Valley region, Riverside, Castle Park in La Sierra, 91 Fwy at Polk St. 220 Comment
  POM4751  Aster subulatus var. ligulatus Geo. R. Hall 1905-9-3 s.n. Riverside Riverside Comment
  POM57861  Aster subulatus var. ligulatus Geo. R. Hall 1905-09 280 Riverside Riverside Comment
  CLARK-A1528-2735  Astragalus didymocarpus John C. Roos 1938-4-28 1618 Riverside La Sierra Comment
  POM263028  Astragalus didymocarpus J. C. Roos 1937-5-23 695 Riverside La Sierra. Comment
  SD260245  Astragalus didymocarpus Mitch Provance 2013-2-16 213 1 Riverside Santa Ana River Valley: Riverside, Arlanza area, W side of Hole Lake and adjacent mesa (Riverside West 7.5'Q) 226 Comment
  UCR272508  Astragalus didymocarpus Mitch Provance 2013-2-16 213- 01 Riverside Santa Ana River Valley, Riverside, Arlanza area, W side of Hole Lake and adjacent mesa. 226 Comment
  POM182368  Atriplex canescens Joseph A. Ewan 1931-10-3 s.n. Riverside Mockingbird Canyon near Arlington Comment
  POM278724  Atriplex canescens Grant D. Brown 1950-12-2 593 Riverside Santa Ana River NW of Arlington 198 Comment
  RSA1355  Atriplex canescens B. D. Stark 1930-3-17 752 Riverside Mockingbird Canyon Dam Comment
  SEINET3930583  Atriplex canescens Grant D. Brown 1950-12-2 594 Riverside Santa Ana River NW of Arlington.; 0 198 Comment
  SEINET3930599  Atriplex canescens Grant D. Brown 1950-12-2 593 Riverside Santa Ana R. NW. of Arlington.; 0 Comment
  UC472155  Atriplex canescens J. Ewan 1931-10-3 5227 Riverside Mockingbird Canyon near Arlington; Mockingbird Canyon near Arlington Comment
  CAS-BOT-BC170211  Atriplex canescens subsp. canescens Joseph Andorfer Ewan 1931-10-3 5227 Riverside Mockingbird Canyon near Arlington Comment
  CAS-BOT-BC170212  Atriplex canescens subsp. canescens Joseph Andorfer Ewan 1931-10-3 5226 Riverside Mockingbird Canyon near Arlington Comment
  RSA746520  Atriplex glauca R. E. Riefner Jr. 2005-12-30 5 -792 Riverside City of La Sierra, Gramercy Pl. near La Sierra Ave. 227 Comment
  UCR208451  Atriplex glauca R. E. Riefner Jr. 2005-12-30 05- 792 Riverside city of Riverside, Gramercy Place near La Sierra Ave 27 Comment
  GH403023  Atriplex nummularia R. E. Riefner 2004-8-27 04 -394 Unknown N of La Sierra Heights; NE ca. 1 mi off Arlington Ave. along dirt access road to Hidden Valley Wildlife Reserve Comment
  CLARK-A1528-399  Atriplex patula subsp. hastata John C. Roos, Lucille Roos 1951-10-24 5339 Riverside Pedley 228 Comment
  CLARK-A1528-5398  Atriplex patula subsp. hastata John C. Roos, Lucille Roos 1951-10-24 5339 Riverside Pedley 228 Comment
  RSA69835  Atriplex prostrata J. C. Roos 1951-10-24 5339 Riverside Santa Ana River bottom near Pedley Comment
  SBBG119922  Atriplex prostrata O. F. Clarke 1970-9-24 Riverside Santa Ana River bottom just E of the old Salt Lake Railroad bridge 216 Comment
  UCD97620  Atriplex prostrata O. F. Clarke 1970-9-24 s.n. Riverside Riverside, Santa Ana River bottom, just E of the old Salt Lake R.R. Bridge. 216 Comment
  CLARK-A1528-4995  Atriplex rosea John C. Roos 1965-8-4 Riverside Arlington Comment
  UCR18901  Atriplex rosea John C. Roos 1965-8-4 s.n. Riverside San Bernardino Valley, Arlington area, Riverside Comment
  SEINET13297607 Image available Atriplex semibaccata Mitch Provance 2013-1 613 -22 Riverside Santa Ana River Valley: City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren (Riverside West 7.5' Q.) 226 Comment
  UCR272489  Atriplex semibaccata Mitch Provance 2013-6-16 613- 22 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren 226 Comment
  UCR281879  Atriplex semibaccata Mitch Provance 2012-11-9 1112- 17 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  SBBG81109  Atriplex serenana var. serenana S. Cantrell, W. Appleby 1985-9-19 Riverside Santa Ana River Regional Park, S side of river 207 Comment
  UCR182538  Atriplex serenana var. serenana Mitch Provance 2003-7-3 4638 Riverside San Bernardino Valley, Riverside, the NE part of Lionshead (Challen Hill), 0.4 km due west of the corner of California Av. and Van Buren Blvd. 238 Comment
  UCR205986  Atriplex serenana var. serenana Mike Misenhelter 2009-7-29 s.n. Riverside Peninsular Range/ San Bernardino Valley, Riverside; Arlington area, west side of Van Buren Blvd. at north side of Lincoln St., across from drive-in theater 259 Comment
  UCR182541  Atriplex suberecta Mitch Provance 2003-7-4 4642 Riverside San Bernardino Valley, Riverside, Monticello Ave. near the canal, between Driftwood and Conway Drives 226 Comment
  UCR272488  Atriplex suberecta Mitch Provance 2013-6-16 613- 20 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren 226 Comment
  POM319732  Atriplex subspicata Patricia Wilder 1971-11-11 5291 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  UCR281872  Atriplex triangularis Mitch Provance 2012-11-9 1112- 19 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  UCR41434  Atriplex triangularis Scott Cantrell, W. Appleby 1985-9-19 s.n. Riverside Santa Ana River Regional Park. south side of the river 207 Comment
  UCR4328  Atriplex triangularis O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  CSUSB422  Avena fatua D. L. Heald 1966-4-5 Riverside In the front yard of D.L. Heald's residence in Arlington. 304 Comment
  CLARK-A1528-1622  Baccharis emoryi John C. Roos 1937-9-12 Riverside Santa Ana River Comment
  CLARK-A1528-1625  Baccharis emoryi John C. Roos 1937-9-12 Riverside Santa Ana River Comment
  POM319735  Baccharis emoryi Patricia Wilder 1971-11-11 5306 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  POM320337  Baccharis emoryi Patricia Wilder 1971-11-11 5304 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  POM350337  Baccharis emoryi Lester H. Cushman 1931-11-1 14223 Riverside Near Pedley, Santa Ana River Comment
Read comments
Dec 4 2011
  CLARK-A1528-1638  Baccharis glutinosa John C. Roos 1951-10-24 5346 Riverside Santa Ana River 259 Comment
  POM10241  Baccharis salicifolia E. L. Koethen 1897-1 30 Riverside Riverside Comment
Read comments
Nov 21 2015
  UCR182504  Baccharis salicina Mitch Provance 2003-7-4 4635 B Riverside San Bernardino Valley, Riverside, Along Jackson St., between Audrey and Colorado Aves. 226 Comment
  UCR19494  Baccharis salicina John C. Roos 1965-10-6 s.n. Riverside Santa Ana River at Pedley 201 Comment
  UCR281881  Baccharis salicina Mitch Provance 2012-11-9 1112- 14 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  UCR282051  Baccharis salicina Mitch Provance 2012-11-9 1112- 15 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  UCR67005  Baccharis salicina S. J. Myers 1990-12-10 s.n. Riverside Santa Ana River Valley, Louis Rubidoux Nature Center: along the drainage that connects to the Sunnyslope channel and to the confluence with the Santa Ana River 214 Comment
  POM4828  Bebbia juncea I. M. Johnston 1917-6-5 1239 Riverside Hills south of Arlington 366 Comment
  UCR143340  Bebbia juncea I. M. Johnston 1917-6-5 1239 Riverside Hills south of Arlington, Riverside 366 Comment
  CAS-BOT-BC100130  Bebbia juncea var. aspera I. Johnston 1917-6-5 1239 Riverside Hills south of Arlington 365 Comment
  UC893873  Bebbia juncea var. aspera I. Johnston 1917-6-5 1239 Riverside hill s of Arlington 365 Comment
  UCR10170  Berula erecta O. F. Clarke 1970-7-4 s.n. Riverside Santa Ana River Valley, Santa Ana River bottom, just east of old Salt Lake River railroad bridge Comment
  UCR109733  Berula erecta R. E. Orth 1963-3-8 s.n. Riverside Riverside, Santa Ana River 213 Comment
  CLARK-A1528-2552  Beta vulgaris John C. Roos 1937-5-23 2059 Riverside La Sierra Comment
  CLARK-A1528-404  Beta vulgaris John C. Roos 1951-10-24 5334 Riverside Riverside 228 Comment
  UCD169505  Beta vulgaris Mitch Provance 2003-7-4 4640 Riverside San Bernardino Valley, Riverside, Monticello Ave. near the canal, between Driftwood and Conway Drives. 226 Comment
  UCR182536  Beta vulgaris Mitch Provance 2003-7-4 4640 Riverside San Bernardino Valley, Riverside, Monticello Ave. near the canal, between Driftwood and Conway Drives 226 Comment
  UCR239929  Bidens frondosa O. F. Clarke 2004-7-5 s.n. Riverside Louis Rubidoux Nature Center at RR bridge, Santa Ana River near Riverside 155 Comment
  CAS-BOT-BC140664  Bidens laevis Oleg Pryadko 2008-5-2 058 Riverside San Bernardino Valley Region: western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  POM4976  Bidens laevis Geo. R. Hall 1905-1 s.n. Riverside Riverside Comment
  SBBG81103  Bidens laevis S. Cantrell, W. Appleby 1985-9-19 Riverside Santa Ana River Regional Park, Riverside, S side of river; T2S, R5W SW 1/4 S30 207 Comment
  UC128992  Bidens laevis Geo. R. Hall 1905-1 Riverside Riverside Comment
  UCD129555  Bidens laevis Steve Myers 1990-12-10 s.n. Riverside Louis Rubidoux Nature Center: along the drainage that connects to the Sunnyslope Channel and to the confluence with the Santa Ana River. 213 Comment
  UCR216037  Bidens laevis Oleg Pryadko 2008-5-2 058 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR239927  Bidens laevis O. F. Clarke 2004-6-20 s.n. Riverside Santa Ana River near Riverside 244 Comment
  UCR66985  Bidens laevis S. J. Myers 1990-12-10 s.n. Riverside Santa Ana River Valley, Louis Rubidoux Nature Center: along the drainage that connects to the Sunnyslope channel and to the confluence with the Santa Ana River 214 Comment
  CAS-BOT-BC127989  Bidens pilosa J. Ewan 1931-10-3 5223 Riverside Mockingbird Canyon near Arlington Comment
  UCR442  Bolboschoenus maritimus subsp. paludosus O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  CLARK-A1528-1429  Bowlesia incana John C. Roos 1937-2-21 1312 Riverside La Sierra Comment
  UCR125285  Brachychiton populneum A. C. Sanders 2003-1-18 25668 Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, near entrance, Santa Ana River, West Riverside 226 Comment
  SFV15631  Brassica nigra M. Merchant 1992-4-17 3 Riverside Santa Ana River bottom. End of Rubidoux Ave. in Riverside, 0.5 miles from river. 250 Comment
  UCR239806  Brassica tournefortii O. F. Clarke 2004-3-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  CAS-BOT-BC156282  Bromus catharticus A. R. Roos 1937-11-13 s.n. Riverside Riverside. 243 Comment
  LA13867  Bromus catharticus F. M. Reed; 1903-11-30 663 Riverside Riverside and vicinity Comment
  RSA450463  Bromus catharticus A. R. Roos 1937-11-13 s.n. Riverside Riverside. 244 Comment
  SBBG104651  Bromus catharticus M. A. Patten 1992-5-27 92 -16 San Bernardino portion of Green River Golf Club 152 Comment
  UC37740  Bromus catharticus H. M. Hall August 1899 1365 Riverside Riverside; Southern California, Riverside Comment
  UC69343  Bromus catharticus H. M. Hall July 1899 1365 Riverside Riverside Comment
  UC76969  Bromus catharticus F. M. Reed 1903-11-30 663 Riverside Riverside Comment
  UCR277492  Bromus catharticus Mitch Provance 2013-4-16 413- 21 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCSB51392  Bromus catharticus Roos, A. 1937-11-13 Riverside San Bernardino Basin region, Riverside 243 Comment
Read comments
May 21 2011
  UCSB45594  Bromus hordeaceus Roos, J. 1939-5-13 Riverside La Sierra Comment
  UC1131209  Bromus madritensis subsp. rubens A. Lewis Mar 1933 178 Riverside 2 1/2 mi s of Horseshoe Lake ((also found on Gavilon Peak)) 152 Comment
  CLARK-A1528-4552  Bromus rubens John C. Roos 1937-5-1 1409 Riverside La Sierra Comment
  CLARK-A1528-47  Bromus rubens Fred B. Essig 1964-2-20 Riverside La Sierra Comment
  UCR2173B  Bromus rubens F. M. Reed 1906-7-8 1129 B Riverside Plains near the Salt Lake RR, West Riverside Comment
  SD126469  Caesalpinia spinosa Oscar F. Clarke 1988-11-23 Riverside Cultivated on Victoria Avenue between St. Lawrence & Adams Streets Comment
  CDA2647  Callisia repens A. C. Sanders, O. F. Clarke, Susan Sims 2001-11-28 24889 Riverside San Bernardino Valley Region; between Pedley and Mira Loma, Sims property at NE corner of Limonite Ave. and Bain St. Comment
  RSA667102  Callisia repens A. C. Sanders, O. F. Clarke, Susan Sims 2001-11-28 24889 Riverside San Bernardino Valley Region: between Pedley & Mira Loma, Sims property at NE corner of Limonite Av. & Bain St. 210 Comment
  UCR118453  Callisia repens A. C. Sanders, O. F. Clarke, Susan Sims 2001-11-28 24889 Riverside San Bernardino Valley Region, between Pedley and Mira Loma, Sims property at NE corner of Limonite Ave. and Bain St. 210 Comment
  CLARK-A1528-3816  Calyptridium monandrum John C. Roos 1937-3-3 1302 Riverside La Sierra Comment
  SJSU8135  Calyptridium monandrum G. B. Youngberg 1956-3-30 221 Riverside among hills near La Sierra College, Arlington 228 Comment
  SEINET3091115 Image available Calystegia longipes Peggy Merritt 1972-4-28 Riverside Canyon running N in dry granitic hills 1 mi S of intersec. of Alessandra Blvd. and Walnut St. 12 mi W of Riverside. Comment
Read comments
Aug 25 2013
  UCR113900  Calystegia macrostegia subsp. arida Mitch Provance 1998-4-13 432 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal. 250 Comment
  UCR113902  Calystegia macrostegia subsp. arida Mitch Provance 1998-4-13 435 Riverside City of Riverside, Hillside area, near the corner of Adams and Central, along the NE periphery of the Riverside Airport. 244 Comment
  UCR7832  Calystegia macrostegia subsp. tenuifolia Dennis Vander Ven 1968-5-1 s.n. Riverside Santa Ana River, about 10 ft. away and above the river, S bank. 300 yds. west of railroad bridge near Fremont Street 213 Comment
  UCR57202  Calystegia sepium subsp. binghamiae Marlene Braun 1989-5-28 39 Riverside Hidden Valley Wildlife Refuge, entrance at the end of Mann Ave. in Mira Loma. Follow dirt trail 1/4 mi S to river bottom Comment
  RSA125547  Camissonia bistorta R. Weatherby 1949-5-13 406 Riverside Arlington. 152 Comment
  RSA466163  Camissonia californica Jean Carnine 1932-2-28 s.n. Riverside Santa Ana River. Comment
  UCR239879  Camissonia hirtella O. F. Clarke 2004-3-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UCR120168  Camissonia strigulosa Mitch Provance 1998-3-5 187 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  CSUSB541  Capsella bursa-pastoris D. L. Heald 1966-3-5 8 Riverside Corner of Monroe street and Magnolia Ave. 259 Comment
  UCR125999  Cardaria draba Robert Hamilton 2003-2-6 s.n. Riverside Riverside, vacant field on Monroe St. SE of California Ave. 232 Comment
  CLARK-A1528-971  Carex diandra Patricia A. Andrews 1975-3-13 5899 Riverside Rubidoux Comment
  POM10385  Carex praegracilis F. M. Reed 1906-4-29 945 Riverside Riverside: Santa Ana River bottom near Rubidoux Ave. Comment
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Mar 10 2011
  UCR264635  Carex praegracilis Mitch Provance 2012-6-19 196- 03 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR264641  Carex praegracilis Mitch Provance 2013-4-8 413- 01 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR277703  Carex praegracilis Mitch Provance 2013-4-16 413- 19 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR281880  Carex praegracilis Mitch Provance 2012-11-9 1112- 16 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  UCR265614  Carya illinoinensis Ling-Hsuan Kung 2011-5-31 030 Riverside Riverside, Santa Ana River Regional Park 224 Comment
  CLARK-A1528-4185  Castilleja stenantha John C. Roos 1952-6-10 5757 Riverside Riverside 259 Comment
  UCR119425  Centaurea cyanus Mitch Provance 1998-6-6 623 Riverside City of Riverside, NE corner of Van Buren Blvd. and Central Ave. 229 Comment
  CLARK-A1528-2042  Centaurea melitensis Margaret Ferro 1970-5-20 27 Riverside Riverside 457 Comment
  UC63138  Centaurea melitensis H. M. Hall 1900-6-1 Riverside Riverside Comment
  UCR114617  Centaurea repens Mitch Provance 1997-5-18 1095 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal. 250 Comment
  UCR119949  Centaurea repens Mitch Provance 1998-9-5 1026 Riverside City of Riverside, Hillside area, along the south side of Dewey St., between Streeter Ave. and Palm Ave. 238 Comment
  UCR125301  Centaurea repens A. C. Sanders, Seuk Ku Hong 2003-1-22 25669 Riverside San Bernardino Valley Region, Riverside, Arlington area, Doolittle Ave. 0.1-10. km NW of Van Buren Blvd., west of Riverside Airport and east of the site of Hole Lake 226 Comment
  UCR140872  Centaurea repens John Rimoldi 2004-8-15 s.n. Riverside San Bernardino Valley Region, Arlington area of Riverside, Doolittle Ave., c. 0.5 km NW of Van Buren Blvd. on Doolittle, west of Riverside Airport 226 Comment
  UCR201993  Centaurea repens John Rimoldi 2009-1-10 s.n. Riverside San Bernardino Valley Region, Riverside, Arlington area, Van Buren Blvd. at Morris St. near west end of Riverside Airport 226 Comment
  UCR23674  Centaurea repens John C. Roos 1965-9-21 s.n. Riverside Riverside, Arlington area Comment
  UCR26085  Centaurea repens John C. Roos, L. Roos 1951-10-24 5335 Riverside City of Riverside, between Arlington area and Pedley 229 Comment
  UCR62354  Centaurea repens O. F. Clarke 1990-5-24 s.n. Riverside Riverside, intersection of Jackson Street and Victoria Avenue Comment
  RSA391487  Centaurium exaltatum S. B. Parish 1891-1 s.n. Riverside Santa Ana River. Comment
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Aug 8 2010
  RSA714020  Centromadia pungens subsp. laevis R. E. Riefner 2004-8-27 04 -397 Riverside N of La Sierra Heights; NE ca. 1 mi off Arlington Ave. along dirt access road to Hidden Valley Wildlife Reserve. 207 Comment
  UCR217501  Centromadia pungens subsp. laevis Ana Hernandez, Kim Sparks 2009-6-23 011 Riverside Perris basin, Sycamore Canyon, I km north of Alessandro Blvd., along trail next to river. 446 Comment
  POM2848  Chamaesyce polycarpa I. M. Johnston 1917-6-5 1254 Riverside Hills south of Arlington 366 Comment
  SJSU4459  Chamaesyce polycarpa G. B. Youngberg 1956-3-27 179 Riverside hills near La Sierra College, Arlington 300 Comment
  RSA432482A  Chamaesyce polycarpa var. hirtella Lester H. Cushman 1931-11-1 s.n. Riverside Arlington. Southern California Junior College. Comment
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Apr 16 2009
  POM2850  Chamaesyce serpillifolia H. M. Hall 1904-5-24 4961 Riverside Santa Ana river near Riverside. 244 Comment
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Nov 24 2016
  POM8325  Chamaesyce serpillifolia H. M. Hall 1904-5-24 4961 Riverside Santa Ana river near Riverside. 244 Comment
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Nov 24 2016
  POM301706  Cheilanthes newberryi J. C. Roos 1938-5-2 1412 Riverside hills near La Sierra, western Riverside Co. Comment
  SJSU1759  Cheilanthes newberryi G. B. Youngberg 1956-3-27 177 Riverside hills near La Sierra College, Arlington 231 Comment
  UCR134657  Cheilanthes newberryi Mitch Provance 1998-4-10 409 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  UCR260808  Chenopodium Mike Misenhelter 2009-7-29 s.n. Riverside Peninsular Range/ San Bernardino Valley, Riverside; Arlington area, west side of Van Buren Blvd. at north side of Lincoln St., across from drive-in theater 259 Comment
  UCR278885  Chenopodium album Mitch Provance 2011-6-9 17193 Riverside Santa Ana River Valley, Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  CLARK-A1528-406  Chenopodium ambrosioides Ken F. Clarke 1971-9-7 Riverside Riverside Comment
  CLARK-A1528-407  Chenopodium ambrosioides Fred B. Essig 1966-9-12 Riverside Riverside Comment
  CLARK-A1528-5122  Chenopodium ambrosioides var. anthelminticum John C. Roos 1965-8-4 Riverside Comment
  UCR950  Chenopodium berlandieri O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  UCR108834  Chenopodium botrys O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR18790  Chenopodium botrys John C. Roos 1952-6-10 5756 Riverside Santa Ana River in Riverside 259 Comment
  POM677  Chenopodium californicum F. M. Reed 1905-1-20 672 Riverside Riverside. Comment
  RSA549246  Chenopodium rubrum A. C. Sanders, O. F. Clarke 1991-10-5 11741 Riverside Rubidoux, Santa Ana River Regional Park, ca. 0.3 mile SE of Louis Rubidoux Nature Center. Comment
  UCR71614  Chenopodium rubrum A. C. Sanders, O. F. Clarke & CNPS field trip 1991-10-5 11741 Riverside Santa Ana River Valley, Rubidoux, Santa Ana River Regional Park, c. 0.3 mi SE of Louis Rubidoux Nature Center Comment
  UCR25982  Chenopodium strictum var. glaucophyllum John C. Roos 1951-9-25 5295 Riverside Riverside 259 Comment
  CAS-BOT-BC184864  Chloris virgata Fred M. Reed 1904-8-14 94 Riverside On Monroe Street between Duffer's and Victoria Aremnes-Arlington Heights. Comment
  UCR2284  Chloris virgata F. M. Reed 1904-8-14 94 Riverside Riverside, roadside on Monroe Street between Dufferin and Victoria Avenue, Arlington Heights 274 Comment
  UC450104  Chorizanthe leptotheca F. M. Reed 1905-6-9 778 Riverside Riverside and vicinity 365 Comment
  CLARK-A1528-3603  Chorizanthe procumbens John C. Roos 1937-5-2 1802 Riverside La Sierra Comment
  CAS-BOT-BC279839  Cichorium intybus John Green 2004-7-1 s.n. Riverside Santa Ana River Valley: just NW of Riverside Municipal Airport, drainage ca. 0.3 mi. south of Jurupa Road, just east of Van Buren Blvd 229 Comment
  RSA720651  Cichorium intybus John Green 2004-7-1 s.n. Riverside Santa Ana River Valley: just NW of Riverside Municipal Airport, drainage ca. 0.3 mi. south of Jurupa Road, just east of Van Buren Blvd. 229 Comment
  RSA725957  Cichorium intybus Mitch Provance 2003-7-4 4643 Riverside San Bernardino Valley: Riverside, Monticello Ave. near the canal, between Driftwood and Conway Drives. 226 Comment
  UCR137095  Cichorium intybus John F. Green 2004-7-1 s.n. Riverside Santa Ana River Valley, just NW of Riverside Municipal Airport, drainage c. 0.3 mi. south of Jurupa Road, just east of Van Buren Blvd 229 Comment
  UCR182533  Cichorium intybus Mitch Provance 2003-7-4 4643 Riverside San Bernardino Valley, Riverside, Monticello Ave. near the canal, between Driftwood and Conway Drives 226 Comment
  UCR16946  Clematis ligusticifolia Helen Leach 1966-11-1 c661101- 2 Riverside Pedley Rd., City of Mira Loma Comment
  UCR234409  Cnicus benedictus Kai T. Palenscar 2010-4-3 s.n. Riverside City of Riverside; Santa Ana River, just north of Martha McLean-Anza Narrows Park 217 Comment
  CLARK-A1528-138  Conium maculatum Fred B. Essig 1967-6-22 Riverside Santa Ana River Comment
  UCR113737  Convolvulus arvensis Mitch Provance 1998-6-6 622 A Riverside City of Riverside, NE corner of Van Buren Blvd. and Central Ave. 229 Comment
  UCR125205  Convolvulus arvensis Mitch Provance 1998-5-27 544 Riverside City of Riverside, Hillside area, along railroad tracks on the NW corner of Dewey St. and Streeter Ave. 238 Comment
  UCR272493  Convolvulus arvensis Mitch Provance 2013-6-16 613- 23 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren 226 Comment
  UC63198  Corethrogyne filaginifolia H. M. Hall 1899-1-1 Riverside Riverside Comment
  SD253431  Cressa truxillensis Mitch Provance 2013-6-16 613 19 Riverside Santa Ana River Valley: City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, ca. 0.4 mile west of Van Buren. 226 Comment
  SEINET13387115 Image available Cressa truxillensis Mitch Provance 2013-1 613 -19 Riverside Santa Ana River Valley: City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren (Riverside West 7.5' Q.) 226 Comment
  UCR272487  Cressa truxillensis Mitch Provance 2013-6-16 613- 19 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren 226 Comment
  CLARK-A1528-2644  Croton californicus Charles S. Papp 1963-6-29 310 Riverside Santa Ana River Comment
  JEPS52474  Croton californicus F. M. Reed 1905-9-25 Riverside Riverside Comment
  UCR277702  Cryptantha intermedia Mitch Provance 2013-4-16 413- 20 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  OBI32767  Cryptantha microstachys K. J. Ross 1968-5-16 680514 -2 Riverside N side of Santa Ana River off Fremont Ave. E across Union Pacific RR tracks and ford river Comment
  UCR7858  Cryptantha microstachys O. F. Clarke, R. Gagnon 1968-5-14 s.n. Riverside City of Riverside, Santa Ana River bottom off Fremont Avenue Comment
  SD239640  Cryptantha muricata Oleg Pryadko 2008-5-2 50 Riverside San Bernardino Valley Region: Western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200ft south of Clay St and General road, 1000 ft east of Van Buren Blvd., north bank of Santa Ana River (Riverside West 7.5'Q) 207 Comment
  UCR216254  Cryptantha muricata Oleg Pryadko 2008-5-2 050 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  RSA799665  Cucurbita foetidissima LeRoy Gross, Bart O'Brien 2013-3-18 5949 Riverside High bench above the Santa Ana river, north of the river, and south of the Riverside County animal control facility, just west of Van Buren Boulevard. Near Pedley. 205 Comment
  UCR281883  Cuscuta Mitch Provance 2012-11-9 1112- 12 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  POM3647  Cuscuta californica I. M. Johnston 1917-6-5 1255 Riverside Hills south of Arlington 366 Comment
  RSA409709  Cuscuta californica I. M. Johnston 1917-6-5 1255 Riverside Hills south of Arlington 366 Comment
  CLARK-A1528-421  Cuscuta californica var. californica Fred B. Essig 1966-9-12 Riverside Santa Ana River Comment
  UCR117340  Cuscuta californica var. californica Mitch Provance 1998-3-22 257 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UCR278855  Cuscuta campestris Mitch Provance 2011-6-9 17192 Riverside Santa Ana River Valley, Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  UCR6701  Cuscuta subinclusa O. F. Clarke 1967-11-4 671104- 3 Riverside Santa Ana River channel, 0.5 mi. upstream from Salt Lake Railroad Bridge. Comment
  CLARK-A1528-410  Cycloloma atriplicifolium Fred B. Essig 1966-9-12 Riverside Santa Ana River Comment
  UCR207609  Cycloloma atriplicifolium O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UCR117348  Cylindropuntia californica var. californica Mitch Provance 1998-3-22 282 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  CDA38930  Cyperus difformis Steve Boyd 1989-7-23 3788 Riverside City of Riverside, Santa Ana River, just downstream of old city dump at west extension of Rubidoux Ave. 0 Comment
  UC1584121  Cyperus difformis Steve Boyd 1989-7-23 3788 Riverside Santa Ana River just downstream of old city dump at w. extension of Rubidoux Ave. Riverside; Santa Ana River, Riverside Comment
  UCR65293  Cyperus difformis Steve Boyd 1989-7-23 3788 Riverside Santa Ana River, Riverside, just downstream of the old city dump at W extension of Rubidoux Ave. Comment
  CLARK-A1528-1  Cyperus eragrostis Fred B. Essig 1966-9-12 Riverside Riverside Comment
  CLARK-A1528-2  Cyperus eragrostis Fred B. Essig 1966-9-12 Riverside Riverside Comment
  POM319702  Cyperus eragrostis Patricia Wilder 1971-11-11 5289 Riverside Along Santa Ana River, Santa Ana River Drainage Area. 229 Comment
  POM78942  Cyperus eragrostis I. M. Johnston 1925-7-19 s.n. Riverside Pedley. Comment
  UCR109736  Cyperus eragrostis T. W. Fisher 1963-9-20 s.n. Riverside Riverside, Santa Ana River 213 Comment
  CAS-BOT-BC114417  Cyperus erythrorhizos A. C. Sanders; Oscar F. Clarke 1991-10-5 11742 Riverside Rubidoux, Santa Ana River Regional Park, ca. 0.3 mi SE of Louis Rubidoux Nature Center. Comment
  RSA605228  Cyperus erythrorhizos A. C. Sanders, O. F. Clarke, CNPS field trip 1991-10-5 11742 Riverside Rubidoux, Santa Ana River Regional Park, ca. 0.3 mile SE of Louis Rubidoux Nature Center. Comment
  SD224785  Cyperus erythrorhizos A. C. Sanders, O. F. Clarke & C. N. P. S. field trip 1991-10-5 11742 Riverside Rubidoux, Santa Ana River Regional Park, ca. 0.3 mi SE of Louis Rubidoux Nature Center. Comment
  UCR85377  Cyperus erythrorhizos A. C. Sanders, O. F. Clarke & CNPS field trip 1991-10-5 11742 Riverside Santa Ana River Valley, Rubidoux, Santa Ana River Regional Park, c. 0.3 mi SE of Louis Rubidoux Nature Center Comment
  UCR85376  Cyperus niger A. C. Sanders, O. F. Clarke & CNPS field trip 1991-10-5 11745 Riverside Santa Ana River Valley, Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake Comment
  RSA605230  Cyperus niger var. capitatus A. C. Sanders, O. F. Clarke, CNPS field trip 1991-10-5 11745 Riverside Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake. Comment
  UCR441  Cyperus niger var. capitatus O. F. Clarke 1974-11-14 s.n. Riverside Riverside, Santa Ana Riverbottom Park Comment
  RSA605229  Cyperus odoratus A. C. Sanders, O. F. Clarke, CNPS field trip 1991-10-5 11743 Riverside Rubidoux, Santa Ana River Regional Park, ca. 0.3 mile SE of Louis Rubidoux Nature Center. Comment
  UCR109738  Cyperus odoratus T. W. Fisher 1963-9-20 s.n. Riverside Riverside, Santa Ana River 213 Comment
  UCR14419  Cyperus odoratus Leonel Sternburg 1974-8-27 s.n. Riverside Santa Ana River Bottom Regional Park. Comment
  UCR207812  Cyperus odoratus O. F. Clarke 2004-8-5 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UCR41433  Cyperus odoratus Scott Cantrell, W. Appleby 1985-9-19 s.n. Riverside Santa Ana River Regional Park. south side of the river 207 Comment
  UCR85375  Cyperus odoratus A. C. Sanders, O. F. Clarke & CNPS field trip 1991-10-5 11743 Riverside Santa Ana River Valley, Rubidoux, Santa Ana River Regional Park, c. 0.3 mi SE of Louis Rubidoux Nature Center Comment
  UCR92398  Cyperus parishii F. M. Reed 1907-9-15 1936 Riverside Riverside, Santa Ana River at Chinatown ford 244 Comment
  UCSB38376  Cyperus rotundus G. Poinar 1962-10-19 2 Riverside IN ORANGE GROVE RIVERSIDE Comment
  CLARK-A1528-52  Dactylis glomerata Fred B. Essig 1967-5-18 Riverside Riverside Comment
  SBBG104655  Dactylis glomerata M. A. Patten 1992-5-27 92 -21 San Bernardino portion of Green River Golf Club 152 Comment
  UCR30448  Datura stramonium John C. Roos 1965-10-6 s.n. Riverside Santa Ana River at Pedley 201 Comment
  UC444927  Datura wrightii F. M. Reed 1905-9-28 257 Riverside Riverside Comment
  CLARK-A1528-7776  Daucus pusillus John C. Roos 1937-5-2 1399 Riverside La Sierra Comment
  POM265809  Daucus pusillus J. C. Roos 1937-5-2 1399 Riverside La Sierra, western Riverside. [Collection is Jack Frost Lake. aka Frost Reservoir, apparently a part of La Sierra [Loma Linda University Campus] ca. 1937 south of Indiana Avenue and west of Sayward Circle, near Pierce., Owned by city of Riverside ca. 2000 Comment
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May 21 2009
  UCR134642  Daucus pusillus Mitch Provance 1998-4-10 415 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  CAS-BOT-BC414252  Deinandra paniculata R. E. Riefner, Jr. 2014-6-1 14 -140 Riverside Northeast of Norco, E of Eastvale, Community of La Sierra, Hidden Valley Wildlife Area, Santa Ana River Trail, ca. 0.6 mi N of Arlington Ave. 205 Comment
  SD231214  Deinandra paniculata Scott D. White 2003-12-1 9890 Riverside Santa Ana River Valley: City of Riverside (La Sierra area). Riverside West. 244 Comment
  SJSU5503  Delairea odorata R. A. Anderson 1964-12-25 Riverside Riverside 259 Comment
  CLARK-A1528-3865  Delphinium parryi John C. Roos 1937-5-2 1415 Riverside La Sierra Comment
  UC1537319  Delphinium parryi Gordon H. True Jr. 1930-3-20 98 Riverside in wash Mockingbird Hills, Mockingbird Canyon 365 Comment
  RSA0086463  Descurainia pinnata Mitch Provance 2013-4-8 413 -07 Riverside San Bernardino Vally: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave. 226 Comment
  UCR264604  Descurainia pinnata Mitch Provance 2012-6-19 196- 11 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR264651  Descurainia pinnata Mitch Provance 2013-4-8 413- 07 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR265010  Descurainia sophia Mitch Provance 2013-4-8 413- 08 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR120160  Dichelostemma capitatum Mitch Provance 1998-3-5 193 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UC60770  Digitaria sanguinalis E. L. Koethen 1897-8-12 5 Riverside Riverside Comment
  UC76971  Digitaria sanguinalis F. M. Reed 1904-8-23 644 Riverside Riverside Comment
  SJSU1769  Diplacus aurantiacus G. B. Youngberg 1956-3-27 181 Riverside hills near La Sierra College Arlington 251 Comment
  UCR182520  Diplotaxis tenuifolia Mitch Provance 1996-2-27 1075 Riverside Upper Santa Ana River Valley, Riverside, Hillside area, near Dewey St. 232 Comment
  UCR182540  Distichlis spicata Mitch Provance 2003-7-4 4641 Riverside San Bernardino Valley, Riverside, Monticello Ave. near the canal, between Driftwood and Conway Drives 226 Comment
  RSA423468  Dudleya Lester H. Cushman 1932-5-8 s.n. Riverside Near Pedley, close to Santa Ana R. [River]. Comment
  UCR281810  Dysphania ambrosioides Mitch Provance 2012-11-9 1112- 11 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  CSUSB1172  Echinochloa crus-galli Debbie Vigneault 1974-7-17 Riverside Santa Ana River Santa Ana River bottom, near Van Buren Bridge. 259 Comment
  UC39152  Echinochloa crus-galli E. L. Koethen 1897-8-12 8 Riverside Riverside Comment
  UCR6147  Echinochloa crus-galli C. M. Bringle, O. F. Clarke, et al. 1967-5-18 s.n. Riverside Santa Ana River bottom. Along banks of river behind Herrs' residence, 5453 Grassy Trails Drive. Taking path leading from pasture behind house, turn right at first fork and proceed along riverbank 229 Comment
  CLARK-A1528-55  Echinochloa crus-galli var. frumentacea Fred B. Essig 1966-9-12 Riverside Riverside Comment
  UCR9300  Eclipta prostrata K. Black 1969-10-26 s.n. Riverside Santa Ana River bottom near the Van Buren Bridge Comment
  UCR47519  Ehrharta erecta Mira M. Bogen 1987-5-10 s.n. Riverside Riverside, along Van Buren Blvd. between bridge over Santa Ana River and sewer plant Comment
  CAS-BOT-BC112739  Eleocharis geniculata Frederick Morris Reed 1904-7-31 s.n. Riverside Banks of Santa Ana River above Salt Lake Bridge. Comment
  CAS-BOT-BC112743  Eleocharis geniculata A. C. Sanders; Oscar Clarke; C. N. P. S. 1991-10-5 11744 Riverside Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake. Comment
  RSA564498  Eleocharis geniculata A. C. Sanders, O. F. Clarke, CNPS field trip 1991-10-5 11744 Riverside Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake. Comment
  UCR76060  Eleocharis geniculata A. C. Sanders, O. F. Clarke & CNPS field trip 1991-10-5 11744 Riverside Santa Ana River Valley, Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake Comment
  UCR109735  Eleocharis rostellata R. E. Orth 1963-3-8 s.n. Riverside Riverside, Santa Ana River 213 Comment
  UCR17656  Eleocharis rostellata A. C. Sanders 1975-6-17 0747 Riverside Santa Ana Riverbottom, just upstream from the Salt Lake Railroad bridge 213 Comment
  RSA0024925  Eleusine coracana subsp. africana R. E. Riefner Jr. 2013-10-29 13 -225 Riverside La Sierra, along La Sierra Ave. at Sierra Tree Street. 243 Comment
  UCR247515  Eleusine coracana subsp. africana R. E. Riefner Jr. 2013-10-29 13- 225 Riverside La Sierra, along la Sierra Ave, at Sierra Tree Street 243 Comment
  CAS-BOT-BC418621  Eleusine indica R. E. Riefner, Jr. 2013-10-29 13 225 a Riverside La Sierra, along La Sierra Ave. at Sierra Tree St. 243 Comment
  UCR123661  Eleusine indica A. C. Sanders 2001-9-23 24877 Riverside San Bernardino Valley region, Riverside, Castle Park in La Sierra, 91 Fwy at Polk St. 220 Comment
  UCR207568  Elymus triticoides O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UCR264633  Elymus triticoides Mitch Provance 2012-6-19 196- 10 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  CLARK-A1528-539  Emmenanthe penduliflora Heather Hanson 1966-5-16 Riverside Riverside 182 Comment
  CSUSB99  Emmenanthe penduliflora Karen Cook 1966-5-16 Riverside Santa Ana River bottom, east of Van Buren Ave. in city of Riverside. 182 Comment
  UCR216026  Emmenanthe penduliflora Oleg Pryadko 2008-5-2 084 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UC31387  Encelia californica E. L. Koethen 1897-4-1 17 Riverside plains Riverside Comment
  UC31397  Encelia californica E. L. Koethen 1897-4-1 10 Riverside Plains Comment
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Mar 12 2011
  UCR120204  Encelia californica Mitch Provance 1998-3-5 196 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UCR520  Encelia californica Eugene Cardiff 1954-4-5 s.n. Riverside San Bernardino Valley Region, Santa Ana River, near Pedley 207 Comment
  UC895522  Encelia farinosa I. Johnston 1917-6-5 1237 Riverside hills s Arlington 365 Comment
  POM4936  Encelia farinosa var. farinosa I. M. Johnston 1917-6-5 1937 Riverside Hills south of Arlington 366 Comment
  RSA324165  Epipactis gigantea George Henry Grinnell 1921-5-20 s.n. Riverside Riverside. Comment
  RSA381718  Epipactis gigantea Burton 1908-5-30 s.n. Riverside Riverside. Comment
  RSA381719  Epipactis gigantea George Henry Grinnell 1923-5-26 s.n. Riverside Riverside. Comment
  RSA381726  Epipactis gigantea George Henry Grinnell 1919-6-1 s.n. Riverside Riverside. Comment
  RSA382720  Epipactis gigantea George Henry Grinnell 1924-5-24 s.n. Riverside Riverside. Comment
  RSA568556  Epipactis gigantea Burton 1908-5-6 s.n. Riverside Riverside. Comment
  RSA568557  Epipactis gigantea George Henry Grinnell 1923-5-28 s.n. Riverside Riverside. Comment
  RSA568558  Epipactis gigantea George Henry Grinnell 1924-5-20 s.n. Riverside Riverside. Comment
  UC1514825  Epipactis gigantea George Henry Grinnell 1924-5-24 Riverside Riverside Comment
  UCR131004  Epipactis gigantea George H. Grinnell 1921-5-20 s.n. Riverside Riverside 366 Comment
  UCR131080  Epipactis gigantea George H. Grinnell 1923-5-28 s.n. Riverside Riverside 366 Comment
  UCR207988  Epipactis gigantea Mrs. Burton 1908-5-30 s.n. Riverside Peninsular Range/San Bernardino Valley, Riverside Comment
  RSA684643  Equisetum laevigatum Lester H. Cushman 1932-5-15 15144 Riverside Near Pedley Riverside. Comment
  UCR515  Equisetum laevigatum Eugene Cardiff 1954-4-5 s.n. Riverside San Bernardino Valley Region, Santa Ana River, near Pedley 207 Comment
  CLARK-A1528-4637  Eragrostis cilianensis Alfred R. Roos 1927-9-22 10176 Riverside La Sierra Comment
  UC38340  Eragrostis cilianensis H. M. Hall August, 1899 1366 Riverside Riverside Comment
  CLARK-A1528-60  Eragrostis diffusa Fred B. Essig 1966-9-6 Riverside Riverside Comment
  UCD63460  Eragrostis mexicana F. M. Reed 1907-11-24 2000 Riverside Riverside and vicinity. Santa Ana River bottom near Chinese Gardens. Comment
  UCR205985  Eragrostis mexicana Mike Misenhelter 2009-7-29 s.n. Riverside Peninsular Range/ San Bernardino Valley, Riverside; Arlington area, west side of Van Buren Blvd. at north side of Lincoln St., across from drive-in theater 259 Comment
  RSA577755  Eragrostis mexicana subsp. mexicana F. M. Reed 1907-11-24 2000 Riverside Santa Ana River botton near Chinese Gardens Comment
  UCD63467  Eragrostis mexicana subsp. mexicana F. M. Reed 1907-11-24 2000 Riverside Riverside and vicinity. Santa Ana River bottom near Chinese Gardens. Comment
  UCR2381  Eragrostis mexicana subsp. mexicana F. M. Reed 1907-11-24 2000 Riverside Riverside. Santa Ana River bottom near Chinese Gardens. Comment
  POM78995  Eragrostis pectinacea I. M. Johnson 1925-7-19 s.n. Riverside Pedley. Comment
  UCSB38377  Eragrostis pilosa Frederick Morris Reed 1903-11-30 662 Riverside collected in Riverside Comment
  UC52454 Image available Eriastrum densifolium subsp. sanctorum H. M. Hall 1897-7-3 683 San Bernardino Santa Ana River; ; Santa Ana River, Riverside Comment
  SD260179  Ericameria nauseosa Mitch Provance 2013-6-18 613 32 Riverside Santa Ana River Valley: Riverside, Arlanza area, W side of Hole Lake and adjacent mesa. 226 Comment
  UCR272497  Ericameria nauseosa Mitch Provance 2013-6-18 613- 32 Riverside Santa Ana River Valley, Riverside, Arlanza area, W side of Hole Lake and adjacent mesa. 226 Comment
  POM182369  Ericameria palmeri var. pachylepis J. Ewan 1931-10-3 5225 Riverside Dry sand at lake margin Mocking bird Canyon, near Arlington. Comment
  UCR120207  Ericameria palmeri var. pachylepis Mitch Provance 1998-3-5 192 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UCR150558  Ericameria palmeri var. pachylepis Scott D. White 2003-12-1 9891 Riverside Santa Ana River Valley; city of Riverside; La Sierra area 244 Comment
  UCR182446  Ericameria parishii Mitch Provance 2003-7-4 4634 Riverside San Bernardino Valley, Riverside, Along Jackson St., between Audrey and Colorado Aves. 226 Comment
  CLARK-A1528-4877  Erigeron foliosus John C. Roos 1938-5-26 474 Riverside La Sierra Comment
  POM263241  Erigeron foliosus J. C. Roos 1938-5-26 474 Riverside La Sierra. Comment
  RSA69818  Eriochloa acuminata J. C. Roos 1951-9-25 5294 Riverside Riverside 259 Comment
  POM2235  Eriogonum fasciculatum var. polifolium I. M. Johnston 1917-6-5 1240 Riverside Hills south of Arlington 366 Comment
  UC849424  Eriogonum fasciculatum var. polifolium I. Johnston 1917-6-5 1240 Riverside hills s Arlington 365 Comment
  UCR117341  Eriogonum fasciculatum var. polifolium Mitch Provance 1998-3-22 258 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UCR125213  Eriogonum gracile Mitch Provance 1998-5-5 521 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal Ofc. 250 Comment
  CAS-BOT-BC262879  Eriogonum thurberi H. M. Hall 1900-6-1 1400 Riverside Santa Ana River 457 Comment
  UC412809  Eriogonum thurberi R. L. Pendleton 1906-5-27 966 Riverside Santa Ana River above Salt Lake bridge; Santa Ana River Comment
  UCR18275  Eriogonum thurberi Helen Leach 1966-5-31 s.n. Riverside Santa Ana Riverbottom between Pedley (Van Buren) and Rubidoux (Mission) Bridges 244 Comment
  UCR207565  Eriogonum thurberi O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UCR30806  Eriogonum thurberi G. R. Ballmer 1983-7-3 s.n. Riverside City of Riverside, Santa Ana River Bottom, under the Salt Lake Bridge at the end of Fremont Street, near the Humane Society Animal Shelter 216 Comment
  CLARK-A1528-4856  Erodium moschatum John C. Roos 1937-5-2 1402 Riverside Riverside Comment
  CAS-BOT-BC166986  Erythranthe guttata Oleg Pryadko 2008-5-2 052 Riverside San Bernardino Valley Region: western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR239863  Escallonia O. F. Clarke 2004-10-4 s.n. Riverside La Sierra area of Riverside, Kaiser Park Sierra Hospital, Magnolia Ave. at Park Sierra Dr. 220 Comment
  UC1608065  Eucalyptus camaldulensis A. C. Sanders 1985-12-28 5965 Riverside between Mira Loam and Pedley (along Wineville Rd., ca. 1/4 mi. n. of Limonite Ave.) 213 Comment
  UCR67001  Eucalyptus camaldulensis S. J. Myers 1990-12-5 s.n. Riverside Santa Ana River, Louis Rubidoux Nature Center, along drainage that connects to Sunnyslope Channel, and to the confluence with the Santa Ana River 213 Comment
  RSA420833  Eucrypta chrysanthemifolia Lester H. Cushman 1932-5-8 15161 Riverside Near Pedley, close to Santa Ana R. [River]. Comment
  UCR134654  Euphorbia albomarginata Mitch Provance 1998-4-9 403 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or variously referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 259 Comment
  RSA575852  Euphorbia ocellata subsp. ocellata Steve Boyd 1983-7-13 s.n. Riverside Gavilan Hills region, south shore of Lake Mathews. 588 Comment
  CDA39718  Eustoma exaltatum F. D. Harris 1973-8-28 s.n. Riverside Hidden Valley Gun Club, Riverside. 0 Comment
  UC444840  Eustoma exaltatum unknown 1905-9-28 267 Riverside near Salt Lake Bridge (Santa Ana River); Santa Ana River Comment
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Sep 4 2011
  UCR5432  Eustoma exaltatum O. F. Clarke 1966-9-22 660922- 02 Riverside Santa Ana River bottom near Riverside Sewage Plant, Riverside Comment
  POM319662  Euthamia occidentalis Patricia Wilder 1971-11-11 5290 Riverside Along Santa Ana River, Santa Ana River Drainage Area. 229 Comment
  UC74007  Euthamia occidentalis F. M. Reed 1904-11-5 669 Riverside West Riverside on Evans Ranch above Chinese gardens Comment
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Jan 14 2010
  UCR265846  Euthamia occidentalis Mitch Provance 2013-4-8 413- 03 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CLARK-A1528-4654  Festuca megalura John C. Roos 1937-5-2 1395 Riverside La Sierra Comment
  UCR125218  Festuca myuros var. myuros Mitch Provance 1998-5-5 522 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal Ofc. 250 Comment
  CLARK-A1528-4667  Festuca pacifica John C. Roos 1937-5-2 1282 Riverside Riverside Comment
  SBBG104652  Festuca perennis M. A. Patten 1992-5-17 San Bernardino portion of Green River Golf Club 152 Comment
  CLARK-A1528-4670  Festuca reflexa John C. Roos 1938-4-9 1641 Riverside Riverside Comment
  UCR125222  Ficus carica Mitch Provance 1998-9-5 1024 Riverside City of Riverside, Hillside area, along the south side of Dewey St., between Streeter Ave. and Palm Ave. 238 Comment
  UCR113901  Filago californica Mitch Provance 1998-4-13 433 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal. 250 Comment
  UCR134653  Filago gallica Mitch Provance 1998-4-9 404 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or variously referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 259 Comment
  RSA756345  Forestiera pubescens O. F. Clarke 2005-10-15 s.n. Riverside Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge. 215 Comment
  SBBG126062  Forestiera pubescens O. F. Clarke 2004-3-14 Riverside Riverside, Santa Ana River ca. 200 m below old Salt Lake Railroad bridge 215 Comment
  UCR207510  Forestiera pubescens O. F. Clarke 2004-3-14 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge 215 Comment
  UCR207619  Forestiera pubescens O. F. Clarke 2005-10-15 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge 215 Comment
  CLARK-A1528-2928  Frankenia grandifolia John C. Roos 1937-9-16 2568 Riverside Riverside Comment
  CLARK-A1528-5248  Frankenia grandifolia var. campestris John C. Roos 1937-5-23 2342 Riverside Riverside Comment
  RSA265795  Frankenia grandifolia var. campestris J. C. Roos 1937-9-16 2568 Riverside La Sierra, western Riverside Co. Comment
  UCR272485  Frankenia salina Mitch Provance 2013-6-16 613- 24 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, El Dorado Park on Warren St., about 0.35 mi W of Van Buren Blvd. 225 Comment
  UCR272492  Frankenia salina Mitch Provance 2013-6-16 613- 21 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren 226 Comment
  SEINET3081782 Image available Funastrum cynanchoides var. hartwegii Peggy Merritt PM- 720428 Riverside Canyon running N in hills 1 mi S of Intersec. of Alessandra Blvd and Walnut St., 12 mi W of Riverside 366 Comment
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Aug 25 2013
  CLARK-A1528-3947  Galium angustifolium John C. Roos 1937-5-2 1413 Riverside La Sierra Comment
  UCR134644  Galium angustifolium Mitch Provance 1998-4-10 411 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  CLARK-A1528-3948  Galium aparine John C. Roos 1937-5-2 Riverside La Sierra Comment
  CLARK-A1528-3498  Gilia achilleifolia subsp. multicaulis John C. Roos 1937-4-4 1389 Riverside La Sierra Comment
  UCR120181  Gilia angelensis Mitch Provance 1998-3-5 186 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UCR6425  Gilia angelensis Helen Leach 1967-3-2 2 Riverside Pedley 229 Comment
  UCR216245  Gilia capitata Oleg Pryadko 2008-5-2 085 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR252210  Gilia capitata J. Mendoza 2011-5-13 s.n. Riverside Santa Ana River Regional Park near Louis Rubidoux Nature Center 221 Comment
  POM10428  Gilia capitata subsp. abrotanifolia Reed s.n. Riverside Riverside. Comment
  RSA470272  Gilia capitata subsp. abrotanifolia Jean Carnine 1932-2-28 s.n. Riverside Santa Ana River Comment
  SEINET13276757 Image available Glycyrrhiza lepidota Mitch Provance 2012-1 196 -05 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave (Riverside 7.5' Q.) 226 Comment
  UCR264631  Glycyrrhiza lepidota Mitch Provance 2012-6-19 196- 05 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR114610  Gnaphalium canescens subsp. microcephalum Mitch Provance 1997-7-19 1106 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or variously referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area of the city of Riverside. 305 Comment
  CAS-BOT-BC140527  Gnaphalium luteoalbum Oleg Pryadko 2008-5-2 054 Riverside San Bernardino Valley Region: western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR113903  Gnaphalium luteoalbum Mitch Provance 1998-4-13 437 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal. 250 Comment
  UCR216242  Gnaphalium luteoalbum Oleg Pryadko 2008-5-2 054 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  CLARK-A1528-222  Gnaphalium microcephalum Ken F. Clarke 1971-9-7 Riverside Jurupa Comment
  CLARK-A1528-223  Gnaphalium microcephalum Margaret Ferro 1970-5-16 22 Riverside Jurupa 365 Comment
  CAS-BOT-BC140526  Gnaphalium stramineum Oleg Pryadko 2008-5-2 080 Riverside San Bernardino Valley Region: western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR13439  Gnaphalium stramineum A. C. Sanders 1973-5-25 00121 Riverside San Bernardino/upper Santa Ana River Valley, Santa Ana Riverbottom c. 0.5 mi upstream from Salt Lake Railroad bridge 216 Comment
  UCR216243  Gnaphalium stramineum Oleg Pryadko 2008-5-2 080 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR117338  Gutierrezia californica Mitch Provance 1998-3-22 253 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UCR134647  Gutierrezia californica Mitch Provance 1998-4-10 420 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  CSUSB740  Heliotropium curassavicum Heather Hanson 1966-5-16 Riverside 50 yards east of where the Santa Ana River crosses Van Buren Blvd., in the river bottom. 182 Comment
  SEINET13297608 Image available Heliotropium curassavicum Mitch Provance 2013-1 613 -27 Riverside San Bernardino Valley: Riverside, Arlington area, S side of Challen Avenue, near intersection with Curran Dr. (Riverside West 7.5' Q.) 238 Comment
  UCR272481  Heliotropium curassavicum Mitch Provance 2013-6-18 613- 27 Riverside San Bernardino Valley, Riverside, Arlington area, S side of Challen Avenue, near intersection with Curran Dr. 238 Comment
  UCR278884  Heliotropium curassavicum Mitch Provance 2011-6-9 17195 Riverside Santa Ana River Valley, Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  UCR808  Heliotropium curassavicum S. C. Anderson 1957-5-21 s.n. Riverside Riverside, Santa Ana River bottom, 0.5 mi. east of Humane Society, north of Jurupa Ave. [near Union Pacific RR bridge] 220 Comment
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Feb 18 2013
  CLARK-A1528-335  Heliotropium curassavicum subsp. oculatum Fred B. Essig 1966-5-2 Riverside Riverside Comment
  UCR264605  Heliotropium curassavicum var. oculatum Mitch Provance 2012-6-19 196- 12 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR108832  Hemizonia fasciculata O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR114618  Hemizonia fasciculata Mitch Provance 1997-5-20 1096 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal. 250 Comment
  UCR125212  Hemizonia fasciculata Mitch Provance 1998-5-5 520 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal Ofc. 250 Comment
  UCR239919  Hemizonia fasciculata O. F. Clarke 2004-5-2 s.n. Riverside Santa Ana River near Riverside 244 Comment
  UCR43409  Hemizonia fasciculata B. G. Pitzer, Karen Kirtland 1986-5-16 0262 Riverside Peninsular Range, Woodcrest area, adjacent to W side of Van Buren Blvd, and just north of Riverside city limit; E border adjacent to Gage Canal 351 Comment
  CLARK-A1528-239  Hemizonia laevis Fred B. Essig 1967-6-20 Riverside Riverside Comment
  RSA660909  Hemizonia paniculata Mitch Provance 1998-3-5 524 Riverside VABM 1031, Hill traditionally called ''Lionshead'', but also referred to as ''Challen Hill'', located near the corner of Harrison St. and California Ave. in the Arlington area. 274 Comment
  RSA683227  Hemizonia paniculata Scott D. White 2003-12-1 9891 Riverside Santa Ana River Valley; City of Riverside; (La Sierra area). 244 Comment
  RSA683228  Hemizonia paniculata Scott D. White 2003-12-1 9892 Riverside Santa Ana River Valley; City of Riverside; (La Sierra area). 244 Comment
  RSA683236  Hemizonia paniculata Scott D. White 2003-12-1 9890 Riverside Santa Ana River Valley; City of Riverside; (La Sierra area). 244 Comment
  UCR108831  Hemizonia paniculata O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR125216  Hemizonia paniculata Mitch Provance 1998-5-5 524 Riverside Riverside, near VABM 1031, hills traditionally called 'Lionshead', or also referred to as 'Challen Hills', located near the corner of Challen Ave. and Calmhill Dr. in the Arlington area 305 Comment
  UCR134655  Hemizonia paniculata Mitch Provance 1998-4-9 406 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or variously referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 259 Comment
  UCR134656  Hemizonia paniculata Mitch Provance 1998-4-10 413 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  UCR137601  Hemizonia paniculata John F. Green 2004-7-6 s.n. Riverside Santa Ana River Valley, north end of Payton Ave., Riverside, near natural gas pipeline facility, above Santa Ana River 229 Comment
  UCR150557  Hemizonia paniculata Scott D. White 2003-12-1 9892 Riverside Santa Ana River Valley; city of Riverside; La Sierra area 244 Comment
  UCR150559  Hemizonia paniculata Scott D. White 2003-12-1 9890 Riverside Santa Ana River Valley; city of Riverside; La Sierra area 244 Comment
  UCR161282  Hemizonia paniculata Chet McGaugh 2005-9-27 s.n. Riverside Santa Ana River Valley, Rubidoux, Riverview Drive and Avenue Juan Diaz, west of the Rubidoux Nature Center and c. 0.25 mi N of the Santa Ana River 220 Comment
  UCR166800  Hemizonia pungens subsp. laevis R. E. Riefner Jr. 2004-8-27 04- 397 Riverside N of La Sierra Heights; NE (c. 1 mi) off Arlington Avenue, along dirt access road to Hidden Valley Wildlife Reserve 207 Comment
  CLARK-A1528-4388  Hesperocnide tenella John C. Roos 1937-2-21 1296 Riverside La Sierra Comment
  CLARK-A1528-241  Heterotheca grandiflora Fred B. Essig 1966-9-12 Riverside Riverside Comment
  HSC83025  Heterotheca grandiflora S. Cantrell, Walter Appleby 1985-9-19 Riverside Santa Ana River Regional Park. S side of the river. 207 Comment
  JEPS20371  Heterotheca grandiflora W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 Riverside Santa Ana River Comment
  JEPS20372  Heterotheca grandiflora W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 Riverside Santa Ana River Comment
  UC63142  Heterotheca grandiflora H. M. Hall 1899-1-1 Riverside vicinity of Riverside Comment
  RSA453765  Hydrocotyle ranunculoides Lester H. Cushman 1932-5-15 15321 Riverside Near Pedley, Santa Ana River. Comment
  UCR109737  Hydrocotyle ranunculoides R. E. Orth 1963-3-8 s.n. Riverside Riverside, Santa Ana River 213 Comment
  UCR207604  Hydrocotyle ranunculoides O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  POM225666  Hymenothrix loomisii George Black 1936-11-4 s.n. Riverside Santa Fe Tracks at Southern end of Riverside, Comment
  UCR117718  Hypochaeris radicata Mitch Provance 1998-6-6 622 B Riverside City of Riverside, NE corner of Van Buren Blvd. and Central Ave. 229 Comment
  UCR182535  Ipomoea purpurea Mitch Provance 2003-7-4 4633 Riverside San Bernardino Valley, Riverside, 'Adams Hill', along the N. side of Raintree Ave., 0.2 mi. SW of Adams St., 0.3 mi. SE of Colorado Ave., c. 0.75 mi. SE of the Riverside Municipal Airport 238 Comment
  UCR120904  Iris pseudacorus A. C. Sanders 2002-4-20 25019 Riverside Upper Santa Ana River Valley/San Bernardino Valley region, Rancho Jurupa Park, county park off River Rd. near Rio Dr. 226 Comment
  RSA683230  Isocoma menziesii Scott D. White 2003-12-1 9893 Riverside Santa Ana River Valley; City of Riverside; (La Sierra area). 244 Comment
  SBBG81101  Isocoma menziesii S. Cantrell, W. Appleby 1985-9-19 Riverside Santa Ana River Regional Park, S side of river 207 Comment
  UCR281878  Isocoma menziesii Mitch Provance 2012-11-9 1112- 18 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  POM319665  Isocoma menziesii var. vernonioides Patricia Wilder 1971-11-11 5302 Riverside Along Santa Ana River, north off of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. Drainage Area: Santa Ana River. 229 Comment
  UCR115882  Isocoma menziesii var. vernonioides Mitch Provance 1999-5-6 1162 Riverside City of Riverside, Property adjacent to NW side of Hole Lake (nearly dry) and north of Parker Way. 226 Comment
  POM265663  Jepsonia parryi J. C. Roos 1937-11-23 2295 Riverside La Sierra. Comment
  UCR207809  Juglans californica O. F. Clarke 2004-3-14 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge 215 Comment
  UCR272494  Juglans californica Mitch Provance 2013-6-18 613- 31 Riverside Santa Ana River Valley, Riverside, Arlanza area, W side of Hole Lake and adjacent mesa. 226 Comment
  UCR108825  Juncus balticus O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR264640  Juncus balticus Mitch Provance 2013-4-8 413- 02 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR277704  Juncus balticus Mitch Provance 2013-4-16 413- 18 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR108836  Juncus effusus subsp. austrocalifornicus O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  RSA368245  Juncus mexicanus Lester H. Cushman 1932-5-8 s,n, Riverside Near Pedley, close to Santa Ana R. [River]. Comment
  UCR264608  Juncus mexicanus Mitch Provance 2012-6-19 196- 02 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR108835  Juncus rugulosus O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR108837  Juncus xiphioides O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR4088  Juncus xiphioides O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  SJSU7917  Keckiella antirrhinoides G. B. Youngberg 1956-3-20 225 Riverside near La Sierra College, Arlington 231 Comment
  UCR125203  Kochia scoparia Mitch Provance 1998-5-27 546 Riverside City of Riverside, Hillside area, along railroad tracks on the NW corner of Dewey St. and Streeter Ave. 238 Comment
  UC38730  Lamarckia aurea E. L. Koethen Apr., 1897 9 Riverside Riverside Comment
  UC914193  Lamarckia aurea H. S. Reed 1935-3-15 Riverside Riverside Comment
  CLARK-A1528-3099  Lamium amplexicaule John C. Roos 1938-3-12 1642 Riverside La Sierra Comment
  UCR207784  Lamium amplexicaule O. F. Clarke 2004-3-13 s.n. Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, along the Santa Ana River, West Riverside 226 Comment
  UCR265048  Lamium amplexicaule Mitch Provance 2013-4-8 413- 09 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  POM265699  Lastarriaea coriacea J. C. Roos 1937-5-2 1802 Riverside La Sierra, western Riverside. [Collection is Jack Frost Lake. aka Frost Reservoir, apparently a part of La Sierra, Loma Linda University Campus] ca. 1937 south of Indiana Avenue and west of Sayward Circle, near Pierce. Comment
  UC30436  Lasthenia californica E. L. Koethen 1897-4-1 17 Riverside plains, Riverside Riverside Comment
  CLARK-A1528-7804  Lasthenia coronaria John C. Roos 1938-4-4 1630 Riverside La Sierra Comment
  POM266308  Lasthenia coronaria J. C. Roos 1938-4-4 1630 Riverside La Sierra, Western Riverside County Comment
  RSA736568  Lasthenia gracilis Keith E. Hoffmaster 1935-3-3 839 Riverside Near Santa Ana River, north of Arlington. Comment
  UCR114321  Lavatera cretica Mitch Provance 1998-3-30 288 Riverside Riverside, Hillside area, NE corner of Phoenix and Arlington Aves., behind Taco Bell 232 Comment
  UCR109728  Leersia oryzoides T. W. Fisher 1963-11-12 s.n. Riverside Santa Ana River, Riverside 213 Comment
  UCR272484  Lepidium Mitch Provance 2013-6-16 613- 25 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, El Dorado Park on Warren St., about 0.35 mi W of Van Buren Blvd. 225 Comment
  UCR113898  Lepidium chalepense Mitch Provance 1998-4-13 430 Riverside City of Riverside, Vacant lot on Arlington Ave., between Hillside and Phoenix. 232 Comment
  UCR113899  Lepidium chalepense Mitch Provance 1998-4-13 431 Riverside City of Riverside, Vacant lot on corner of California Ave. and Monroe St. in the Arlington area of Riverside 229 Comment
  CLARK-A1528-2318  Lepidium dictyotum John C. Roos 1950-3-18 Riverside La Sierra College Comment
  UCR108833  Lepidium latifolium O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR216444  Lepidium latifolium Nolan M. Ung 2008-5-20 030 Riverside San Bernardino Valley Region, western Riverside near Pedley, Santa Ana River on the west side of Van Buren Blvd. bridge, north bank of the river 208 Comment
  UCR63882  Lepidium latifolium Marlene Braun 1989-4-30 18 Riverside Santa Ana River Valley, Hidden Valley Wildlife Refuge, Arlington Ave., 1 mi from Arlington Ave & California St. intersection in Norco 195 Comment
  UCR65276  Lepidium latifolium Steve Boyd 1989-7-23 3787 Riverside Santa Ana River, Riverside, just downstream of the old city dump at W extension of Rubidoux Ave. Comment
  CLARK-A1528-2326  Lepidium nitidum John C. Roos 1937-2-21 1313 Riverside La Sierra Comment
  UCR264639  Lepidium strictum Mitch Provance 2013-4-8 413- 06 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CAS-BOT-BC329447  Lepidospartum squamatum H. M. Hall 1899-8-2 1367 Riverside Gavilan Hills Region 2 mi. sw of Ferris 426 Comment
  RSA320341  Lepidospartum squamatum J. R. Shevock 1981-7-25 8838 Kern Along Caliente Creek wash adjacent to a riparian woodland. 2.5 miles N of Caliente, extreme southern end of the Piute Mountains. 457 Comment
  RSA659770  Leptochloa fusca subsp. uninervia J. C. Roos, L. Roos 1951-10-24 5332 Riverside Flats between Arlington and Pedley 229 Comment
  UCSB45529  Leptochloa fusca subsp. uninervia Roos, John; Roos, Lucille 1951-10-24 Riverside Flats between Arlington and Pedley 228 Comment
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Apr 2 2011
  CLARK-A1528-4715  Leptochloa uninervia John C. Roos, Lucille Roos 1951-10-24 5332 Riverside Riverside 228 Comment
  CLARK-A1528-71  Leptochloa uninervia Fred B. Essig 1966-9-12 Riverside Riverside Comment
  UCR26287  Leptochloa uninervia John C. Roos, L. Roos 1951-10-24 5332 Riverside City of Riverside, between Arlington area and Pedley 229 Comment
  UCR120206  Lessingia filaginifolia Mitch Provance 1998-3-5 194 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  POM361810  Lessingia glandulifera var. glandulifera Lester H. Cushman 1931-11-1 14234 Riverside Near Pedley, Santa Ana River Comment
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Dec 4 2011
  POM319687  Leymus triticoides Patricia Wilder 1971-11-11 5293 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  UCR3376  Limonium sinuatum John Minnich 1964-2-22 64-2-22- 6 Riverside Jurupa Hills, Pedley, vacant lot at corner of Archer and Limonite Streets. 244 Comment
  UCR6480  Linaria canadensis Helen Leach 1967-3-2 C670302- 01 Riverside Pedley 229 Comment
  CLARK-A1528-4218  Linaria canadensis var. texana John C. Roos 1938-4-4 733 Riverside La Sierra Comment
  CLARK-A1528-360  Lobularia maritima Fred B. Essig 1967-5-18 Riverside Riverside Comment
  CSUSB1431  Lobularia maritima A. P. Donaldson 1966-4-29 S. N. Riverside Collected on sidewalk in front of 3280 McKenzie Street 262 Comment
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Jun 16 2013
  UCR12587  Lolium perenne Robert Ferrone 1972-5-20 s.n. Riverside Riverside: along banks of Santa Ana River below Union Pacific Bridge near Jurupa Ave. 152 Comment
  CSUSB461  Lolium perenne subsp. multiflorum Richard Sayre 1972-5-20 Riverside Santa Ana River Santa Ana River; Jurupa Avenue, in city of Riverside. Comment
  POM266274  Lolium perenne subsp. multiflorum J. C. Roos 1937-5-2 1397 Riverside La Sierra, western Riverside. [Collection is Jack Frost Lake. aka Frost Reservoir, apparently a part of La Sierra [Loma Linda University Campus] ca. 1937 south of Indiana Avenue and west of Sayward Circle, near Pierce;, Owned by city of Riverside ca. 2000 Comment
  UC38797  Lolium temulentum E. A. Zumbro 1899-5-17 Riverside Riverside Comment
  UC70835  Lolium temulentum Geo. R. Hall Sept. 1904 Riverside Riverside Comment
  UC62927  Lotus oblongifolius var. oblongifolius H. M. Hall 1897-7-3 681 San Bernardino Santa Ana River Bottom Santa Ana River Comment
  UCR111768  Lotus strigosus Mitch Provance 1998-3-18 225 Riverside City of Riverside, Property along the W side of Stater Bros. near the corner of Colorado Ave. and Adams St. 241 Comment
  CLARK-A1528-6667  Ludwigia peploides Ken F. Clarke 1971-9-7 Riverside Santa Ana River Comment
  UCR23195  Ludwigia peploides subsp. peploides Jimbo Behrmann 1981-6-5 18 Riverside Santa Ana River Valley, Louis Rubidoux Nature Center, 1.5 mi. on Riverview Drive in Rubidoux 225 Comment
  UCR71613  Ludwigia repens A. C. Sanders, O. F. Clarke & CNPS field trip 1991-10-5 11747 Riverside Santa Ana River Valley, Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake Comment
  RSA549250  Ludwigia repens var. stipitata A. C. Sanders, O. F. Clarke 1991-10-5 11747 Riverside Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake. Comment
  CLARK-A1528-2820  Lupinus bicolor subsp. microphyllus John C. Roos 1938-4-4 732 Riverside La Sierra Comment
  CLARK-A1528-2839  Lupinus hirsutissimus John C. Roos 1938-4-4 731 Riverside La Sierra Comment
  CSUSB1452  Lupinus succulentus Leland E. Francois 1966-3-21 32166 6 Riverside City of Riverside 100 yards north of intersection of Van Buren Ave. and Acorn St., on Acorn St. Sandy soil along railroad tracks. 274 Comment
  CLARK-A1528-2853  Lupinus truncatus John C. Roos 1938-4-4 730 Riverside La Sierra Comment
  CLARK-A1528-2855  Lupinus truncatus John C. Roos 1937-5-2 1401 Riverside La Sierra Comment
  UCR120205  Lupinus truncatus Mitch Provance 1998-3-5 195 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  CLARK-A1528-4347  Lycium andersonii John C. Roos 1938-4-27 19 Riverside Riverside Comment
  JEPS11770  Lycium andersonii F. M. Reed 1842-12-5 Riverside Riverside Comment
  POM251786  Lycium andersonii J. C. Roos 1938-4-27 19 Riverside Hill west of Arlington. Comment
  RSA1922  Lycium andersonii var. deserticola B. D. Stark 1930-3-17 s.n. Riverside Mockingbird Canyon Dam Comment
  RSA13742  Lycopus americanus E. C. Jaeger 1921-08 1165 Riverside Riverside. Comment
  UCR6739  Lythrum californicum O. F. Clarke 1967-11-4 671104- 2 Riverside Santa Ana River channel, 0.25 mi. upstream from Salt Lake Railroad Bridge Comment
  CSUSB1553  Machaeranthera tephrodes Jeanne Cox 1973-7-17 S. N. Riverside Near 91 freeway 304 Comment
  GH420464  Malacothamnus fasciculatus E. C. Jaeger 1921-8-1 Unknown Riverside Comment
  UCR114324  Malacothrix saxatilis var. tenuifolia Mitch Provance 1998-5-2 485 Riverside Pedley, north side of Clay St., c. 1/8 mile east of intersection with Van Buren Blvd. 229 Comment
  POM265802  Malvella leprosa J. C. Roos 1937-5-23 2308 Riverside La Sierra, West Riverside County Comment
  UCR272498  Malvella leprosa Mitch Provance 2013-6-18 613- 33 Riverside Santa Ana River Valley, Riverside, Arlanza area, W side of Hole Lake and adjacent mesa. 226 Comment
  UCR272499  Malvella leprosa Mitch Provance 2013-6-16 613- 23 B Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, about 0.4 mi W of Van Buren 226 Comment
  UCR278868  Malvella leprosa Mitch Provance 2011-6-9 17196 Riverside Santa Ana River Valley, Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  CSUSB1680  Marrubium vulgare Jeanne Cox 1973-7-16 Riverside Near 91 freeway in Riverside. 304 Comment
  UCR120167  Matricaria matricarioides Mitch Provance 1998-3-5 188 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  CSUSB1095  Medicago sativa Arthur P. Donaldson 1966-3-16 Riverside Collected in front of the Arlington Flower Shop at 9693 Magnolia Ave., Arlington, Ca. 259 Comment
  CLARK-A1528-4727  Melica imperfecta John C. Roos 1937-5-2 1419 Riverside La Sierra Comment
  CLARK-A1528-73  Melica imperfecta Fred B. Essig 1964-2-24 Riverside La Sierra Comment
  CLARK-A1528-2861  Melilotus albus John C. Roos 1965-7-3 Riverside Riverside Comment
  CLARK-A1528-508  Melilotus albus Ken F. Clarke 1971-9-7 Riverside Riverside Comment
  CLARK-A1528-509  Melilotus albus Fred B. Essig 1964-2-20 14 Riverside La Sierra 609 Comment
  CLARK-A1528-511  Melilotus albus Ken F. Clarke 1971-9-7 Riverside Riverside Comment
  UCR41432  Melilotus albus Scott Cantrell, W. Appleby 1985-9-19 s.n. Riverside Santa Ana River Regional Park. south side of the river 207 Comment
  UCR71616  Mentha aquatica A. C. Sanders, O. F. Clarke & CNPS field trip 1991-10-5 11746 Riverside Santa Ana River Valley, Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake Comment
  POM13741  Mentha canadensis E. C. Jaeger 1921-8-21 1164 Riverside Riverside. Comment
  RSA549249  Mentha canadensis A. C. Sanders, O. F. Clarke 1991-10-5 11746 Riverside Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake. Comment
  POM10382  Mentzelia affinis Charlotte M. Wilder 1906-05 7 Riverside Salt Lake fill [Salt Lake RR Bridge over Santa Ana River, Riverside] Comment
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Sep 4 2011
  UCR113888  Mimulus aurantiacus var. pubescens Mitch Provance 1998-4-10 417 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  CSUSB1923  Mimulus guttatus Debbie Vigneault 1974-7-8 Riverside Santa Ana River Santa Ana River bottom, near Van Buren Blvd. 259 Comment
  CSUSB947  Mimulus guttatus Linda Stangor Riverside Santa Ana River Santa Ana River bottom, near old railroad bridge. Comment
  UCR15997  Mimulus guttatus S. Nelson 1974-5-9 s.n. Riverside Santa Ana River Park 244 Comment
  UCR216241  Mimulus guttatus Oleg Pryadko 2008-5-2 052 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR265019  Mimulus guttatus Mitch Provance 2013-4-8 413- 14 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CLARK-A1528-4258  Mimulus longiflorus John C. Roos 1937-5-2 1400 Riverside La Sierra Comment
  CLARK-A1528-867  Mimulus longiflorus Fred B. Essig 1964-2-24 20 Riverside La Sierra 670 Comment
  UCR216246  Mimulus pilosus Oleg Pryadko 2008-5-2 087 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  CLARK-A1528-870  Mimulus puniceus Fred B. Essig 1964-2-24 18 Riverside La Sierra 670 Comment
  UCR277701  Modiola caroliniana Mitch Provance 2013-4-16 413- 22 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CLARK-A1528-414  Monolepis nuttalliana Oscar F. Clarke 1970-9-24 Riverside Riverside Comment
  OBI41022  Monolepis nuttalliana Oscar F. Clarke 1970-9-24 s.n. Riverside Along the Santa Ana river bottom just E of old Salt Lake river Bridge, Riverside Comment
  RSA304548  Monolepis nuttalliana O. F. Clarke 1970-9-24 s.n. Riverside Santa Ana River bottom just east of the old Salt Lake River Bridge, Riverside. Comment
  UCR17343  Monolepis nuttalliana O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  UC53724  Muhlenbergia asperifolia E. L. Koethen 1897-8-12 1 Riverside Riverside Comment
  CLARK-A1528-4755  Muhlenbergia microsperma John C. Roos 1937-5-1 1406 Riverside La Sierra Comment
  UCR19374  Muhlenbergia microsperma John C. Roos 1937-5-1 1406 Riverside La Sierra Campus of Loma Linda Univ. Comment
  UCR222401  Myoporum insulare A. C. Sanders, Andrew Chen 2011-1-5 38704 Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, Santa Ana River, Jurupa area of Riverside, SE of Riverview Dr. and west of Rio Rd. 223 Comment
  CAS-BOT-BC243703  Myoporum laetum A. C. Sanders 2003-1-14 25664 Riverside Lois Rubidoux Nature Center, Santa Ana River, Riversdie WEst 7.5' Q., San Bernardino Valley Region 219 Comment
  RSA0010810  Myoporum laetum A. C. Sanders 2003-1-14 25664 Riverside San Bernardino Valley Region: Louis Rubidoux Nature Center, Santa Ana River. 220 Comment
  UCR125283  Myoporum laetum A. C. Sanders 2003-1-14 25664 Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, Santa Ana River 220 Comment
  RSA388844  Najas marina Richard Yeo 1977-6-17 s.n. Riverside Canyon Lake, ca. 3.5 miles southeast of Arlington Comment
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Dec 2 2014
  UCD138165  Najas marina Richard Yeo 1977-6-17 s.n. Riverside Canyon Lake, ca. 3.5 miles southeast of Arlington. Comment
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Dec 2 2014
  CAS-BOT-BC259973  Nassella lepida I. M. Johnston 1917-6-5 1301 Riverside Hills S of Arlington 365 Comment
  POM1087  Nassella lepida I. M. Johnston 1917-6-5 1301 Riverside Hills south of Arlington 366 Comment
  POM266628  Nassella lepida J. C. Roos 1937-5-2 1395 Riverside La Sierra, western Riverside. [Collection is Jack Frost Lake. aka Frost Reservoir, apparently a part of La Sierra [Loma Linda University Campus] ca. 1937 south of Indiana Avenue and west of Sayward Circle, near Pierce;, Owned by city of Riverside ca. 2000 Comment
  UCR17617  Navarretia hamata O. F. Clarke, J. M. Harper, Helen Leach 1966-5-27 s.n. Riverside Santa Ana River bottom below the city sewage treatment plant Comment
  UCR265850  Nicotiana Mitch Provance 2013-4-8 413- 10 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CLARK-A1528-884  Nicotiana bigelovii C. M. Flanagan 1973-5-22 OO 903 Riverside Rubidoux 228 Comment
  CLARK-A1528-887  Nicotiana glauca Fred B. Essig 1966-9-12 Riverside Riverside Comment
  UC444935  Nicotiana quadrivalvis F. M. Reed 1905-9-25 247 Riverside Riverside Comment
  POM13743  Nitrophila occidentalis E. C. Jaeger 1921-8-1 1166 Riverside Along river at Riverside. Comment
  CLARK-A1528-3541  Notholaena newberryi John C. Roos 1936-11-21 Riverside La Sierra Comment
  CLARK-A1528-3582  Notholaena newberryi John C. Roos 1937-5-2 1412 Riverside La Sierra Comment
  POM265814  Oenothera laciniata J. C. Roos 1936-5-15 2259 Riverside La Sierra, western Riverside Co. Comment
  CSUSB1322  Oenothera speciosa Deborah Sullivan 1973-7-17 Riverside Pedley, Riverside. 243 Comment
  UCR6153  Oenothera speciosa A. P. Donaldson 1966-4-11 s.n. Riverside 0.4 mi from the corner of Van Buren and Magnolia Ave. toward the Riverside Freeway in Arlington 259 Comment
  CAS-BOT-BC383075  Oncosiphon piluliferum R. E. Riefner, Jr. 2014-6-1 14 -141 Riverside Northeast of Norco, E of Eastvale, Community of La Sierra, Hidden Valley Wildlife Area, Santa Ana River Trail, ca. 0.6 mi N of Arlington Ave. 205 Comment
  UCR216240  Oncosiphon piluliferum Oleg Pryadko 2008-5-2 051 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR252209  Oncosiphon piluliferum J. Mendoza 2011-5-13 s.n. Riverside Santa Ana River Regional Park near Louis Rubidoux Nature Center 221 Comment
  RSA381559  Opuntia leucotricha A. C. Sanders, M. Bogen 1987-5-28 7105 -B Riverside Riverside; a roadside waif on fill along van Buren Blvd. Near the bridge over the Santa Ana River. at Riverside sewer plant. 244 Comment
  SEINET2057439  Opuntia leucotricha Mira M. Bogen, W. H. Earle 1987-5-10 Riverside Along Van Buren Blvd. between bridge over Santa Ana River and sewer plant, dirsturbed area by raodside. 210 Comment
  UCR47518  Opuntia leucotricha A. C. Sanders, Mira M. Bogen 1987-5-28 7105 B Riverside City of Riverside, along Van Buren Boulevard, near the bridge over the Santa Ana River, at Riverside sewer plant 244 Comment
  UCR99181  Oxalis rubra W. W. Mayhew 1991-4-24 s.n. Riverside city of Riverside, 6954 Coronado Way. Comment
  POM78993  Panicum capillare I. M. Johnston 1925-7-19 s.n. Riverside Pedley-Arlington Road. Comment
  UCR3744  Panicum capillare O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  CLARK-A1528-4391  Parietaria floridana John C. Roos 1937-2-21 1310 Riverside La Sierra Comment
  SBBG104653  Paspalum dilatatum M. A. Patten 1992-5-27 92 -18 San Bernardino Green River Golf Club 152 Comment
  POM319685  Paspalum distichum Patricia Wilder 1971-11-11 5292 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  UC53709  Paspalum distichum E. L. Koethen 1897-8-12 7 Riverside Riverside Comment
  UCR239797  Pectocarya linearis O. F. Clarke 2004-3-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  CLARK-A1528-927  Pectocarya linearis subsp. ferocula Patricia A. Andrews 1975-3-13 5901 Riverside Rubidoux Comment
  UCR239798  Pectocarya penicillata O. F. Clarke 2004-3-14 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge 215 Comment
  CLARK-A1528-2252  Pectocarya platycarpa John C. Roos 1937-5-2 1838 Riverside Frost Reservoir Comment
  CLARK-A1528-3588  Pellaea andromedifolia John C. Roos 1937-5-2 1417 Riverside La Sierra Comment
  UCR120159  Pennisetum setaceum Mitch Provance 1998-3-5 185 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  SBBG81107  Persicaria lapathifolia S. Cantrell, W. Appleby 1985-9-19 Riverside Santa Ana River Regional Park, S side of river 207 Comment
  SD114138  Persicaria lapathifolia Darley F. Howe 1945-9-21 1365 Riverside Ditch by road, Arlington Comment
  RSA427681A  Phacelia brachyloba N. C. Cooper 1949-10-12 1389 Riverside San Jacinto Mountains: above Banning, dry rock crevice in road cut. 1372 Comment
  UCR215971  Phacelia brachyloba Oleg Pryadko 2008-5-2 059 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR90049  Phacelia cicutaria var. hispida P. F. Horner 1972-5-2 37 Riverside Santa Ana River Valley, Riverside, Santa Ana River bottom, near Union Pacific Railroad Bridge 213 Comment
  CSUSB132  Phacelia distans Karen Cook 1966-5-16 Riverside Santa Ana River bottom, east of Van Buren Ave. in city of Riverside. 182 Comment
  UCR134646  Phacelia distans Mitch Provance 1998-4-10 416 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  SJSU11224  Phacelia minor G. B. Youngberg 1956-3-27 178 Riverside near La Serra College, Arlington 300 Comment
  SEINET954243  Phalaris aquatica Mitch Provance, Brett Provance 2005-1 5700 Riverside San Bernardino Valley; Riverside (Arlington Heights area), SE corner of Cleveland Ave. and Irvine St. (inc. about 50 yards E on Cleveland). 277 Comment
  UCR182301  Phalaris aquatica Mitch Provance, Brett Provance 2005-5-27 5700 Riverside San Bernardino Valley, Riverside (Arlington Heights area), SE corner of Cleveland Ave. and Irvine St. (inc. about 50 yards E on Cleveland) 277 Comment
  UC76970  Phalaris canariensis F. M. Reed 1904-5-24 589 Riverside Riverside Comment
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Oct 14 2013
  UCR265849  Phalaris minor Mitch Provance 2013-4-8 413- 05 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  JEPS8969  Physalis philadelphica Mr. McGraw 1904-1 Riverside Riverside Comment
  UC64878  Physalis philadelphica H. M. Hall 1897-7-3 Riverside near Riverside Comment
  CLARK-A1528-2029  Picris echioides John C. Roos 1937-5-23 2060 Riverside La Sierra Comment
  UCR265847  Piptatherum miliaceum Mitch Provance 2013-4-8 413- 16 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR67003  Piptatherum miliaceum S. J. Myers 1990-12-10 s.n. Riverside Santa Ana River Valley, Louis Rubidoux Nature Center: along the drainage that connects to the Sunnyslope channel and to the confluence with the Santa Ana River 214 Comment
  CDA22276  Pipturus skottsbergii Carl Yonge 1962-11-2 Riverside Mrs. John Day property, 6582 Mitchell Street, Arlington. 0 Comment
  CDA22277  Pipturus skottsbergii Carl Yonge 1962-11-2 Riverside Mrs. John Day property, 6582 Mitchell Street, Arlington. 0 Comment
  CLARK-A1528-3591  Pityrogramma triangularis John C. Roos 1936-11-21 Riverside La Sierra Comment
  RSA661316  Plagiobothrys collinus var. californicus Mitch Provance 1998-4-10 410 Riverside E facing slopes of hills at W extreme of Cypress Ave. 305 Comment
  UCR134643  Plagiobothrys collinus var. californicus Mitch Provance 1998-4-10 410 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  UCR6298  Plagiobothrys collinus var. californicus Helen Leach 1967-3-2 670302- 3 Riverside Pedley 229 Comment
  CLARK-A1528-340  Plagiobothrys nothofulvus unknown 1966-3-24 Riverside Pedley Comment
  CLARK-A1528-3431  Plantago erecta John C. Roos 1937-2-21 1311 Riverside Riverside Comment
  CLARK-A1528-3434  Plantago erecta John C. Roos 1937-3-5 1300 Riverside La Sierra Comment
  RSA660904  Plantago erecta Mitch Provance 1998-4-9 407 Riverside VABM 1031, Hill traditionally called ''Lionshead'', or variously referred to as ''Challen Hill'', located near the corner of Harrison St. and California Ave. in the Arlington area of the city of Riverside. 259 Comment
  UCR113886  Plantago erecta Mitch Provance 1998-4-9 407 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or variously referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 259 Comment
  UC124605  Plantago lanceolata Geo. R. Hall 1908-1 8485 Riverside Riverside Comment
  UCR338  Platanus racemosa Eugene Cardiff, Ken Smith 1954-4-5 s.n. Riverside San Bernardino Valley Region, Santa Ana River, near Pedley 207 Comment
  CLARK-A1528-280  Pluchea purpurascens Ken F. Clarke 1971-9-7 Riverside Santa Ana River Comment
  CLARK-A1528-282  Pluchea purpurascens Fred B. Essig 1966-9-12 Riverside Santa Ana River Comment
  CLARK-A1528-283  Pluchea sericea John C. Roos, Lucille Roos 1951-10-24 5340 Riverside Pedley 228 Comment
  CLARK-A1528-5377  Pluchea sericea John C. Roos, Lucille Roos 1951-10-24 5340 Riverside Pedley 228 Comment
  POM319673  Pluchea sericea Patricia Wilder 1971-11-11 5305 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  CLARK-A1528-84  Poa annua Fred B. Essig 1964-2-20 15 Riverside La Sierra 609 Comment
  UC1713243  Poa annua unknown April 1917 Riverside Riverside Comment
  RSA271429  Polygala cornuta var. fishiae C. W. Tilforth, J. Dourley, W. Wisura 1978-5-8 1601 Ventura Wheeler Gorge along Hwy 33 north of Ojai Comment
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Nov 9 2018
  UCR17333  Polygonum argyrocoleon O. F. Clarke 1978-10-20 s.n. Riverside Riverside; Rubidoux area, 0.5 mi. north of Santa Ana River, north side of Limonite, 0.3 mi west of Clay St. intersection Comment
  UCR67000  Polygonum hydropiperoides S. J. Myers 1990-12-5 s.n. Riverside Santa Ana River, Louis Rubidoux Nature Center, along drainage that connects to Sunnyslope Channel, and to the confluence with the Santa Ana River 213 Comment
  CLARK-A1528-760  Polygonum lapathifolium Fred B. Essig 1966-9-12 Riverside Riverside Comment
  POM10481  Polygonum lapathifolium F. M. Reed 1904-11-6 s.n. Riverside River bottom at Evans Ranch, Riverside Comment
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Jul 4 2010
  UCR16526  Polygonum lapathifolium Emily E. McGregor 1972-4-15 s.n. Riverside Santa Ana River bottom, off Fremont Drive Comment
  RSA528096  Polygonum punctatum S. J. Myers 1990-12-5 s.n. Riverside Louis Rubidoux Nature Center: along the drainage that connects to the Sunnyslope Channel, and to the confluence with the Santa Ana River. (Near 33d 58'N, 117D 27'W) 213 Comment
  UC39738  Polypogon interruptus E. L. Koethen 1897-8-12 4 Riverside Riverside Comment
  CLARK-A1528-87  Polypogon monspeliensis Fred B. Essig 1967-6-22 Riverside Santa Ana River Comment
  CSUSB467  Polypogon monspeliensis Richard Sayre 1972-5-20 Riverside Santa Ana River Santa Ana River; Jurupa Avenue, in city of Riverside. Comment
  CSUSB468  Polypogon monspeliensis Emily E. McGregor 1972-4-15 Riverside Santa Ana River Santa Ana River bottom, off Freemont Drive. Comment
  UCSB40899  Polypogon monspeliensis Roos, John 1939-5-13 Riverside La Sierra Comment
  CLARK-A1528-835  Populus fremontii Ken F. Clarke 1971-9-7 Riverside Riverside Comment
  CSUSB805  Populus fremontii Eugene Cardiff, Ken Smith 1954-4-5 Riverside Santa Ana River Santa Ana River near Pedly. Comment
  UCR16998  Populus fremontii Arthur Douglas 1969-5-22 25 Riverside Near Arlington. Below W end of Fremont Street, in vicintiy of Santa Ana River 183 Comment
  UCR239841  Populus fremontii O. F. Clarke 2004-7-5 s.n. Riverside Louis Rubidoux Nature Center at RR bridge, Santa Ana River near Riverside 155 Comment
  POM360816  Populus trichocarpa Lester H. Cushman 1931-10 s.n. Riverside Near Pedley. Comment
  UC420632  Portulaca oleracea F. M. Reed 1905-9-25 Riverside Riverside Comment
  UCR206970  Portulaca oleracea Mike Misenhelter 2009-7-29 s.n. Riverside Peninsular Range/ San Bernardino Valley, Riverside; Arlington area, west side of Van Buren Blvd. at north side of Lincoln St., across from drive-in theater 259 Comment
  UCR17217  Prunella vulgaris D. Gordon 1952-6-23 s.n. Riverside Riverside Comment
  UCR179752  Prunus cerasifera Mitch Provance 1996-3-5 1076 Riverside Santa Ana River Wash, Anza Narrows Park 232 Comment
  UCR134645  Pseudognaphalium biolettii Mitch Provance 1998-4-10 412 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  UCSB38387  Pseudognaphalium californicum Ferro, Margaret 1970-5-20 Riverside 1/2 mile west of Riverside city dump 457 Comment
  SEINET13276756 Image available Pseudognaphalium luteoalbum Mitch Provance 2012-1 196 -06 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave (Riverside 7.5' Q.) 226 Comment
  UCR264630  Pseudognaphalium ramosissimum Mitch Provance 2012-6-19 196- 06 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  RSA0116456  Pseudognaphalium stramineum R. G. Swinney 2011-6-9 17194 Riverside Santa Ana River Valley: Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  UCR278886  Pseudognaphalium stramineum Mitch Provance 2011-6-9 17194 Riverside Santa Ana River Valley, Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  RSA249100  Pulicaria hispanica O. F. Clarke 1972-9-17 s.n. Riverside Santa Ana river bottom. Adjacent river view drive Rubidoux Comment
  UCR14545  Pulicaria paludosa O. F. Clarke 1974-11-14 s.n. Riverside Riverside, Santa Ana Riverbottom Park Comment
  UCSB37360  Pulicaria paludosa Clarke, O. 1972-9-17 Riverside Santa Ana river bottom Comment
  UCSB49861  Pulicaria paludosa Clarke, O. 1972-9-17 Riverside Santa Ana river bottom Comment
  UC162735  Ranunculus cymbalaria var. saximontanus H. M. Hall 1897-7-3 680 San Bernardino Santa Ana River 1371 Comment
  CLARK-A1528-361  Raphanus sativus Fred B. Essig 1966-5-21 Riverside Santa Ana River Comment
  CLARK-A1528-362  Raphanus sativus John C. Roos, Lucille Roos 1951-10-24 5342 Riverside Pedley 243 Comment
  CLARK-A1528-5387  Raphanus sativus John C. Roos, Lucille Roos 1951-10-24 5342 Riverside Pedley 243 Comment
  CLARK-A1528-120  Rhus trilobata var. pilosissima Fred B. Essig 1967-3-18 Riverside Riverside Comment
  CLARK-A1528-372  Rorippa nasturtium-aquaticum Margaret Ferro 1970-5-16 21 Riverside West Riverside 365 Comment
  CLARK-A1528-4880  Rorippa nasturtium-aquaticum John C. Roos 1937-5-23 2341 Riverside La Sierra Comment
  CSUSB1434  Rorippa nasturtium-aquaticum Rose Gagnon 1968-5-14 680514 1 Riverside On north bank of Santa Ana River where Salt Lake City bridge is located Comment
  CSUSB1439  Rorippa nasturtium-aquaticum D. Vander Ven 1968-5-1 S. N. Riverside Santa Ana River Santa Ana River, in water along the south bank of island just west of the railroad bridge near Freemont Street, Riverside; 35 feet from east end of island 213 Comment
  CSUSB1441  Rorippa nasturtium-aquaticum R. Sayre 1972-5-20 S.N. Riverside Santa Ana River Santa Ana River, Riverside, Jurupa Ave Comment
  CSUSB501  Rorippa nasturtium-aquaticum M. Quinlan 1974-5-25 S.N. Riverside Found in Riverside county on the bank of the Santa Ana River about 1 mile form the Riverside Municipal Airport in Riverside 266 Comment
  CSUSB503  Rorippa nasturtium-aquaticum S. Nelson 1974-5-9 S. N. Riverside Santa Ana River Park, found growing in water near river bank 243 Comment
  SD133008  Rosa californica Stephen Meyers 1990-12-10 Riverside Louis Rubidoux Nature Center: along the drainage that connects to the Sunnyslope Channel, & to the confluence with the Santa Ana River 700 Comment
  UCR975  Rosa californica S. C. Anderson 1957-5-21 s.n. Riverside Riverside, Santa Ana River bottom, 0.5 mi. east of Humane Society, north of Jurupa Ave. [near Union Pacific RR bridge] 220 Comment
  RSA0086464  Rubus ursinus Mitch Provance 2013-4-8 413 -11 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave. 226 Comment
  UCR216443  Rubus ursinus Nolan M. Ung 2008-5-20 032 Riverside San Bernardino Valley Region, western Riverside near Pedley, Santa Ana River on the west side of Van Buren Blvd. bridge, north bank of the river 208 Comment
  UCR265047  Rubus ursinus Mitch Provance 2013-4-8 413- 11 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR216251  Rumex pulcher Oleg Pryadko 2008-5-2 079 Riverside San Bernardino Valley Region, western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR182861  Rumex violascens Mitch Provance, Brett Provance 2005-5-27 5701 Riverside San Bernardino Valley, Riverside (Arlington Heights area), SE corner of Cleveland Ave. and Irvine St. (inc. about 50 yards E on Cleveland) 277 Comment
  CLARK-A1528-834  Salix Ken F. Clarke 1971-9-7 Riverside Riverside Comment
  A382609  Salix exigua N. F. Bracelin 1932-4-12 601 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  CAS-BOT-BC103891  Salix exigua 1932-4-12 s.n. Riverside unspecified Comment
  CAS-BOT-BC103898  Salix exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 240 Comment
  CAS-BOT-BC103899  Salix exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 240 Comment
  GH382615  Salix exigua N. F. Bracelin 1932-4-12 601 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  LA208610  Salix exigua Mrs. H. P. Bracelin; 1932-4-12 601 Riverside E side of bridge over Santa Ana River, 4.8 km. N of Arlington on rd to Pedley, W of Riverside 240.0 Comment
  POM184902  Salix exigua H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  POM184904  Salix exigua H. P. Bracelin 1932-4-12 602 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  POM184905  Salix exigua H. P. Bracelin 1932-4-12 605 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  POM262925  Salix exigua J. C. Roos 1937-5-23 617 Riverside La Sierra. Comment
  POM281401  Salix exigua H. P. Bracelin 1932-4-12 601 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  POM319629  Salix exigua Patricia Wilder 1971-11-11 5294 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  RSA6465  Salix exigua H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  RSA6466  Salix exigua H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  SBBG27490  Salix exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside E side of bridge over Santa Ana River, 4.8 km N of Arlington on rd to Pedley, W of Riverside 240 Comment
  SBBG58870  Salix exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside E side of bridge over Santa Ana River, 4.8 km N of Arlington on rd to Pedley, W of Riverside 240 Comment
  SJSU162  Salix exigua Mrs. H. P. Bracelin 1932-4-12 600 Riverside E side of bridge over Santa Ana R, 4.8km N of Arlington on rd to Pedley, W of Riverside 243 Comment
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Mar 26 2011
  SJSU204  Salix exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside E side of bridge over Santa Ana R, 4.8 km N of Arlington on rd to Pedley, W of Riverside 243 Comment
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Mar 26 2011
  SJSU242  Salix exigua Mrs. H. P. Bracelin 1932-4-12 599 Riverside E side of bridge over Santa Ana R, 4.8 km N of Arlington on rd to Pedley, W of Riverside Comment
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Mar 26 2011
  SJSU258  Salix exigua Mrs. H. P. Bracelin 1932-4-12 602 Riverside E side of bridge over Santa Ana R, 4.8 km N of Arlington on rd to Pedley, W of Riverside 240 Comment
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Mar 26 2011
  UC498686  Salix exigua Mrs. H. P. Bracelin 1932-4-12 602 Riverside 4.8 km. n Arlington (4 mi w of Riverside, e side of bridge over Santa Ana R., on rd. to Pedley) 240 Comment
  UC498787  Salix exigua Mrs. H. P. Bracelin 1932-4-12 603 Riverside 4.8 km. n Arlington (on rd. to Pedley, w of Riverside, e side of bridge over Santa Ana R.) 240 Comment
  UC498790  Salix exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside 4.8 km. n of Arlington (on rd. to Pedley, w of Riverside, e side of bridge over Santa Ana R., base of embankment either side of hwy.) 240 Comment
  UCD110875  Salix exigua Mrs. H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  UCR11299  Salix exigua O. F. Clarke, M. Alexander 1971-3-31 s.n. Riverside Santa Ana River Bottom, Union Pacific Bridge 213 Comment
  SD11879  Salix exigua var. exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside East side of bridge over Santa Ana River, 4.8 km north of Arlington on road to Pedley, west of Riverside 239 Comment
  SD11898  Salix exigua var. exigua Mrs. H. P. Bracelin 1932-4-12 601 Riverside East side of bridge over Santa Ana River, 4.8 km north of Arlington on road to Pedley, west of Riverside 239 Comment
  LA208628  Salix exigua var. hindsiana Mrs. H. P. Bracelin; 1932-4-12 599 Riverside E side of bridge over Santa Ana River, 4.8 km. N of Arlington on rd to Pedley, W of Riverside 240.0 Comment
  LA208629  Salix exigua var. hindsiana Mrs. H. P. Bracelin; 1932-4-12 602 Riverside E side of bridge over Santa Ana River, 4.8 km. N of Arlington on rd to Pedley, W of Riverside 240.0 Comment
  LA208685  Salix exigua var. hindsiana Mrs. H. P. Bracelin; 1932-4-12 600 Riverside E side of bridge over Santa Ana River, 4.8 km. N of Arlington on rd to Pedley, W of Riverside 240.0 Comment
  SBBG29056  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-13 602 Riverside E side of bridge over Santa Ana River, 4.8 km N of Arlington on rd to Pedley, W of Eiverside 240 Comment
  SBBG58920  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 600 Riverside E side of bridge over Santa Ana River, 4.8 km N of Arlington on rd to Pedley, W of Riverside 240 Comment
  SBBG58926  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 599 Riverside E side of bridge over Santa Ana River, 4.8 km N of Arlington on rd to Pedley, W of Riverside 240 Comment
  SBBG58927  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 605 Riverside E side of bridge over Santa Ana River, 4.8 km N of Arlington on rd to Pedley, W of Riverside 240 Comment
  SBBG58934  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-13 602 Riverside E side of bridge over Santa Ana River, 4.8 km N of Arlington on rd to Pedley, W of Riverside 240 Comment
  SD1014  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 600 Riverside East side of the bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 239 Comment
  SD1018  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 602 Riverside East side of the bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 239 Comment
  SD1019  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 239 Comment
  UC494325  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 604 Riverside 4.8 km. n Arlington (rd. to Pedley, w of Riverside, e side of bridge over Santa Ana R.) 240 Comment
  UC494326  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 605 Riverside 4.8 km. n Arlington (4 mi w of Riverside, rd. to Pedley, e side of bridge over Santa Ana River, either side of rd.) 240 Comment
  UC494328  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 606 Riverside 4.8 km. n Arlington (4 mi. w of Riverside, rd. to Pedley, e side of bridge over Santa Ana R., either side of hwy.) 240 Comment
  UC494329  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 606 Riverside 4.8 km. n Arlington (w of Riverside, rd. to Pedley, e side of bridge over Santa Ana R., either side of hwy.) 240 Comment
  UC494348  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 599 Riverside 4.8 km. n Arlington (w of Riverside, rd. to Pedley, e side of bridge over Santa Ana River, either side of rd.) 240 Comment
  UC494349  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1932-4-12 600 Riverside 4.8 km. n Arlington (on rd. to Pedley, 4 mi w of Riverside, e side of bridge over Santa Ana R., down embankment either side of hwy.) 240 Comment
  UC55027  Salix exigua var. hindsiana S. B. Parish 1888-5-20 2040 San Bernardino river bank near Riverside; Santa Ana River; bank of Santa Ana River, Riverside, San Bernardino Co. Comment
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Dec 1 2014
  CAS-BOT-BC108103  Salix gooddingii I. Johnston 1917-6-5 1235 Riverside Hills south of Arlington 365 Comment
  CLARK-A1528-831  Salix gooddingii Oscar Clarke 1971-3-31 Riverside Riverside Comment
  POM319096  Salix gooddingii Patricia Wilder 1971-11-11 5295 Riverside Along Santa Ana River, north of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. 229 Comment
  UC846813  Salix gooddingii I. Johnston 1917-6-5 1235 Riverside fills s of Arlington 365 Comment
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Mar 30 2011
  UCR216445  Salix gooddingii Nolan M. Ung 2008-5-20 028 Riverside San Bernardino Valley Region, western Riverside near Pedley, Santa Ana River on the west side of Van Buren Blvd. bridge, north bank of the river 208 Comment
  A382889  Salix hindsiana N. F. Bracelin 1932-4-12 600 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  A382914  Salix hindsiana N. F. Bracelin 1932-4-12 599 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  A382915  Salix hindsiana N. F. Bracelin 1932-4-12 605 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  A383124  Salix hindsiana N. F. Bracelin 1932-4-12 602 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  CAS-BOT-BC108213  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 605 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  CAS-BOT-BC108214  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  CAS-BOT-BC108215  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  CAS-BOT-BC108216  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 602 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  CAS-BOT-BC108217  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  GH382907  Salix hindsiana N. F. Bracelin 1932-4-12 606 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  GH382908  Salix hindsiana N. F. Bracelin 1932-4-12 600 Unknown East side of bridge over Sanrta Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  GH382965  Salix hindsiana N. F. Bracelin 1932-4-12 599 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  GH382966  Salix hindsiana N. F. Bracelin 1932-4-12 602 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  GH383125  Salix hindsiana N. F. Bracelin 1932-4-12 605 Unknown East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside Comment
  POM184903  Salix hindsiana H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  CLARK-A1528-4054  Salix hindsiana var. leucodendroides John C. Roos 1937-5-23 617 Riverside Riverside Comment
  PASA2676  Salix hindsiana var. leucodendroides Mrs. H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside, Riverside County 240 Comment
  PASA2679  Salix hindsiana var. leucodendroides Mrs. H. P. Bracelin 1932-4-12 602 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside, Riverside County 240 Comment
  POM319276  Salix laevigata Patricia Wilder 1971-11-11 5310 Riverside Along Santa Ana River, north off of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. Drainage Area: Santa Ana River. 229 Comment
  UCR11307  Salix laevigata O. F. Clarke, M. Alexander 1971-3-31 s.n. Riverside Santa Ana River Bottom, Union Pacific Bridge 213 Comment
  CSUSB919  Salix lasiandra Oscar F. Clarke, M. Alexander 1971-3-31 Riverside Santa Ana River Santa Ana River bottom, in (city of) Riverside. Union Pacific Bridge. Comment
  POM319100  Salix lasiolepis Patricia Wilder 1971-11-11 5300 Riverside Along Santa Ana River, north off of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. Drainage Area: Santa Ana River. 229 Comment
  UCR109734  Salix lasiolepis R. E. Orth 1963-3-8 s.n. Riverside Riverside, Santa Ana River 213 Comment
  POM319277  Salix lucida subsp. lasiandra Patricia Wilder 1971-11-11 5297 Riverside Along Santa Ana River, north off of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. Drainage Area: Santa Ana River. 229 Comment
  UCR11306  Salix lucida subsp. lasiandra O. F. Clarke, M. Alexander 1971-3-31 s.n. Riverside Santa Ana River Bottom, Union Pacific Bridge 213 Comment
  UCR13438  Salix lucida subsp. lasiandra Mike McCloskey 1973-5-10 s.n. Riverside Riverside, Santa Ana River bed a few hundred yards east of Union Pacific RR crossing 229 Comment
  CAS-BOT-BC126316  Salix sessilifolia Mrs. H. P. Bracelin 1932-4-12 602 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 240 Comment
  CAS-BOT-BC126317  Salix sessilifolia Mrs. H. P. Bracelin 1932-4-12 605 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 240 Comment
  CAS-BOT-BC126318  Salix sessilifolia Mrs. H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 240 Comment
  CAS-BOT-BC126319  Salix sessilifolia Mrs. H. P. Bracelin 1932-4-12 602 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 240 Comment
  CAS-BOT-BC126320  Salix sessilifolia Mrs. H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside 240 Comment
  UCR207624  Salsola O. F. Clarke 2004-3-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  CLARK-A1528-416  Salsola iberica Fred B. Essig 1966-9-12 Riverside Santa Ana River Comment
  UCR208348  Salvia columbariae O. F. Clarke 2004-3-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  CLARK-A1528-2411  Sambucus caerulea John C. Roos, Lucille Roos 1951-10-24 5341 Riverside Pedley 243 Comment
  CLARK-A1528-379  Sambucus caerulea John C. Roos, Lucille Roos 1951-10-24 5341 Riverside Pedley 243 Comment
  UCR113624  Schinus terebinthifolius O. F. Clarke 2000-10-4 s.n. Riverside Santa Ana River Valley, Hidden Valley Nature Center, c. 1/2 mile west of the park office (nature center), near Riverside between La Sierra and Norco 191 Comment
  UCR125278  Schinus terebinthifolius A. C. Sanders 2003-1-18 25666 Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, Sunnyslope Channel near confluence with Santa Ana River 220 Comment
  CLARK-A1528-92  Schismus barbatus Fred B. Essig 1964-2-13 13 Riverside La Sierra 609 Comment
  CLARK-A1528-922  Schismus barbatus Patricia A. Andrews 1975-3-13 5900 Riverside Rubidoux Comment
  SJSU1758  Schismus barbatus G. B. Youngberg 1956-3-30 220 Riverside among hills near La Sierra College, Arlington 228 Comment
  UCR125217  Schismus barbatus Mitch Provance 1998-5-5 523 Riverside City of Riverside, Hillside area, near Central Ave., along the N periphery of the Riverside Airport, south of the Wall Street Journal Ofc. 250 Comment
  UCR277754  Schoenoplectus acutus Mitch Provance 2013-4-16 413- 17 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR115881  Schoenoplectus acutus var. occidentalis Mitch Provance 1999-5-6 1163 Riverside San Bernardino/Santa Ana River Valley, city of Riverside, Arlanza area, at (nearly dry) Hole Lake 220 Comment
  UCR264629  Schoenoplectus americanus Mitch Provance 2012-6-19 196- 07 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR277488  Schoenoplectus californicus Mitch Provance 2013-2-16 0213- 01 Riverside Santa Ana River Valley, Riverside, Arlanza area, W side of Hole Lake and adjacent mesa. 226 Comment
  RSA366085  Schoenoplectus maritimus Lester H. Cushman 1932-5-8 s.n. Riverside Near Pedley, close to Santa Ana R. [River]. Comment
  RSA365982  Scirpus acutus var. occidentalis Lester H. Cushman 1932-2-8 s.n. Riverside Near Pedley, along the Santa Ana River. Comment
  SEINET13276759 Image available Scirpus microcarpus Mitch Provance 2012-1 196 -01 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave (Riverside 7.5' Q.) 226 Comment
  UCR19464  Scirpus microcarpus C. S. Papp 1963-6-29 317 Riverside Riverside, Santa Ana River bed Comment
  UCR264634  Scirpus microcarpus Mitch Provance 2012-6-19 196- 01 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  CSUSB1016  Scirpus robustus Emily E. McGregor 1972-4-15 Riverside Santa Ana River Santa Ana River bottom, off Freemont Drive. Comment
  CSUSB906  Scrophularia californica M. Quinlan 1974-5-25 Riverside Found in Riverside county on the bank of the Santa Ana River about 1 mile form the Riverside Municipal Airport in Riverside 266 Comment
  UC35949  Senecio californicus E. L. Koethen April 1897 18 Riverside Plains Comment
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Mar 12 2011
  UCR265848  Senecio vulgaris Mitch Provance 2013-4-8 413- 04 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  RSA695427  Senna artemisioides Robert Hamilton 2003-2-6 s.n. Riverside Riverside, vacant field on Monroe St. SE of California Ave. 232 Comment
  UCR126000  Senna artemisioides Robert Hamilton 2003-2-6 s.n. Riverside Riverside, vacant field on Monroe St. SE of California Ave. 232 Comment
  CLARK-A1528-1388  Sesuvium verrucosum John C. Roos 1937-5-23 2067 Riverside La Sierra Comment
  UC465735  Sesuvium verrucosum J. E. Roadhouse Aug. 1905 505 Riverside California Ave. Riverside Comment
  RSA728654  Setaria adhaerens R. E. Riefner 2005-12-30 5 -793 Riverside City of La Sierra; Gramercy Pl. near La Sierra Ave. 227 Comment
  POM78918  Setaria parviflora I. M. Johnston 1925-7-19 s.n. Riverside Pedley. Comment
  UC69323  Setaria pumila F. M. Reed 1904-7-31 57 Riverside Salt Lake Park near bridge Riverside; , Salt Lake Park Comment
  UCD92731  Setaria pumila Fred M. Reed 1904-7-31 57 Riverside Santa Ana River above Salt Lake Bridge. Comment
  UCR2739  Setaria pumila F. M. Reed 1904-7-31 57 Riverside South Coast; San Bernardino Valley, Riverside, Santa Ana River above Salt Lake Bridge 244 Comment
  UCR113045  Silene gallica Mitch Provance 1998-3-5 137 Riverside City of Riverside, Between the Harvest Church parking lot and Riverside Airport, c. 500 yards north of the corner of Adams St. and Arlington Ave. 241 Comment
  UCR16676  Silybum marianum Arthur Douglas 1969-5-22 26 Riverside Near Arlington. Below W end of Fremont Street, in vicintiy of Santa Ana River 183 Comment
  UCR239894  Sisymbrium erysimoides O. F. Clarke 2004-3-25 s.n. Riverside Riverside, Santa Ana River west of Salt Lake Railroad bridge 216 Comment
  CLARK-A1528-924  Sisymbrium irio Patricia A. Andrews 1975-3-13 5903 Riverside Rubidoux Comment
  CSUSB556  Sisymbrium irio D. L. Heald 1966-3-15 7 Riverside On the corner of Mongolia Avenue and Overland Street near Chemawa Jr. High School, Arlington 304 Comment
  CSUSB978  Sisyrinchium bellum Anna Mayers 1978-4-24 Riverside Rubidoux Nature Center, Riverview Drive, Rubidoux. Comment
  CSUSB791  Solanum douglasii Steve Stadler 1966-3-26 032666 35 Riverside Lake Matthews Lake Matthews area, 5 miles north of the Lake Matthews dam on La Sierra Ave, along the road. 304 Comment
  OBI40583  Solanum elaeagnifolium A. C. Sanders, O. F. Clarke, & R. Allert, R. Allert 1984-7-18 5109 Riverside In a weedy parking near the intersection of Wheeler and Miller Sts, near Hunt Park, Arlington area 259 Comment
  UC1522674  Solanum elaeagnifolium A. C. Sanders, O. F. Clarke and R. Allert 1984-7-18 5109 Riverside near the intersection of Wheeler and Miller Street (near Hunt Park, Arlington area); Riverside, Arlington area 259 Comment
  UCR35565  Solanum elaeagnifolium A. C. Sanders, O. F. Clarke, et al. 1984-7-18 5109 Riverside Riverside: parking near the intersection of Wheeler and Miller Streets, near Hunt Park, Arlington area 259 Comment
  CAS-BOT-BC231747  Solanum lanceolatum A. C. Sanders; O. F. Clarke; R. Allert 1984-7-18 5110 Riverside Riverside, in a vacant field northeast of the intersection of Tyler and Cypress Avenue 304 Comment
  LA103169  Solanum lanceolatum A. C. Sanders; O. F. Clarke, R. Allert 1984-7-18 5110 Riverside NE of the intersection of Tyler and Cypress Avenues 304 Comment
  OBI36390  Solanum lanceolatum A. C. Sanders, O. F. Clarke, & R. Allert 1984-7-18 5110 Riverside In a vacant field NE of the intersection of Tyler and Cypress Aves Comment
  SD123746  Solanum lanceolatum Andy C. Sanders, O. F. Clarke, R. Allert 1984-7-18 5110 Riverside Riverside, vacant field northeast of intersection of Tyler and Cypress Avenues. 305 Comment
  UC1522707  Solanum lanceolatum A. C. Sanders, O. F. Clarke and R. Allert 1984-7-18 5110 Riverside ne of the intersection of Tyler Avenue and Cypress Avenue 304 Comment
  UCR37658  Solanum lanceolatum A. C. Sanders, O. F. Clarke 1984-7-18 5110 Riverside Riverside: vacant field NE of the intersection of Tyler and Cypress Avenues 305 Comment
  UCR182162  Solanum nigrum S. Gomez Martinez, Joseph Gomez 1998-8-9 s.n. Riverside San Bernardino Valley, Riverside, field on north side of Magnolia Ave. near intersection with Wayne Ct., across the street from California Baptist University 241 Comment
  CDA6228  Solanum sarrachoides F. J. Willmarth 1959-5-2 2405 Riverside Gordon Dunlap ranch, Arlington. 0 Comment
  CLARK-A1528-4374  Solanum wallacei John C. Roos 1938-3-28 727 Riverside La Sierra Comment
  SJSU7616  Solanum xanti G. B. Youngberg 1956-3-27 171 Riverside hills near La Sierra college, Arlington 228 Comment
  UC57529  Solanum xanti H. M. Hall 1895-5-3 141 Riverside near Riverside (in mts along Santa Ana River); Santa Ana River; Santa Ana River, near Riverside Comment
  UC36214  Solidago velutina subsp. californica E. L. Koethen 1897-7-15 15 Riverside Plains , Plains (Riverside) Comment
  UCR12538  Soliva sessilis O. F. Clarke, H. Hails 1972-5-20 s.n. Riverside Santa Ana River Valley, City of Riverside, Santa Ana River bottom, just east of the Union Pacific railroad bridge. Comment
  CLARK-A1528-5540  Sorghum bicolor Alfred R. Roos 1936-11-11 Riverside Riverside 243 Comment
  CLARK-A1528-93  Sorghum halepense Fred B. Essig 1966-9-12 Riverside Riverside Comment
  CSUSB1169  Sorghum halepense Debbie Vigneault 1974-7-17 Riverside Santa Ana River Santa Ana River bottom, near Van Buren Bridge. 259 Comment
  UCR125204  Sorghum halepense Mitch Provance 1998-5-27 545 Riverside City of Riverside, Hillside area, along railroad tracks on the NW corner of Dewey St. and Streeter Ave. 238 Comment
  UCR207608  Sorghum halepense O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UCR24348  Sorghum halepense Alfred R. Roos 1936-11-11 s.n. Riverside La Sierra [Ave.?], Arlington [district], in Riverside 244 Comment
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Apr 3 2011
  UCR2759C  Sorghum halepense F. M. Reed 1904-8-14 95 Riverside Riverside, wet roadside near corner of Adams and Victoria Avenue, Arlington Heights. 274 Comment
  CLARK-A1528-5254  Sorghum sudanense Alfred R. Roos 1936-11-11 Riverside Riverside 243 Comment
  UCR16081  Sparganium eurycarpum H. C. Sharma 1976-5-18 760518- 01 Riverside Riverside, Santa Ana Riverbottom, Louis Rubidoux Nature Center, c. 0.5 mi SW of main building 229 Comment
  UCR264638  Spergularia Mitch Provance 2013-4-8 413- 15 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CLARK-A1528-2477  Spergularia macrotheca var. leucantha John C. Roos 1937-5-9 639 Riverside La Sierra University Comment
  CLARK-A1528-2483  Spergularia marina John C. Roos, Lucille Roos 1951-10-24 5337 Riverside Pedley 228 Comment
  CLARK-A1528-390  Spergularia marina Ruth Cooper 1941-5-11 584 Riverside Riverside Comment
  UCD99236  Spergularia marina Barrett 1921-6-3 s.n. Riverside Riverside. Comment
  UCR25932  Spergularia marina John C. Roos, L. Roos 1951-10-24 5337 Riverside Santa Ana River, at Pedley 229 Comment
  UCR134652  Spergularia rubra Mitch Provance 1998-4-9 406 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or variously referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 259 Comment
  UCD93054  Sporobolus airoides H. M. Reed 1906-7-8 1126 Riverside Riverside and vicinity riverbank, 2 miles W of Pelley Station. Comment
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Jun 15 2012
  UCR2771  Sporobolus airoides F. M. Reed 1906-7-8 1126 Riverside San Bernardino Valley/Upper Santa Ana River region, Riverside, [Santa Ana] riverbank 2 miles west of Pedley (RR) Station 213 Comment
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Jun 15 2012
  UCR123662  Sporobolus cryptandrus A. C. Sanders 2001-9-23 24876 Riverside San Bernardino Valley region, Riverside, Castle Park in La Sierra, 91 Fwy at Polk St. 220 Comment
  UCR264606  Stephanomeria exigua subsp. coronaria Mitch Provance 2012-6-19 196- 09 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  CLARK-A1528-1110  Stephanomeria virgata Charles S. Papp 1963-6-29 315 Riverside Riverside Comment
  CLARK-A1528-298  Stephanomeria virgata Fred B. Essig 1966-9-12 Riverside Riverside Comment
  CLARK-A1703-1188  Stephanomeria virgata Charles S. Papp 1963-6-29 314 Riverside Riverside Comment
  SJSU4504  Stillingia linearifolia G. B. Youngberg 1956-3-30 223 Riverside near La Sierra College, Arlington 259 Comment
  CLARK-A1528-5550  Stipa lepida John C. Roos 1937-5-2 1395 Riverside La Sierra Comment
  UCR80243  Stipa lepida I. M. Johnston 1917-6-5 1301 Riverside Hills south of Arlington, Riverside 366 Comment
  CAS-BOT-BC376028  Stylocline gnaphaloides F. M. Reed No date on label s.n. Riverside Riverside Comment
  POM182768  Symphyotrichum Reed 669 Riverside Riverside. Comment
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Mar 15 2014
  UC69212  Symphyotrichum subspicatum F. M. Reed 1905-6-4 767 Riverside Evans Ranch, vicinity of Riverside, below Chinatown ford Comment
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Jul 30 2006
  UCR281882  Symphyotrichum subulatum Mitch Provance 2012-11-9 1112- 13 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  UCR182444  Tagetes patula Mitch Provance 2003-7-4 4632 Riverside San Bernardino Valley, Riverside, 'Adams Hill', along the N. side of Raintree Ave., 0.2 mi. SW of Adams St., 0.3 mi. SE of Colorado Ave., c. 0.75 mi. SE of the Riverside Municipal Airport 238 Comment
  UCR113887  Tamarix parviflora Mitch Provance 1998-4-9 408 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or variously referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 259 Comment
  UCR120180  Tetradymia comosa Mitch Provance 1998-3-5 191 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  JEPS43401  Tribulus terrestris Martha W. Howland 1918-1 Riverside Riverside Comment
  UCR182443  Trichostema lanceolatum Mitch Provance 2003-7-4 4631 B Riverside San Bernardino Valley, Riverside, 'Adams Hill', along the N. side of Raintree Ave., 0.2 mi. SW of Adams St., 0.3 mi. SE of Colorado Ave., c. 0.75 mi. SE of the Riverside Municipal Airport 238 Comment
  CSUSB1217  Trifolium repens D. L. Heald 1966-3-28 15 Riverside Found on Overland Street near Chemawa Junior High School in Arlington. 243 Comment
  CLARK-A1528-2889  Trifolium tridentatum John C. Roos 1937-4-10 1394 Riverside La Sierra Comment
  CLARK-A1528-2375  Triodanis biflora John C. Roos 1937-5-2 1416 Riverside La Sierra Comment
  CLARK-A1528-2357  Tropidocarpum gracile John C. Roos 1937-2-21 1315 Riverside La Sierra Comment
  RSA428379A  Tropidocarpum gracile Jean Carnine 1932-2-28 15287 Riverside Santa Ana River Comment
  POM78940  Typha domingensis I. M. Johnston 1925-7-19 s.n. Riverside Pedley-Arlington Road. Comment
  UCR20855  Typha latifolia S. Beckstrom-Sternberg 1980-6-2 6280- 2 -11 Riverside Santa Ana River Regional Park. c. 1600 m south of the visitor's center Comment
  UCR125279  Ulmus parvifolia A. C. Sanders 2003-1-18 25667 Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, Sunnyslope Channel near confluence with Santa Ana River 220 Comment
  UCR67002  Ulmus pumila S. J. Myers 1990-12-5 s.n. Riverside Santa Ana River, Louis Rubidoux Nature Center, along drainage that connects to Sunnyslope Channel, and to the confluence with the Santa Ana River 213 Comment
  CLARK-A1528-926  Urtica urens Patricia A. Andrews 1975-3-13 5904 Riverside Rubidoux Comment
  UC450070  Urtica urens F. M. Reed 1905-3-3 675 Riverside Riverside and Vicinity Riverside 274 Comment
  POM182470  Verbena bracteata J. Ewan 1931-10-3 5220 Riverside Dry sand at lake margin Mocking bird Canyon, near Arlington. Comment
  UC472156  Verbena bracteata J. Ewan 1931-10-3 5220 Riverside near Arlington; Mockingbird Canyon Comment
  CSUSB304  Verbena tenuisecta Arthur P. Donaldson 1966-5-2 Riverside Collected by the bridge which passes over the Riverside freeway (91) on Van Buren Blvd. in Arlington (city). 262 Comment
  UCR252211  Verbena tenuisecta J. Mendoza 2011-5-13 s.n. Riverside Santa Ana River Regional Park near Louis Rubidoux Nature Center 221 Comment
  RSA683845  Verbesina encelioides Scott D. White 2003-12-1 9889 Riverside Santa Ana River Valley; City of Riverside; (La Sierra area). 244 Comment
  UC1929789  Verbesina encelioides Scott D. White 2003-12-1 9889 Riverside Santa Ana River Valley: City of Riverside (La Sierra area). Comment
  UCR149390  Verbesina encelioides Scott D. White 2003-12-1 9889 Riverside Santa Ana River Valley; city of Riverside; La Sierra area 244 Comment
  UCR63906  Verbesina encelioides Scott D. White 1990-8-22 s.n. Riverside Limonite Avenue, between Beach and Etiwanda Comment
  UC62880  Verbesina encelioides subsp. exauriculata H. M. Hall June 1900 1403 Riverside near Riverside; Santa Ana River Comment
  UCR272483  Veronica Mitch Provance 2013-6-16 613- 26 Riverside Santa Ana River Valley, City of Riverside, Arlanza neighborhood, El Dorado Park on Warren St., about 0.35 mi W of Van Buren Blvd. 225 Comment
  CLARK-A1528-4327  Veronica americana John C. Roos, Lucille Roos 1951-10-24 5338 Riverside Pedley 228 Comment
  CSUSB899  Veronica anagallis-aquatica M. Quinlan 1974-5-25 Riverside Found in Riverside county on the bank of the Santa Ana River about 1 mile form the Riverside Municipal Airport in Riverside 266 Comment
  UCR3327  Veronica anagallis-aquatica Warren Mouw 1964-5-10 640510- 01 Riverside Riverside, edge of Santa Ana River about 100 ft. upstream from Union Pacific Bridge 244 Comment
  UCR3326  Veronica persica Warren Mouw 1964-5-10 640510- 02 Riverside Riverside, in lawn at 5620 Walter 267 Comment
  CSUSB281  Vitis girdiana Eugene Cardiff 1950-5-18 Riverside Santa Ana River Santa Ana River, 5 miles west of Riverside (city). 304 Comment
  POM266330  Vulpia microstachys var. pauciflora J. C. Roos 1938-4-9 1641 Riverside La Sierra, western Riverside Comment
  POM266331  Vulpia microstachys var. pauciflora J. C. Roos 1937-5-2 1282 Riverside La Sierra, western Riverside. [Collection is Jack Frost Lake. aka Frost Reservoir, apparently a part of La Sierra [Loma Linda University Campus] ca. 1937 south of Indiana Avenue and west of Sayward Circle, near Pierce;, Owned by city of Riverside ca. 2000 Comment
  RSA696323  Vulpia myuros Keith E. Hoffmaster 1935-3-3 838 Riverside Near Santa Ana River, north of Arlington. Comment
  UC72522  Washingtonia gracilis S. B. Parish 1905-8-20 5536 Riverside Cult. at Riverside, Arlington Ave Comment
  UCR125284  Washingtonia robusta A. C. Sanders 2003-1-14 25665 Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, Santa Ana River 220 Comment
  SBBG81111  Xanthium strumarium S. Cantrell, W. Appleby 1985-9-19 Riverside Santa Ana River Regional Park, Riverside, S side of river 207 Comment
  UCR239920  Xanthium strumarium O. F. Clarke 2004-3-14 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge 215 Comment
  CLARK-A1528-311  Xanthium strumarium var. canadense Fred B. Essig 1966-9-12 Riverside Riverside Comment
  CLARK-A1528-312  Xanthium strumarium var. canadense Ken F. Clarke 1971-9-7 Riverside Riverside Comment
  POM123050  Yucca whipplei var. whipplei Marcus E. Jones 1900-1 s.n. San Bernardino Santa Ana River. Comment
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Sep 17 2011
  POM319690  Zannichellia palustris Patricia Wilder 1971-11-11 5312 Riverside Along Santa Ana River, north off of Jurupa Ave., opposite Sheppard Street at crossing of the Union Pacific Railroad. Drainage Area: Santa Ana River. 229 Comment
  UCR20854  Zannichellia palustris S. Beckstrom-Sternberg 1980-6-2 6280 2 5 Riverside Riverside, stream c. 150 m east of visitor's center at Santa Ana River Regional Park Comment
  UCR113882  Ziziphus jujuba Mitch Provance 1998-9-5 1029 Riverside City of Riverside, Hillside area, along the south side of Dewey St., between Streeter Ave. and Palm Ave. 238 Comment
  UCR125211  Ziziphus jujuba Mitch Provance 1998-5-28 538 Riverside City of Riverside, Hillside area, along the south side of Dewey St., between Streeter Ave. and Palm Ave. 238 Comment



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