Search Results — 428 specimen records retrieved (317 records with coordinates)
Results for search: Scientific name=Isoetes howellii;   More information: Jepson Online Interchange

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC123397  Isoetes howellii Townsend Stith Brandegee s.n. Marin Olema Comment
  CAS-BOT-BC173547  Isoetes howellii Peter Rubtzoff; Edward Lee 1974-5-11 7385 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC278749  Isoetes howellii Ayzik Solomeshch; C. Caria; R. Macdonald; S. Talley 2009-4-27 s.n. San Diego Cleveland National Forest. Laguna Campground, Mount Laguna. About 14 miles SE of San Diego County Road S1 (also called Sunrise Hwy) from intersection with Hwy 79 1670 Comment
  CAS-BOT-BC376227  Isoetes howellii Greg de Nevers 1992-6-16 10163 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Weimar Pond 304 Comment
  CAS-BOT-BC531465  Isoetes howellii A. Williams; M. C. O'Connor; R. Truitt; A. Young; R. Brostrom 2015-6-12 15810 Marin Mount Tamalpais. Marin Municipal Water District lands: alongside Alpine Lake Comment
  CAS-BOT-BC57721  Isoetes howellii Gordon H. True 1968-5-2 4205 Mendocino 2 miles north of Point Arena between Coast Highway and beach 15 Comment
  CAS-BOT-BC57723  Isoetes howellii S. B. Parish; W. F. Parish 1882-8-1 1440 San Bernardino Bear Valley, San Bernardino Mts. Comment
  CAS-BOT-BC57724  Isoetes howellii Philip A. Munz 1926-6-28 10538 San Bernardino Bluff Lake, San Bernardino Mts. 2255 Comment
  CAS-BOT-BC57725  Isoetes howellii S. B. Parish; W. F. Parish 1882-8-1 1440 San Bernardino Bear Valley, San Bernardino Mountains Comment
  CAS-BOT-BC57728  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mountain Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC57731  Isoetes howellii J. I. McMurphy 1906-5-19 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC57734  Isoetes howellii Greg de Nevers 1992-6-16 10165 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 304 Comment
  CAS-BOT-BC57738  Isoetes howellii John Thomas Howell 1937-6-6 13015 Sonoma Sebastopol Comment
  CAS-BOT-BC57740  Isoetes howellii Henry M. Pollard 1959-5-11 s.n. Ventura Mirror Lake, Ojai Valley Comment
  CAS-BOT-BC57741  Isoetes howellii Henry M. Pollard 1952-6-28 s.n. Ventura Mirror Lake, Ojai Valley Comment
  CAS-BOT-BC57742  Isoetes howellii Henry M. Pollard 1947-3-16 s.n. Ventura Mirror Lake Comment
  CAS-BOT-BC57743  Isoetes howellii Henry M. Pollard 1947-4-25 s.n. Ventura Mirror Lake Comment
  CAS-BOT-BC57744  Isoetes howellii Henry M. Pollard 1947-4-7 s.n. Ventura Mirror Lake Comment
  CAS-BOT-BC69901  Isoetes howellii Lowell Ahart 1980-4-19 2089 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC69902  Isoetes howellii Lowell Ahart 1988-4-6 5957 Butte E. of North Honcut Creek, on the Joie Osgood Ranch, about 1.5 mi. n. and 3 mi. e. of Honcut, about 12 mi. se. of 60 Comment
  CAS-BOT-BC69903  Isoetes howellii Lowell Ahart 1983-6-6 4031 Butte Peter Ahart Ranch, about 2 mi. n. and 1/4 mi. e. of Honcut. 50 Comment
  CAS-BOT-BC69904  Isoetes howellii Alice Eastwood; John Thomas Howell 1938-5-18 5771 Lake Near Adams Springs. Comment
  CAS-BOT-BC69907  Isoetes howellii Doreen Smith 1994-4-1 s.n. Marin Hidden Lake, Mt. Burdell. Comment
  CAS-BOT-BC69908  Isoetes howellii Catherine Best; Mary P. Wells 1983-7-14 s.n. Marin Hidden Lake, Mt. Burdell. Comment
  CAS-BOT-BC69909  Isoetes howellii H. E. Parks 1925-9-18 s.n. Marin Lake Lagunitas. Comment
  CAS-BOT-BC69910  Isoetes howellii H. E. Parks 1925-9-18 s.n. Marin Lake Lagunitas. Comment
  CAS-BOT-BC69911  Isoetes howellii H. E. Parks 1925-9-18 s.n. Marin Lake Lagunitas. Comment
  CAS-BOT-BC69912  Isoetes howellii H. E. Parks 1925-9-18 s.n. Marin Lake Lagunitas. Comment
  CAS-BOT-BC69914  Isoetes howellii John Thomas Howell 1941-7-6 16360 Marin Hidden lake, Mt. Tamalpais. Comment
  CAS-BOT-BC69930  Isoetes howellii Alice Eastwood; John Thomas Howell 1934-4-21 1845 Tehama 5 mi. s. of Cottonwood. Comment
  CAS-BOT-BC69931  Isoetes howellii Alice Eastwood; John Thomas Howell 1937-6-25 4944 A Trinity Preacher Meadow. Comment
  CAS-BOT-BC69933  Isoetes howellii Malcom A. Nobs; S. Galen Smith 1949-8-18 1386 Plumas Last Chance Marshes at n. end of Lake Almanor, just s. of Chester. Comment
  CAS-BOT-BC69938  Isoetes howellii R. F. Hoover 1968-5-28 11127 Shasta Clough Creek at Old Alturas Road. Comment
  CAS-BOT-BC69942  Isoetes howellii Peter H. Raven 1958-4-30 12757 San Diego 5 mi. e. of Torrey Pines on road to Miramar. Comment
  CAS-BOT-BC69943  Isoetes howellii Robert F. Thorne; Earl Lathrop 1969-5-12 37930 Riverside Santa Rosa Plateau: large vernal marsh on s. end of Mesa de Colorado, Rancho California. 624 Comment
  CAS-BOT-BC69944  Isoetes howellii Robert F. Thorne; Earl Lathrop; P. Munz 1968-5-8 37568 Riverside Santa Rosa Plateau: On Mesa de Colorado, Rancho California. 670 Comment
  CAS-BOT-BC69945  Isoetes howellii Clare B. Hardham 1957-5-1 1891 Monterey Hog Canyon, about 19 mi. ne. of San Miguel. Comment
  CAS-BOT-BC69946  Isoetes howellii E. B. Copeland 1903-5-30 3281 Butte Chico. Comment
  CAS-BOT-BC69947  Isoetes howellii E. B. Copeland 1903-5-30 3281 Butte Chico. Comment
  CAS-BOT-BC69949  Isoetes howellii Lowell Ahart 1975-4-7 s.n. Butte Peter Ahart Ranch, Honcut. 36 Comment
  CDA11711  Isoetes howellii G. F. Hrusa 1991-4-22 8344 Sacramento Natoma Unit-Folsom Lake State Rec. Area; Nimbus Dam overlook. Between Hazel Ave. and Lake Natoma. Comment
  CHSC111157  Isoetes howellii Lowell Ahart 2012-6-2 18151 Tehama In a small pond or vernal pool, on the east side of Long Road, about 6.7 miles northeast of Dales and State Highway 36, northeast of Red Bluff. 326 Comment
  CHSC112440  Isoetes howellii Lowell Ahart 2013-5-22 18703 Butte About 1/2 mile southeast of the Honcut Cemetery, about 3 1/4 miles (air) northeast of Honcut. 54 Comment
  CHSC117402  Isoetes howellii Lowell Ahart 2016-5-30 20881 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  CHSC117650  Isoetes howellii Lowell Ahart 2016-8-30 21320 Plumas About 100 yards west of the Pacific Crest Trail on Bunker Hill Ridge, about 1 1/2 miles (air) southeast of Pilot Peak. 2044 Comment
  CHSC24424  Isoetes howellii Lowell Ahart 1976-10-1 Sierra Along Bunker Hill Ridge, 1 1/4 mi nw of Mt. Etna. 1828 Comment
  CHSC28828  Isoetes howellii J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 420 Butte Top of North Table Mountain, ca 1.0 mi n of Cherokee Rd. Comment
  CHSC29767  Isoetes howellii M. S. Taylor 1980-5-24 2738 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31520  Isoetes howellii L. Ahart 1978-4-21 1662 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC32078  Isoetes howellii L. Ahart 1976-9-28 1210 Sierra Ca. 1 1/4 mi nw of Mt. Etna, ca. 10 mi e of La Porte. 1828 Comment
  CHSC32344  Isoetes howellii James Jokerst 1980-5-10 653 Mendocino Near Howard Lake. Comment
  CHSC39547  Isoetes howellii Lowell Ahart 1983-6-6 4031 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut. 50 Comment
  CHSC40400  Isoetes howellii Lowell Ahart 1985-5-5 4890 Sutter Near the first gate to the Dean Ranch, about 1/4 mile north of Mallott Road, about 2 miles north-east of Sutter, Sutter Buttes. 35 Comment
  CHSC4067  Isoetes howellii J. Wheeler 1967-4-23 12 Tehama On the W side of Paskenta Rd. about 0.2 mile south of the intersection of Paskenta Rd. and Live Oak Rd. 91 Comment
  CHSC40819  Isoetes howellii Pauleen Broyles 1982-5-21 641 Tehama Ca 30 meters s of Lassen Road in w pasture. The Nature Conservancy Vina Plains Preserve. 66 Comment
  CHSC41439  Isoetes howellii Lowell Ahart 1986-5-4 5249 Sutter Near the first gate to the Dean Ranch, about 1/2 mile north of the intersection of Mallott Road and Alf Road, about 2 miles north-east of Sutter, Sutter Buttes. 30 Comment
  CHSC44462  Isoetes howellii Lowell Ahart 1988-4-6 5957 Butte East of North Honcut Creek, on the Joie Osgood Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 60 Comment
  CHSC44627  Isoetes howellii Vernon Oswald 1984-3-9 1093 Tehama Old Calif. Hwy 99W at Sour Grass Creek 2.0 mi n of the Tehama-Glenn County line. Comment
  CHSC45022  Isoetes howellii Pauleen Broyles 1988-4-6 1105 Tehama On Singer Creek Ditch in Lassen Pasture. The Nature Conservancy Vina Plains Preserve. Comment
  CHSC46178  Isoetes howellii Lowell Ahart 1975-4-7 746 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC46179  Isoetes howellii Lowell Ahart 1975-5-11 754 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC46279  Isoetes howellii Vernon H. Oswald 1989-5-30 3789 Butte Sheep Camp Ditch and Vandergrift Lake on the w side of the n end of Cana-Pine Creek Rd. 54 Comment
  CHSC53991  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1991-5-9 4571 Tehama Paynes Creek Recreation Area located ca. 1.5 mi northeast of the Bend Bridge over the Sacramento River, ca. 6.5 miles north-northeast of Red Bluff. 112 Comment
  CHSC57790  Isoetes howellii Vernon H. Oswald 1992-4-21 4908 Tehama Hogsback Rd. (Belle Mill Rd. or Forest Rd. 28N24) near Mud Spring, 9.7 mi (odometer) E of Hwy. 99, ca. 11 mi (air) E of Red Bluff. 316 Comment
  CHSC57791  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1992-4-21 4921 Tehama Finley Lake on Hogsback Rd. (Forest Rd. 28N24), ca. 5.5 mi (air) SE of Paynes Creek. 850 Comment
  CHSC59069  Isoetes howellii Vernon H. Oswald; L. Ahart, L. Gehrung, L. Hanson, T. Martin 1992-8-20 5171 Sierra Duck Soup Pond, 1.6 mi (air) SSE of Pilot Pk., ca. 9 mi (air) Ne of La Porte. 2036 Comment
  CHSC59161  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1992-9-15 5215 Lassen Island Lake located N of Bonte Pk. And ca. 1.5 mi W of Juniper Lake campgrounds. 2164 Comment
  CHSC60804  Isoetes howellii Vernon H. Oswald 1993-6-28 5622 Lassen N of Hwy. 44 along Rd. 33N47 at the NE end of Little Harvey Valley, between Champs Flat and Harvey Valley, E of Poison Lake. 1737 Comment
  CHSC64591  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1995-4-17 6671 Tehama Cascade Range Foothills. Dales Lake Ecological Reserve. W side of Manton Rd. (A6) ca. 1.5 mi n of Dales Station on Hwy. 36, ca. 14 mi ne of Red Bluff. 213 Comment
  CHSC64934  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1995-7-12 7019 Tehama W of Red Bluff and S of Platina on Forest Route 45 (Tedoc Mtn. Rd.), 6.3 mi S of Hwy. 36. 1158 Comment
  CHSC65908  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1996-4-15 7377 .1 Tehama Thomes Creek Ecological Reserve. CDFG parcel on the S side of Gyle Rd. NW of Corning, northwest side of Sacramento Valley. 99 Comment
  CHSC65940  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1996-4-23 7412 Tehama Cascade Range Foothills. Hog Lake Plateau. BLM parcel along Hwy. 36 NE of Red Bluff. 263 Comment
  CHSC66711  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1996-8-1 8111 Lassen Mountain Meadows Reservoir SW of Westwood. NE of Indian Ole Dam. 1539 Comment
  CHSC69407  Isoetes howellii Lowell Ahart 1997-8-28 7874 Sierra West of the Pacific Crest Trail and Bunker Hill Ridge, about one mile west of the Bunker Hill Mine, about one mile southeast of Pilot Peak. 1828 Comment
  CHSC71271  Isoetes howellii Lowell Ahart 1998-7-1 8023 Butte About 1/4 miles north of the lone oak tree, about 1/2 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC79088  Isoetes howellii B. Castro; L. P. Janeway 2000-4-5 1061 Tehama Vicinity of Orland, among 'hummocky' rolling hills of grazed annual grassland adjacent to Rice Creek. 112 Comment
  CHSC79934  Isoetes howellii B. Castro; L. P. Janeway 2000-5-11 1172 Tehama Vicinity of Orland and Black Butte Lake. 88 Comment
  CHSC81194  Isoetes howellii J. Trizzino 2001-4-25 58 Butte Oro-Chico Highway, 0.25 mi west of Neal Road, wet ditch on north side of road. 54 Comment
  CHSC81195  Isoetes howellii J. Trizzino 2001-4-17 31 Tehama Hog Lake Plateau off Highway 36. 268 Comment
  CHSC82704  Isoetes howellii Lowell Ahart 2002-7-22 9917 Placer On the south side of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1773 Comment
  CHSC84250  Isoetes howellii Lowell Ahart 2003-5-28 10233 Butte On the bottom of Hendricks ditch, about 1 3/4 miles west of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 271 Comment
  CHSC84546  Isoetes howellii John Dittes 2003-5-25 2003 -28 Placer Sacramento Valley; approximately 3.3 air-miles south of Lincoln, 0.5 air-miles due east of intersection of State Highway 65 and 12-Bridges Exit. In bed of vernal pool. 39 Comment
  CHSC87384  Isoetes howellii Lowell Ahart 2004-4-29 10790 Tehama In Dead Rabbit Lake, east of the Nomalaki Trail, about 3/4 mile northwest of Bowers Creek, about 1 1/2 miles northwest of Forest Road 23N69 (Mud Flat Road), about 7 miles (air) southwest of Paskenta. 571 Comment
  CHSC92169  Isoetes howellii Lowell Ahart; John Dittes 2005-9-19 12372 Plumas In Taylor Lake, on the east side of Taylor Lake, about 6 miles (air) southwest of Antelope Lake. 2076 Comment
  CHSC94929  Isoetes howellii W. Gray; M. Brown 2005-3-16 34 Butte West of Wildwood park, Chico. 85 Comment
  GH309037  Isoetes howellii J. P. Tracy 1935-5-25 13841 Unknown Fort Seward Comment
  HSC894  Isoetes howellii H. E. Parks, J. P. Tracy 1935-6-2 11252 Del Norte Vicinity of Darlingtonia Camp, on the Smith River, 2 mi. E of Gasquet 122 Comment
  IRVC15233  Isoetes howellii Gordon A. Marsh 1977-5-25 s.n. Riverside Santa Rosa Plateau, Mesa de Burro. Peninsular Ranges, Santa Ana Mountains Comment
  IRVC17941  Isoetes howellii Gordon A. Marsh, Karlin G. Marsh 1980-5-18 s.n. Riverside Santa Rosa Plateau; pool 1. Peninsular Ranges, Santa Ana Mountains Comment
  JEPS103966  Isoetes howellii Jake Ruygt 1996-5-19 3708 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  JEPS104157  Isoetes howellii Lowell Ahart 2003-5-28 10233 Butte On the bottom of Hendricks ditch, ca 1 3/4 mi w of the iron gate and fence, w of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 271 Comment
  JEPS106165  Isoetes howellii Lowell Ahart 2004-4-29 10790 Tehama In Dead Rabbit Lake, east of the Nomalaki Trail, about 3/4 mile northwest of Bowers Creek, about 1 1/2 miles northwest of Forest Road 23N69 (Mud Flat Road), about 7 miles (air) southwest of Paskenta 571 Comment
  JEPS107682  Isoetes howellii Lowell Ahart, John Dittes 2005-9-19 12372 Plumas In Taylor Lake, on the east side of Taylor Lake, about 6 miles (air) southwest of Antelope Lake 2076 Comment
  JEPS116562  Isoetes howellii Jake Ruygt 2005-4-30 4801 Napa Big Ranch Road at El Centro Ave. Napa 7.5' Quad. Comment
  JEPS116563  Isoetes howellii Jake Ruygt 1992-5-15 2962 Napa West of vernal pool meadow, Wild Horse Valley Ranch. Mount George 7.5' Quad. Comment
  JEPS120930  Isoetes howellii Lowell Ahart 2013-5-22 18703 Butte About 2.5 miles SE of the Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  JEPS127197  Isoetes howellii Lowell Ahart 2016-5-30 20881 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  JEPS127220  Isoetes howellii Lowell Ahart 2016-8-30 21320 Plumas About 100 yards west of the Pacific Crest Trail on Bunker Hill Ridge, about 1 1/2 miles (air) southeast of Pilot Peak. Comment
  JEPS129168  Isoetes howellii Jake Ruygt 2015-5-2 6086 e Napa West of Buck Mountain near Nevada. Knoxville 7.5' Quad. Comment
  JEPS18119  Isoetes howellii Rimo Bacigalupi with G. T. Robbins 1956-6-1 5693 Lake 1.4 mi. w. Lower Lake (e. end of Dry Lake) 457 Comment
  JEPS20537  Isoetes howellii Rimo Bacigalupi with S. Galen Smith and George Bacigalupi Jr. 1957-6-27 5971 Siskiyou 2 1/2 mi. n.w. Weed (s. tip of Shasta Valley, near headwaters of Shasta River); Shasta Valley 1005 Comment
  JEPS25419  Isoetes howellii Rimo Bacigalupi with G. T. Robbins 1959-4-23 7036 Shasta ca. 2 mi. w. Bella Vista (along U.S. Hwy. 299, in drainage of Salmon Creek) 201 Comment
  JEPS45467  Isoetes howellii Perry Allen 1961-12-23 Stanislaus vicinity of La Grange (shore of Dawson Lake just below steep hill on e. side); Dawson Lake Comment
  JEPS52323  Isoetes howellii Wayne Roderick April, 1965 Sonoma e. Cotati (on Rivers Ranch, Sonoma Mts.); Sonoma Mts., Rivers Ranch 304 Comment
  JEPS60154  Isoetes howellii R. F. Hoover 1936-5-20 1143 Sutter Pleasant Grove Comment
  JEPS67913  Isoetes howellii L. R. Heckard and J. J. Thomas 1972-4-16 2896 San Mateo sw of Upper Crystal Springs Reservoir (ca 1 1/2 mi s of Pulgas Water Temple, along Old Canada Rd (private)) 121 Comment
  JEPS79455  Isoetes howellii Edward Lee with W. Joseph 1935-7-18 1583 Marin Mt. Tamalpais, Hidden Lake (?) Comment
  JEPS79456  Isoetes howellii Edward Lee with Annetta Carter 1936-7-4 2273 Santa Clara on ridge from Mt. Day to junction of Smith and Santa Isabela creeks (Mt. Hamilton Range); Mt. Hamilton Range Comment
  JEPS79458  Isoetes howellii Edward Lee with A. Carter, J. and N. Ewan 1936-5-9 2030 Sutter ca. 5 mi. w. Live Oak (beginning of foothills on n.e. side of <Marrysville> Buttes) 30 Comment
  JEPS88062  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1996-4-23 7412 Tehama ne of Red Bluff (BLM parcel along Hwy 36, sw end of Hog Lake); Cascade Range Foothills, Hog Lake Plateau 263 Comment
  JEPS88063  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1996-4-15 7377 .1 Tehama nw Corning (CDFG parcel on s side of Gyle Rd, ca 0.6 mi e of lane); Sacramento Valley, Thomes Creek Ecological Reserve 99 Comment
  JEPS89842  Isoetes howellii Dean W. Taylor 1990-5-9 11686 Tehama ca. 300 meters n. of creek along right-of-way electrical transmission lines (PG & E Pit-Vaca line) Stony Creek; Sacramento Valley, Black butte Dam 7 1/2 Quad., Stony Creek 112 Comment
  JEPS94717  Isoetes howellii Lowell Ahart 1998-7-1 8023 Butte about 7 air mi n Oroville (vernal pool about 1/4 mi n of lone oak tree, about 1/2 mi n of the cow chute along Cherokke Rd.); North Table Mountain 403 Comment
  JEPS94945  Isoetes howellii Lowell Ahart 1997-8-28 7874 Sierra small pond about 1 mi w Bunker Hill Mine (w of the Pacific Crest Trail and Bunker Hill Ridge, about 1 mi se of Pilot Peak) 1828 Comment
  JEPS97375  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1995-4-17 6671 Tehama 14 mi NE of Red Bluff (W side of Manton Rd (A6) ca. 1.5 mi N of Dales Station on Hwy 36); Cascade Range Foothills, Dales Lake Ecological Reserve 213 Comment
  JEPS97379  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1995-7-12 7019 Tehama W of Red Bluff (S of Platina; Forest Rte 45 (Tedoc Mtn Rd) 6.3 mi S of Hwy 36); High North Coast Ranges 1158 Comment
  OBI1054  Isoetes howellii R. F. Hoover 1968-5-28 11127 Shasta Clough Creek at Old Alturas Road Comment
  OBI1055  Isoetes howellii R. F. Hoover 1968-5-28 11127 Shasta Clough Creek at Old Alturas Road. Comment
  OBI1056  Isoetes howellii Lawrence L. Kiefer 1963-5-18 529 Ventura Ojai Valley, "Mirror Lake", south of airport, jnctn. of hgwys. 399 and 150, NW margin of lake 168 Comment
  PGM4253  Isoetes howellii Vern Yadon 1998-5-31 Monterey Sierra de Salinas, Hastings Res Carmel Valley, Ranch NW of and adj to Hastings Res Comment
  POM17786  Isoetes howellii F. W. Peirson 1923-3-28 3366 San Diego near boulevard on mesa about 6 miles north of San Diego 121 Comment
  POM230868  Isoetes howellii F. F. Gander 1937-5-11 3806 .1 San Diego 2 Miles North of Poway Junc. US 395. Comment
  POM25501  Isoetes howellii Alice Eastwood 1922-7-23 11508 Marin Mt. Tamalpais, Rock Spring. Comment
  POM25515  Isoetes howellii P. A. Munz 1922-8-5 6434 Marin Mt Tamalpais, Rock Springs. Comment
  POM258890  Isoetes howellii Alice Eastwood, J. T. Howell 1938-5-18 5771 Lake Near Adams Springs. Comment
  POM5203  Isoetes howellii E. B. Copeland 1903-5-30 3281 Butte Chico. Comment
  POM9999  Isoetes howellii H. H. Tracy 1918-08 680 San Bernardino Switzers Meadows, brook leading into Little Bear Lake [Arrowhead Lake]. San Bernardino Mountains Comment
  RSA0118713  Isoetes howellii Lowell Ahart 2013-5-22 18703 Butte About 1/2 mile southeast of the Honcut Cemetery, about 3 1/4 miles (air) northeast of Honcut. 54 Comment
  RSA116773  Isoetes howellii W. R. Dudley 1906-7-28 s.n. San Mateo Coal Mine Ridge, Black Mtn. Comment
  RSA125345  Isoetes howellii P. H. Raven 1958-4-30 12757 San Diego 5.0 miles east of Torrey Pines on road to Miramar. Comment
  RSA128168  Isoetes howellii Clare B. Hardham 1958-4-12 4228 San Luis Obispo Cambria. The Santa Lucia Mtns. Comment
  RSA152291  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp. 1402 Comment
  RSA192257  Isoetes howellii E. W. Lathrop 1966-5-1 6253 Riverside 3 miles W of Murrieta Comment
  RSA199007  Isoetes howellii R. F. Thorne, E. Lathrop, P. A. Munz 1968-5-8 37567 Riverside Santa Rosa Plateau: on Mesa de Colorado, Rancho California 671 Comment
  RSA199008  Isoetes howellii R. F. Thorne, E. W. Lathrop, Ora M. Clark, S. Carlquist 1968-4-18 37420 Riverside Santa Rosa Plateau: near roadside, Rancho California. Santa Ana Mountains 610 Comment
  RSA199009  Isoetes howellii R. F. Thorne, E. Lathrop, P. A. Munz 1968-5-8 37568 Riverside Santa Rosa Plateau: on Mesa de Colorado, Rancho California 671 Comment
  RSA211494  Isoetes howellii William J. Ferlatte 1966-8-3 281 Siskiyou Josephine Lake basin. Trinity Alps. 1677 Comment
  RSA234045  Isoetes howellii R. F. Thorne, E. Lathrop 1969-5-19 37974 Riverside Santa Rosa Plateau: Rancho Caifornia, Mesa de Colorado 625 Comment
  RSA234046  Isoetes howellii R. F. Thorne, E. W. Lathrop 1969-5-12 37942 Riverside Santa Rosa Plateau: Mesa de Colorado, Rancho California. 625 Comment
  RSA234054  Isoetes howellii R. F. Thorne, E. W. Lathrop 1969-5-12 37930 Riverside Santa Rosa Plateau: Large vernal marsh on S end of Mesa de Colorado, Rancho California 625 Comment
  RSA286232  Isoetes howellii R. F. Thorne 1974-7-27 44980 Lake Boggs Lake: N of Harrington Flat Road. 915 Comment
  RSA286803  Isoetes howellii R. F. Thorne 1974-5-23 44671 Riverside Santa Ana Mountains, Santa Rosa Plateau, Rancho California: N edge of large vernal marsh, Mesa de Colorado 624 Comment
  RSA336178  Isoetes howellii R. F. Thorne, M. Z. Thorne, W. Wisura 1978-5-21 51966 Riverside Santa Rosa Plateau: Mesa de Colorado 609 Comment
  RSA356636  Isoetes howellii R. F. Thorne, Earl Lathrop 1975-5-20 45542 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro; Santa Ana Mountains 610 Comment
  RSA357000  Isoetes howellii R. F. Thorne 1973-5-23 43875 Riverside Santa Rosa Plateau- Mesa de Colorado: stream N of mesa. Santa Ana Mountains 609 Comment
  RSA357154  Isoetes howellii Robert F. Thorne 1973-5-23 43852 Riverside Santa Rosa Plateau: N side of Mesa de Colorado. Santa Ana Mountains 609 Comment
  RSA430448  Isoetes howellii Lyman Benson 1935-5-17 6597 Lake West base of Mt. Konocti, Breen s Lake. Middle N Coast mtn range, Clear Lake watershed. 488 Comment
  RSA43959  Isoetes howellii Henry M. Pollard 1947-4-7 s.n. Ventura Mirror Lake Comment
  RSA545385  Isoetes howellii Robert F. Thorne 1975-5-20 45542 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro 610 Comment
  RSA606519  Isoetes howellii Jon E. Keeley 1985-4-18 7926 Riverside Main pool near road, Mesa de Colorado, Santa Rosa Plateau. Santa Ana Mountains 675 Comment
  RSA606520  Isoetes howellii Jon E. Keeley 1978-4-16 7090 San Diego Corner of Miramar Rd. and Carroll Rd. 125 Comment
  RSA606521  Isoetes howellii Jon E. Keeley 1978-4-15 7091 San Diego West of Highway 163 on Kearney Villa Rd. (north end.) 100 Comment
  RSA639130  Isoetes howellii R. F. Thorne, Earl Lathrope, Oscar Clarke, S. Carlquist 1968-4-18 37460 A Riverside Santa Rosa Plateau: Mesa de Colorado, Rancho California.. 609 Comment
  RSA684553  Isoetes howellii Henry M. Pollard 1947-4-7 s.n. Ventura Mirror Lake Comment
  RSA684554  Isoetes howellii Christopher Davidson 1977-5-25 5665 Riverside Mesa de Burro; Santa Rosa Plateau area of Santa Ana Mountains 701 Comment
  RSA739596  Isoetes howellii John Dittes 2003-5-25 2003 -28 Placer Sacramento Valley; approximately 3.3 air-miles south of Lincoln, 0.5 air-miles due east of intersection of State Highway 65 and 12-Bridges Exit. 40 Comment
  RSA757451  Isoetes howellii R. F. Thorne, E. W. Lathrop, S. Beckstrom-Sternberg, B. Martin 1982-05 55204 Riverside SW of Murrieta. Santa Rosa Plateau, Mesa de la Punta near S. edge of plateau, approached from De Luz road 730 Comment
  RSA795514  Isoetes howellii P. Reisentz 1979-4-22 s.n. Ventura Mirror Lake, 0.5 miles south of intersection of Highway 150 and Highway 33, 3 miles southwest of Ojai, 12 miles north of Ventura. 191 Comment
  RSA796365  Isoetes howellii Forrest Freund, J. Mark Porter 2013-3-20 125 .1 Monterey Fort Ord National Monument (former Fort Ord), eastern Twin Ponds. 134 Comment
  RSA796366  Isoetes howellii Forrest Freund, J. Mark Porter 2013-3-20 124 Monterey Fort Ord National Monument (former Fort Ord), Butterfly Valley. 146 Comment
  RSA796367  Isoetes howellii Forrest Freund, J. Mark Porter 2013-3-20 126 Monterey Fort Ord National Monument (former Fort Ord), along Trail 17. 119 Comment
  RSA796368  Isoetes howellii Forrest Freund, J. Mark Porter 2013-3-20 127 Monterey Fort Ord National Monument (former Fort Ord), Lower Machinegun Flats. 131 Comment
  RSA796369  Isoetes howellii Forrest Freund, J. Mark Porter 2013-3-20 123 .2 Monterey Fort Ord National Monument (former Fort Ord), E of California Hwy 1 (Cabrillo Hwy), along Trail 17 (between Addington Road and Hennekens Ranch Road). 131 Comment
  RSA796370  Isoetes howellii Forrest Freund, J. Mark Porter 2013-3-20 122 .2 Monterey Fort Ord National Monument (former Fort Ord), E of California Hwy 1 (Cabrillo Hwy), along Trail 20 (between Addington Road and Hennekens Ranch Road). 118 Comment
  RSA796371  Isoetes howellii Forrest Freund, J. Mark Porter 2013-3-20 128 Monterey Fort Ord National Monument (former Fort Ord), Mary s Valley. 131 Comment
  RSA84315  Isoetes howellii F. W. Peirson 1930-8-14 9214 Tuolumne Tuolumne Meadows. Sierra Nevada. 2591 Comment
  RSA84317  Isoetes howellii F. W. Peirson 1923-3-28 3366 San Diego near boulevard on mesa about 6 miles north of San Diego 121 Comment
  SBBG107813  Isoetes howellii C. B. Hardham 1957-5-12 1943 San Luis Obispo near Green's Lake Comment
  SBBG108392  Isoetes howellii C. B. Hardham 1957-5-12 1944 San Luis Obispo Green's Lake Comment
  SBBG112262  Isoetes howellii D. H. Wilken 1999-4-28 15675 Monterey Santa Lucia Memorial Park, ca. 0.4 km ENE of Indian Ranger Station, ca. 2.6 km NW of The Indians 640 Comment
  SBBG119787  Isoetes howellii L. Ahart 2004-4-29 10790 Tehama Dead Rabbit Lake, E of Nomalaki Trail, ca. 0.75 mi NW of Bowers Crk, ca. 1.5 mi NW of USFS Rd 23N69 (Mud Flat Rd), ca. 7 air mi SW of Paskenta 571 Comment
  SBBG14522  Isoetes howellii C. B. Hardham 1958-5-12 1943 San Luis Obispo Green's Lake, crest N of Cypress Mtn Comment
  SBBG16075  Isoetes howellii L. L. Kiefer 1963-5-18 529 Ventura Mirror Lake, S of airport, jct of Hwys 150 and 399 200 Comment
  SBBG27190  Isoetes howellii A. Eastwood, J. T. Howell 1938-5-18 5771 Lake near Adams Springs Comment
  SBBG41912  Isoetes howellii H. M. Pollard 1959-5-11 Ventura Mirror Lake 200 Comment
  SBBG92732  Isoetes howellii R. F. Thorne 1973-5-23 43852 Riverside Santa Rosa Plateau, N side of Mesa de Colorado 609 Comment
  SD111888  Isoetes howellii Barbara Ertter, Jeff Strachan, Lowell Ahart 1980-5-7 3288 Butte Peter Ahart Ranch, ca 2.5 miles north northeast of Honcut between Oroville and Marysville, dry ditches in oatfield near pond 29 Comment
  SD112459  Isoetes howellii Darley F. Howe 1941-5-11 1308 San Diego Miramar Comment
  SD114727  Isoetes howellii Henk van der Werff 1982-3-28 4453 San Diego Kearney Mesa near San Diego Comment
  SD114739 Image available Isoetes howellii Henk van der Werff 1982-4-16 4462 San Diego Pine Valley, Corte Madera Ranch In mud of vernal pool 1200 Comment
  SD115095  Isoetes howellii Wayne P. Armstrong 1983-5-1 San Diego Along Kearney Villa Road, one mile north of Clairemont Mesa Boulevard 120 Comment
  SD13016  Isoetes howellii F. M. Cota Apr 1935 San Diego Camp Kearny Mesa Comment
  SD132950  Isoetes howellii Timothy Cass 1979-4-30 65 San Diego Vernal pool W of Miramar Land Fill, Dump ponds (#'s 1-6) Comment
  SD132951  Isoetes howellii Timothy Cass 1979-4-27 37 San Diego Camp Elliot, 'Beauchamp's Bend #1 Comment
  SD14606  Isoetes howellii Frank F. Gander 1936-4-15 1386 B San Diego Near Ramona Comment
  SD17374  Isoetes howellii Frank F. Gander 1937-5-11 3710 San Diego Near county line on US 395 Comment
  SD17470  Isoetes howellii Frank F. Gander 1937-5-11 3806 3806 1 San Diego 2 miles north of Poway Junction on US 395 Comment
  SD17472  Isoetes howellii Frank F. Gander 1937-5-11 3806 3 San Diego 2 miles north of Poway Junction, US 395 Comment
  SD204904  Isoetes howellii R. F. Thorne, E. W. Lathrop, et al. 1982-6-5 55204 Riverside Santa Ana Mountains region: SW of Murrieta. Santa Rosa Plateau, Mesa de la Punta near south edge of plateau, approached from De Luz road. 579 Comment
  SD207443  Isoetes howellii Gena Calcarone, Cheri Kim, Fred Sproul 2005-4-13 179 San Diego Ramona Grassland Preserve, 200 yds NE of junction Highland Valley Rd and Rangeland Rd., in Cagney swale. 410 Comment
  SD38490  Isoetes howellii Edith A. Purer 1937-4-16 7232 A San Diego Camp Kearney Mesa Comment
  SD38491  Isoetes howellii Edith A. Purer 1937-3-2 7111 San Diego Camp Kearney Mesa Comment
  SD68955  Isoetes howellii Robert F. Thorne, E. Lathrop, P. Munz 1968-5-8 37568 Riverside Santa Rosa Plateau, vernal marsh on Mesa de Colorado 669 Comment
  SD90574  Isoetes howellii Robert F. Thorne, Earl Lathrop 1969-5-12 37930 Riverside Santa Rosa Plateau, Rancho California, large vernal marsh on south end of Mesa de Colorado 625 Comment
  SDSU1990  Isoetes howellii F. M. Cota 1932-2-1 213 San Diego Camp Kearny. Comment
  SDSU20309  Isoetes howellii Mark Olson 1993-6-18 422 Santa Barbara Burton Mesa Project Area: W of Vandenberg Village, nearly a mile SW of Cabrillo High School, S of Hwy 1. Shown as intermittent pond on Lompoc quadrangle. Comment
  SEINET183939 Image available Isoetes howellii A. Eastwood, JT Howell 1938-5-18 5771 Lake Near Adams Springs Comment
  SEINET223495  Isoetes howellii Barbara Ertter, Jeff Strachan; Lowell Ahart 1980-5-7 3288 Butte Peter Ahart Ranch ca 2.5 mi NNE of Honcut between Oroville and Marysville. 31 Comment
  SEINET3450183  Isoetes howellii Unknown 2003-5-28 10233 Butte Alleghany, Alleghany, about 7 air miles northeast, Harris Meadow, upper west branch of Black Jack Ravine, on the west side of Forest highway 98 270 Comment
  SEINET3863769  Isoetes howellii Robert F. Thorne 1973-5-23 43852 Riverside Santa Rosa Plateau: Wet margin of large vernal pool N side of Mesa de Colorado.; 0 610 Comment
  SEINET3863798 Image available Isoetes howellii Robert F. Thorne, Earl Lathrop 1975-5-20 45542 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro.; 0 610 Comment
  SEINET6164857  Isoetes howellii B. Ertter, Jeff Strachan; Lowell Ahart 1980-5-7 3288 Butte Peter Ahart Ranch ca 2.5 mi NNE of Honcut between Oroville and Marysville. 31 Comment
  UC1094376  Isoetes howellii S. Galen Smith with J. Anderson 1957-6-8 2986 Lake 1.5 mi. e. Loch Lomond (0.25 mi. e. of rd. to Siegler Springs) 822 Comment
  UC1094398  Isoetes howellii R. C. Bacigalupi with S. Galen Smith 1957-6-27 5971 Siskiyou 2 mi. s. Weed (along Hwy. 99) 1036 Comment
  UC111604  Isoetes howellii Dr. E. B. Copeland 1903-5-30 3281 Butte Chico Comment
  UC1181570  Isoetes howellii R. F. Hoover 1937-5-18 2211 Sacramento Rio Linda Comment
  UC1192365  Isoetes howellii Malcolm A. Nobs and S. Galen Smith 1949-8-18 1386 Plumas just s. Chester (Last Chance Marshes at n. end of Lake Almanor); Lake Almanor, Last Chance Marshes Comment
  UC1212196  Isoetes howellii H. E. and S. T. Parks June 1938 24137 Del Norte Darlingtonia, Smith R. 121 Comment
  UC1225879  Isoetes howellii Joseph P. Tracy 1941-5-30 16899 1/2 Mendocino 4 mi. n. Calpella (Redwood Valley); Redwood Valley 259 Comment
  UC1239794  Isoetes howellii Harold E. Parks and Joseph P. Tracy 1935-6-2 11252 Del Norte ca. 2 mi. e. Gasquet (vicinity of Darlingtonia Camp, on Smith R.); Smith R. 121 Comment
  UC1259254  Isoetes howellii L. L. Kiefer 1965-4-18 1504 San Diego a little w. Miramar Naval Air Station (n. of Miramar Rd., <Kerney Meas>); <Kerney Meas> 152 Comment
  UC1259255  Isoetes howellii L. L. Kiefer 1965-5-23 1539 Ventura Ojai Valley, Mirror Lake 152 Comment
  UC1259502  Isoetes howellii Lowell Ahart 1978-4-21 Butte Honcut, Peter Ahart Ranch 50 Comment
  UC1260173  Isoetes howellii Robert F. Thorne 1974-7-27 44980 Lake n. of Harrington Flat Rd. Boggs Lake 914 Comment
  UC1392747  Isoetes howellii R. F. Hoover 1968-5-28 11127 Shasta at Old Alturas Rd. Clough Creek Comment
  UC150789  Isoetes howellii T. S. Brandegee 1895-4-8 San Diego El Cajon Comment
  UC1532802  Isoetes howellii Robert F. Thorne and Earl Lathrop 1975-5-20 45542 Riverside Rancho California, Mesa de Burro 609 Comment
  UC1562586  Isoetes howellii Barbara Ertter with Travis Columbus and Holly Forbes 1989-4-22 8263 Merced ca 10 air mi ne Merced (Flying M Ranch, se of pools on Burns Creek) 94 Comment
  UC1586565  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1991-5-9 4571 Tehama ca 6.5 mi nne Red Bluff (ca 1.5 mi ne of Bend Bridge over Sacramento River, ca 400 ft w of large impoundment at entrance kiosk); Paynes Creek Recreation Area 112 Comment
  UC1594524  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1992-4-21 4921 Tehama ca 5.5 air mi se of Paynes Creek (Finley Lake on Hogstack Rd (Forest Rd 28N24)) 850 Comment
  UC1594525  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1992-4-21 4908 Tehama ca 11 air mi e Red Bluff (Hogstack Rd (Belle Mill Rd or Forest Rd 28N24) near Mud Spring, 9.7 mi (odometer) e of Hwy 99) 316 Comment
  UC1605509  Isoetes howellii Terry O'Brien May 1995 2131 Riverside ca 5 mi sw of Grand Ave in Murrieta on Clinton Keith Rd Mesa de Colorado; Santa Rosa Plateau Preserve 600 Comment
  UC1605510  Isoetes howellii Terry O'Brien May 1995 2130 Riverside ca 5 mi sw of Grand Ave in Murrieta on Clinton Keith Rd Mesa de Colorado; Santa Rosa Plateau Preserve 600 Comment
  UC1609389  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1993-6-28 5622 Lassen e Poison Lake (between Champs Flat and Harvey Valley, ne end of Little Harvey Valley, n of Hwy 44 along Rd 33N47, along small branch of Pine Creek); Little Harvey Valley 1737 Comment
  UC1616163  Isoetes howellii Terry O'Brien 1997-3-19 3108 A Contra Costa Vasco Caves, approx. 1 mi W of North Vasco Road and 1 mi N of Alameda-Contra Costa county line; access from North Vasco Road ca. 3 mi N of county line 152 Comment
  UC1618153  Isoetes howellii J. C. Game 1996-5-25 96 /41 Sonoma ca 15 mi nw of Warm Springs Dam (along Rockpile Rd, in Rockpile Ranch) Comment
  UC1714615  Isoetes howellii L. C. Erickson 1939-5-21 San Diego 8 mi. n. Kearney Mesa Comment
  UC1714616  Isoetes howellii L. C. Erickson 1939-5-21 San Diego Kearney Mesa Comment
  UC1714617  Isoetes howellii L. C. Erickson 1939-5-21 San Diego Kearney Mesa Comment
  UC1714618  Isoetes howellii L. C. Erickson 1939-5-21 San Diego 8 mi. n. Kearney Mesa Comment
  UC1731155  Isoetes howellii Dean W. Taylor 1991-6-12 11896 Shasta ponds ca. 1.2 mi N of Lake Britton and 1 mile West of Warner Grade Reservoir, just east of PG&E natural gas pipeline 883 Comment
  UC200762  Isoetes howellii Katharine Brandegee 1910-5-29 Marin Olema Comment
  UC2062877  Isoetes howellii Forrest Freund 2016-5-17 255 Tehama Hog Lake vernal pool. Comment
  UC279617  Isoetes howellii H. E. Parks 1925-9-18 3087 Marin Lake Lagunitas Comment
  UC353915  Isoetes howellii Milo S. Baker 1927-5-8 2131 b Sonoma near summit of Bennett Valley Rd. Comment
  UC353916  Isoetes howellii Milo S. Baker 1927-7-2 2281 a Lake along hwy. 1 mi. n. Salmina's Resort Comment
  UC375486  Isoetes howellii W. C. Blasdale 1896-6-10 Trinity <Hyampum> Comment
  UC42837  Isoetes howellii C. C. Parry 1889-5-1 Shasta Anderson Comment
  UC42852  Isoetes howellii Marshall A. Howe 1896-6-10 146 Trinity near Hyampon Comment
  UC503070  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC562459  Isoetes howellii Harold E. Parks and Joseph P. Tracy 1936-6-13 11325 Del Norte ca. 2 mi. e. Gasquet (vicinity of Darlingtonia Camp, on Smith R.); Smith R. 121 Comment
  UC600418  Isoetes howellii H. F. Copeland 1930-8-13 Sacramento Sacramento, at Junior College Comment
  UC648479  Isoetes howellii L. C. Erickson 1939-4-15 San Diego Kearney Mesa Comment
  UC648482  Isoetes howellii L. C. Erickson 1939-4-15 San Diego 8 mi. n. Kearney Mesa Comment
  UC648483  Isoetes howellii L. C. Erickson 1939-4-15 San Diego 8 mi. n. Kearney Mesa Comment
  UC648484  Isoetes howellii L. C. Erickson 1939-4-15 San Diego Kearney Mesa Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  UC667941  Isoetes howellii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  UC667944  Isoetes howellii Joseph P. Tracy 1935-5-25 13842 Humboldt Fort Seward 106 Comment
  UC692078  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 Contra Costa s. side Meridian Peak (Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  UC692079  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 a Contra Costa s. side Meridian Peak (w. end Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  UC692080  Isoetes howellii Mary L. Bowerman 1935-6-28 3166 Contra Costa Chase Pond s. of summit Mt.Diablo (by Old Government trail, e. side of pond); , Chase Pond 548 Comment
  UC723171  Isoetes howellii H. K. Sharsmith 1936-5-21 3669 Santa Clara s. end of Mt. Day Ridge; Mt. Hamilton Range, Mt. Day Ridge 1066 Comment
  UC766778  Isoetes howellii Robert F. Hoover 1936-5-20 1143 Sutter Pleasant Grove Comment
  UC766779  Isoetes howellii Robert F. Hoover 1936-5-20 1143 Sutter Pleasant Grove Comment
  UC810503  Isoetes howellii John Thomas Howell 1937-6-6 13015 Sonoma Sebastopol Comment
  UC810504  Isoetes howellii Alice Eastwood and John Thomas Howell 1938-5-18 5771 Lake near Adams Springs Comment
  UC907509  Isoetes howellii Herbert L. Mason June 1950 Sacramento just above n end of Antioch Bridge (San Joaquin River) Comment
  UCD131093  Isoetes howellii Ayzik Solomeshch; C. Caria, R. Macdonald, S. Talley 2009-4-27 s.n. San Diego Cleveland National Forest. Laguna Campground, Mount Laguna. About 14 miles SE of San Diego County Road S1 (also called Sunrise Hwy) from intersection with Hwy 79. 1670 Comment
  UCD131111  Isoetes howellii Ayzik Solomeshch; C. Caria, R. Macdonald, S. Talley 2009-4-27 s.n. San Diego Cleveland National Forest. Laguna Campground, Mount Laguna. About 14 miles SE of San Diego County Road S1 (also called Sunrise Hwy) from intersection with Hwy 79. 1670 Comment
  UCD131112  Isoetes howellii Ayzik Solomeshch; C. Caria, R. Macdonald, S. Talley 2009-4-27 s.n. San Diego Cleveland National Forest. Laguna Campground, Mount Laguna. About 14 miles SE of San Diego County Road S1 (also called Sunrise Hwy) from intersection with Hwy 79. 1670 Comment
  UCD135843  Isoetes howellii Robert E. Preston 1995-4-1 746 Sacramento Vernal Pool Preserve, ca. 0.8 mi SW of int. Hwy 16 and Sloughhouse Road. 54 Comment
  UCD135864  Isoetes howellii Thomas H. Whitlow 1976-4 s.n. Sacramento Phoenix Park, east of Fair Oaks. 82 Comment
  UCD135868  Isoetes howellii Beecher Crampton 1980-4-23 9705 Solano North of Allendale store. Comment
  UCD135891  Isoetes howellii H. van der Werff 1982-4-16 4462 San Diego Corte Madera Ranch. Pine Valley. 1200 Comment
  UCD147466  Isoetes howellii Ellen Dean; Diana Hickson 2014-4-29 8079 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  UCD150145  Isoetes howellii Ayzik Solomeshch 2009-5-11 s.n. Sonoma Santa Rosa Plain. NW of City of Santa Rosa. Maggi Property located SW of the intersection of Fulton and River Rds. Sampling pool #1. 43 Comment
  UCD150855  Isoetes howellii Ayzik Solomescsh 2009-5-14 s.n. Sonoma Sonoma County, 2.3 km. southeast of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation estimated in Google Earth by label maker. 22 Comment
  UCD160710  Isoetes howellii Ellen Dean; Jake Ruygt 2015-5-23 8769 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Headwaters of Nevada Creek.NE corner of land parcel. 592 Comment
  UCD21100  Isoetes howellii Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-4-17 276 Tehama Thomes Creek Ecological Reserve. Approximately 6 miles NW of the town of Corning. Located 200 meters N of a intermittent drainage. Pool # THO003. UTMs: 10S0564312; 4427009. Comment
  UCD21126  Isoetes howellii Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-5-2 301 Sacramento Phoenix Field Park, the city of Sacramento. 0.5 miles E of Hazel Avenue along Sunset Blvd. Pool #PHO002. UTMs 10S0655082; 4279651. Comment
  UCD21157  Isoetes howellii Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-5-8 332 Mendocino Ridgewood Ranch site. Pool # RID002. UTMs 10S0474017; 4353766. Comment
  UCD46569  Isoetes howellii Ellen Dean; David Popp and Kate Mawdsley 2005-6-11 2665 Sacramento California: Sacramento County, Deer Creek Hills Reserve. South side of Latrobe Rd., along dirt road which begins at gate located 0.6 road miles east of Corral Gate entrance. We traveled 0.5 road miles south of Latrobe Rd, before beginning to walk south. 73 Comment
  UCD73220  Isoetes howellii Ayzik Solomeshch 2005-6-3 s. n. Fresno California Department of Fish and Game Big Table Mountain Ecological Reserve. 10 miles NE of the town of Friant. 400 Comment
  UCD73285  Isoetes howellii D. PeBenito, J. Baty, C. Leonzo 2008-3-9 11 Sacramento Cosumnes River Preserve. Howard Ranch North: Block6, Plot4, Pool 2. 76 Comment
  UCD73381  Isoetes howellii D. PeBenito, J. Baty, C. Leonzo 2008-4-15 11 -a Sacramento Cosumnes River Preserve. Howard Ranch North: Block6, Plot4, Pool 2. 76 Comment
  UCD80367  Isoetes howellii CNPS SN Foothill Team 2006-4-26 SNFN 0297 a Mariposa Maggie Williams property, private . 617 Comment
  UCD80370  Isoetes howellii CNPS SN Foothill Team 2006-5-4 SNFN 0436 d Tuolumne Table Mountain on Minna Grazzettii's property (access through Pat Stone). At top of driveway, walk SW to pool just NW of light blue storage shed. 591 Comment
  UCD84101  Isoetes howellii Ayzik Solomeshch 2009-5-12 s.n. Sonoma Sonoma Regional Park. 37 Comment
  UCD84281  Isoetes howellii Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  UCD84377  Isoetes howellii Ayzik Solomeshch; John Olmsted 2004-6-12 s.n. Lake Southern slope of Goat Mtn. Vicinity of Root Glades, N of Wyman Creek. 966 Comment
  UCD84409  Isoetes howellii Ayzik Solomeshch 2004-6-13 s.n. Lake Southern slope of Goat Mtn. Vicinity of Root Glades, N of Wyman Creek. 891 Comment
  UCD84652  Isoetes howellii Ayzik Solomeshch 2009-5-6 s.n. Monterey Fort Ord, Trail 17. Comment
  UCD84746  Isoetes howellii Ayzik Solomeshch 2009-5-5 s.n. Monterey Fort Ord, Machine Gun Flats. Comment
  UCD85183  Isoetes howellii Ayzik Solomeshch; C. Caria, R. Holland, R. Macdonald 2009-4-8 s.n. Monterey Fort Ord, Butterfly Valley. Comment
  UCD85184  Isoetes howellii Ayzik Solomeshch; C. Caria, R. Holland, R. Macdonald 2009-4-8 s.n. Monterey Fort Ord, Butterfly Valley. Comment
  UCD85185  Isoetes howellii Ayzik Solomeshch; C. Caria, R. Holland, R. Macdonald 2009-4-8 s.n. Monterey Fort Ord, Butterfly Valley. Comment
  UCD85441  Isoetes howellii Ayzik Solomeshch; C. Caria, R. Holland, R. Macdonald 2009-5-8 s.n. Monterey Fort Ord. Mary's Valley. Comment
  UCD85561  Isoetes howellii Ayzik Solomeshch 2009-6-17 s.n. Sacramento Kiefer Landfill, vernal pools. Comment
  UCD85574  Isoetes howellii Ayzik Solomeshch 2009-6-4 s.n. Merced Flying M Ranch, vernal pools. Comment
  UCR113019  Isoetes howellii L. C. Wheeler 1935-8-5 3785 Modoc Warner Mtns, Brandy, E fork Bidwell Creek 2409 Comment
  UCR113634  Isoetes howellii June Latting 1978-6-4 s.n. Riverside Santa Rosa Plateau, Santa Ana Mtns., Santa Rosa Plateau, Mesa de Burro 610 Comment
  UCR12618  Isoetes howellii K. H. Fisher 1968-4-11 680411- 4 San Diego South Coast, San Diego, Kearney Mesa, c. 1 mile west of Hwy 395, edge of Miramar Road Comment
  UCR222301  Isoetes howellii R. F. Thorne, E. W. Lathrop, Steve Beckstrom-Sternberg, B. Martin 1982-1 55204 Riverside Peninsular Ranges; Santa Ana Mountains, SW of Murrieta, Santa Rosa Plateau, Mesa de la Punta near south edge of plateau, approached by De Luz Rd. 579 Comment
  UCR224700  Isoetes howellii Ayzik Solomeshch 2009-5-6 s.n. Monterey Fort Ord, Trail 17 Comment
  UCR225035  Isoetes howellii Ayzik Solomeshch, C. Caria, R. Holland, R. MacDonald 2009-5-8 s.n. Monterey Central Coast, Fort Ord, Mary's Valley Comment
  UCR51945  Isoetes howellii David Charlton 1987-8-29 1082 Madera Sierra Nevada Mtns., Badger Lakes, several miles NE of Devils Post Pile. Minaret Wilderness Area, Inyo National Forest near the town of Mammoth Hot Springs 2900 Comment
  UCR60722  Isoetes howellii R. F. Thorne 1973-5-23 43852 Riverside Santa Rosa Plateau, north side of Mesa de Colorado 610 Comment
  UCSB26167  Isoetes howellii Wilken, Dieter 1969-3-3 San Diego Kearney Mesa, along road between US Highway 101 and US Highway 395, 1.5 miles W of US Highway 395. Comment
  UCSB39086  Isoetes howellii Jorgensen, Jan 1982-3-5 San Diego North San Diego, Clairemont Mesa Blvd. to Kearny Mesa Rd. to its northern end. 100 Comment
  UCSB40613  Isoetes howellii Reisentz, Paul 1979-4-14 Ventura At Mirror Lake, 1 mile south on Hwy 33 from Hwy 150, 3 miles SW of Ojai. Comment
  UCSB44503  Isoetes howellii Reisentz, Paul 1979-4-22 Ventura Mirror Lake, 1/2 miles S of intersection of Hwy 150 and Hwy 33, 3 miles SW of Ojai, 12 miles N of Ventura. 190 Comment
  UCSB52655  Isoetes howellii Thorne, Robert; Thorne, M.; Wisura, Walter 1978-5-21 Riverside Santa Rosa Plateau: Mesa de Colorado. 609 Comment
  UCSB60226  Isoetes howellii Olson, Mark 1993-6-18 Santa Barbara Burton Mesa project area: W of Vandenberg Village, nearly a mile SW of Cabrillo High School, S of Hwy 1. Shown as intermittent pond on Lompoc quadrangle. Comment
  UCSB71152  Isoetes howellii Burgess, Rick; Magney, David 1982-6-26 Ventura Mirror Lake, W side Hwy 33 between Hwy 150 and Woodland Ave. Area destroyed by housing project. 188 Comment
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Jan 29 2019
  YM-YOSE117153  Isoetes howellii Alison Colwell, GROSSENBACHER, DENA --WANAMAKER, HOLLY --MOORE, PEGGY 2005-7-6 AC 05 -52 Tuolumne SMALL LAKE W OF PATE VALLEY, 0.6 KM NE OF MORRISON CREEK-TUOLUMNE RIVER CONFLUENCE, YOSEMITE NATIONAL PARK Comment
  YM-YOSE117981  Isoetes howellii Alison Colwell, SANDERS, ANGELA --COULTER, CHARLOTTE 2004-7-15 AC 04 -145 Tuolumne JUST EAST OF LAKE ELEANOR RANGER STATION, BY BOAT LAUNCH, YOSEMITE NATIONAL PARK. 1444 Comment
  YM-YOSE118501  Isoetes howellii Alison Colwell 2006-8-17 AC 06 -373 Tuolumne Meadow at head of upper Lyell Canyon, Lyell Fork of the Tuolumne River. . 2737 Comment
  YM-YOSE118502  Isoetes howellii Alison Colwell 2006-8-17 AC 06 -373 Tuolumne Meadow at head of upper Lyell Canyon, Lyell Fork of the Tuolumne River. . 2737 Comment
  YM-YOSE118556  Isoetes howellii Alison Colwell 2006-8-29 AC 06 -453 Tuolumne Pond complex 1 mile North of Ireland Creek - Tuolumne River confluence on East side of river, Lyell Canyon. . 2689 Comment
  YM-YOSE118559  Isoetes howellii Alison Colwell 2006-8-30 AC 06 -460 Tuolumne Pond 0.8 mile due West of Parker Pass Creek - Dana Fork of the Tuolumne River confluence and 0.25 mile North of Tioga Pass road. . 2896 Comment
  YM-YOSE118560  Isoetes howellii Alison Colwell 2006-8-30 AC 06 -460 Tuolumne Pond 0.8 mile due West of Parker Pass Creek - Dana Fork of the Tuolumne River confluence and 0.25 mile North of Tioga Pass road. . 2896 Comment
  YM-YOSE118824  Isoetes howellii Dena Grossenbacher 2006-8-2 DG 06 -198 Tuolumne Pond just North of Soda Springs, Tuolumne Meadows. . 2635 Comment
  YM-YOSE119041  Isoetes howellii Dena Grossenbacher 2006-5-29 DG 06 -80 Tuolumne About half way between Hetch Hetchy Backpackers Camp and Kolana Rock, Hetch Hetchy Reservoir. . 1463 Comment
  YM-YOSE119075  Isoetes howellii Maureen McGlinchy, Grossenbacher, Dena --Grove, Sara --Oliver, Martin 2006-6-25 MM 01 Tuolumne Small lake West of Pate Valley, 0.6 km Northest of Morrison Creek-Tuolumne River confluence. . 1317 Comment
  CAS-BOT-BC35924  Isoetes howellii Doreen Smith 2002-6-29 s.n. Marin Mt. Tamalpais. High Marsh. Comment
  CAS-BOT-BC368083  Isoetes howellii Greg de Nevers 1998-4-28 11209 Sonoma Cresta Ranch, Cresta Road east of Mark West Lodge Comment
  CAS-BOT-BC368087  Isoetes howellii Greg de Nevers 1998-3-20 11220 Sonoma Cresta Ranch, Mark West Creek Comment
  CAS-BOT-BC57718  Isoetes howellii Clare R. Wheeler 1978-7-11 496 Mendocino Eden Valley Road 3 mi. N.E. of Hearst 1249 Comment
  CAS-BOT-BC57719  Isoetes howellii Clare R. Wheeler; Gladys L. Smith 1981-5-27 2337 Mendocino Eden Valley Ranch South Pond at summit of road 7 miles N. of Hearst 1219 Comment
  CAS-BOT-BC57720  Isoetes howellii Alice Eastwood; John Thomas Howell 1937-5-31 4450 Mendocino Sherwood Valley Comment
  CAS-BOT-BC57722  Isoetes howellii D. E. Breedlove 1974-4-27 36200 Napa along Silverado Trail just north of junction with Oak Knoll Road Comment
  CAS-BOT-BC57726  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond Comment
  CAS-BOT-BC57727  Isoetes howellii W. R. Dudley 1908-6-26 s.n. San Mateo W. of Seafield Pond, Coal Mine Ridge Comment
  CAS-BOT-BC57730  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley Pond Comment
  CAS-BOT-BC57732  Isoetes howellii J McMurphy 1906-7-28 s.n. San Mateo Coal Mine Ridge - near Portola Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  CAS-BOT-BC57735  Isoetes howellii Peter Rubtzoff 1962-6-8 4890 Sonoma Bennett Mountain Lake Comment
  CAS-BOT-BC57736  Isoetes howellii Peter Rubtzoff 1963-6-22 5188 Sonoma Bennett Mountain Lake Comment
  CAS-BOT-BC57737  Isoetes howellii John Thomas Howell 1934-3-27 11805 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  CAS-BOT-BC57739  Isoetes howellii John Thomas Howell 1934-3-27 11805 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  CAS-BOT-BC69905  Isoetes howellii Alice Eastwood; John Thomas Howell 1938-5-16 5600 Lake 10 mi. n. of Lower Lake. Comment
  CAS-BOT-BC69906  Isoetes howellii J. W. Blankinship 1926-6-16 s.n. Lake Kelseyville, along Cold Cr. Comment
  CAS-BOT-BC69913  Isoetes howellii John Thomas Howell 1947-5-25 23204 Marin Willow Meadow, Mt. Tamalpais. Comment
  CAS-BOT-BC69915  Isoetes howellii John Thomas Howell 1926-8-15 2187 Marin Strand of Lake Lagunitas. Comment
  CAS-BOT-BC69916  Isoetes howellii Brandegee s.n. Marin Olema. Comment
  CAS-BOT-BC69926  Isoetes howellii J. Clausen 1937-7-30 1583 Tuolumne Mather. 1400 Comment
  CAS-BOT-BC69927  Isoetes howellii Carl Mahurin 1937-7-30 25 Tuolumne Mather, w. of Park line. Comment
  CAS-BOT-BC69928  Isoetes howellii John Thomas Howell 1937-5-20 12961 San Benito 12 mi. s. of Paicenes. Comment
  CAS-BOT-BC69929  Isoetes howellii Alice Eastwood; John Thomas Howell 1938-5-5 5457 Madera 5 mi. from Raymond on road to Coarse Gold. Comment
  CAS-BOT-BC69932  Isoetes howellii John Thomas Howell; R. C. Barneby 1954-5-13 29527 Amador Plymouth. 274 Comment
  CAS-BOT-BC69934  Isoetes howellii Clare B. Hardham 1957-5-12 1944 San Luis Obispo Around edges of Green's Lake. Comment
  CAS-BOT-BC69935  Isoetes howellii Clare B. Hardham 1957-5-12 1943 San Luis Obispo Near Green's Lake. Comment
  CAS-BOT-BC69936  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek, near Bosworth's. 457 Comment
  CAS-BOT-BC69937  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek, near Bosworth's. 457 Comment
  CAS-BOT-BC69939  Isoetes howellii W. R. Dudley 1901-4-4 s.n. Monterey Near Upper Bennett Cr. Comment
  CAS-BOT-BC69940  Isoetes howellii Helen K. Sharsmith 1936-5-21 3669 Santa Clara Edge of sag pond, southern end of Mount Day Ridge, Inner S. Coast Ranges, Mount Hamilton Range. 1066 Comment
  CAS-BOT-BC69941  Isoetes howellii Doris Kildale Gillespie 1930-5-14 9359 Tehama 10 mi. e. of Red Bluff on Susanville Road. Comment
  CAS-BOT-BC69948  Isoetes howellii Lowell Ahart 1974-5-30 s.n. Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC69950  Isoetes howellii Lowell Ahart 1975-6-20 s.n. Butte Peter Ahart Ranch, about two mi. n. of Honcut. Comment
  CAS-BOT-BC69974  Isoetes howellii Lowell Ahart 1985-5-5 4890 Sutter Near the first gate to the Dean Ranch, about 1/4 mi. n. of Mallott Road, about 2 mi. ne. of Sutter, Sutter Buttes. 35 Comment
  CAS-BOT-BC69975  Isoetes howellii Lowell Ahart 1986-5-4 5249 Sutter Near the first gate to the Dean Ranch, about 1/2 mi. n. of the intersection of Mallott Road and Alf Road, about 2 mi. 30 Comment
  CDA42452  Isoetes howellii T. C. Fuller 1958-4-15 4793 Butte Highway 99E, 10 miles northwest of Chico. 0 Comment
  GH309036  Isoetes howellii L. C. Wheeler 1935-8-3 3757 Unknown Rock Lake, Pine Creek, Warner Mts. S48, T48N, R15E Comment
  HSC100969  Isoetes howellii Peter Warner 2011-5-27 208 Sonoma Cresta Ranch, Cresta Rd. (off Mark West Springs Rd. at Mark West Lodge), ~1.6 km E of this junction on N edge of road. 0 Comment
  HSC84735  Isoetes howellii Gladys L. Smith, Clare R. Wheeler 5821 Mendocino S end of Leonard Lake, upper Reeves Canyon 518 Comment
  HSC895  Isoetes howellii H. E. Parks, J. P. Tracy 1936-6-13 11325 Del Norte Smith River about 2 mi. E of Gasquet 122 Comment
  HSC896  Isoetes howellii H. E. Parks, S. T. Parks Jun 1938 24137 Del Norte Smith River 122 Comment
  JEPS79612  Isoetes howellii Edward Lee 1974-5-11 Sonoma Laguna R.R. bridge Sebastopol Comment
  OBI22890  Isoetes howellii H. E. Parks, S. T. Parks 1938-6-1 24137 Del Norte Darlingtonia, Smith River 122 Comment
  PGM3698  Isoetes howellii Vern Yadon 1998-5-2 Monterey Northern Monterey County, Ft Ord, Henniken Flats Vernal Areas Comment
  POM203033  Isoetes howellii J. T. Howell 1934-3-27 11805 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  POM210005  Isoetes howellii H. E. Parks 1925-9-18 s.n. Marin Lake Lagunitas. Comment
  POM25514  Isoetes howellii Katherine Brandegee 1910-5-29 s.n. Marin Olema Comment
  POM26550  Isoetes howellii H. F. Copeland 1903-5-30 292 Butte Chico. Comment
  POM28318  Isoetes howellii H. H. Tracy 1918-08 680 San Bernardino Switzers Meadows, margin of brook leading into Arrowhead Lake. San Bernardino Mountains Comment
  POM312958  Isoetes howellii Malcolm A. Nobs, S. Galen Smith 1949-8-18 1386 Plumas Last Chance Marshes at north end of Lake Almanor, just south of Chester. Comment
  RSA116774  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond. Comment
  RSA124098  Isoetes howellii Chas H. Quibell 1953-8-6 3122 Fresno 9000 Mysery L on broad bench on SE side of Dinkey Creek Canyon, 200 above Crk and below 9250 Swede L and the 10400 plus Three Sisters Ridge to the ESE - near headwaters of Dinkey Creek, lowest Trib N Fk Kings River. Comment
  RSA128169  Isoetes howellii Clare B. Hardham 1959-4-19 4260 San Luis Obispo 0.7 mile W of Huero Huero Bridge, Rte 41. Comment
  RSA151818  Isoetes howellii H. E. Parks, S. T. Parks 1938-06 24137 Del Norte Darlingtonia, Smith River 122 Comment
  RSA17907  Isoetes howellii Mary Belle West 1928-6-1 s.n. Santa Clara Back of Stanford University. Comment
  RSA227253  Isoetes howellii Peter Rubtzoff 1963-6-22 5188 Sonoma Bennett Mountain Lake. Comment
  RSA261555  Isoetes howellii W. R. Powell 1970-3-26 1692 Butte Just off of La Porte Road, 1.8 miles NE of Bangor and ca 15 miles SE of Oroville. 343 Comment
  RSA268974  Isoetes howellii J. R. Reeder, C. G. Reeder 1975-6-4 6675 Tehama ca. 4 miles SW of Dales - ca. 11 miles NE of Red Bluffs. 274 Comment
  RSA299560  Isoetes howellii Edward Lee, Annetta Carter 1936-7-4 2273 Santa Clara Pond in hollow in ridge from Mt. Day to junction of Smith and Santa Isabela Creeks, Mt. Hamilton Range. Comment
  RSA518973  Isoetes howellii Barbara Ertter, J. T. Columbus, Holly C. Forbes 1989-4-22 8263 Merced Flying M Ranch, ca 10 air miles NE of Merced. 95 Comment
  RSA54092  Isoetes howellii J. T. Howell 1946-9-1 22977 El Dorado Echo Summit. Comment
  RSA576444  Isoetes howellii L. C. Wheeler 1934-7-3 2871 Siskiyou Soda Creek, Sterling Mt. Siskiyou Mountains. (Mt. Diablo Mer.) 1676 Comment
  RSA639343  Isoetes howellii L. C. Wheeler 1935-8-3 3757 Modoc Warner Mountains: Rock Lake, Pine Creek 1920 Comment
  RSA639344  Isoetes howellii L. C. Wheeler 1935-10-6 4025 Modoc Lily Lake, Pine Creek. (Mt. Diablo Mer.) 2073 Comment
  RSA639347  Isoetes howellii L. C. Wheeler 1935-8-5 3785 Modoc Brandy, E fork Bidwell Creek. (Mt Diablo mer.) 2409 Comment
  RSA684565  Isoetes howellii T. R. Pray 1955-7-18 1024 Tuolumne Mather. Comment
  RSA87748  Isoetes howellii C. L. Hitchcock 1952-6-25 19616 Shasta Between Project and Redding. Comment
  RSA88934  Isoetes howellii Chas H. Quibell 1953-6-2 2156 Fresno B3 ditch where it siphons successively under Shaw Ave., Santa Fe RR and Jeanne Ave, NW of Fresno. Comment
  SBBG122675  Isoetes howellii J. Dittes 2003-5-25 2003 -28 Placer ca. 3.3 air-mi S of Lincoln, 0.5 air-mi E of jct of State Hwy 65 and Twelve Bridges Exit 39 Comment
  SBBG128804  Isoetes howellii L. Ahart 2013-5-22 18703 Butte ca. 0.5 mi SE of the Honcut Cemetery, ca. 3.25 mi NE of Honcut 54 Comment
  SD120719  Isoetes howellii Edward Lee, Annetta Carter 1936-7-4 2273 Santa Clara Mount Hamilton Range, pond in hollow on ridge from Mt. Day to junction of Smith and Santa Isabela creeks Comment
  SD131805  Isoetes howellii Barbara Ertter, Travis Columbus, Holly Forbes 1989-4-22 8263 Merced Flying M Ranch, ca 10 air miles northeast of Merced, along streamlet cutting through low bluffs southeast of pools on Burns Creek 92 Comment
  SEINET10470692  Isoetes howellii Lowell Ahart 1985-5-5 Ahart 4890 Sutter Near the first gate to the Dean Ranch, about 1/4 mile north of Mallott Road, about 2 miles north-east of Sutter. Comment
  SEINET10794085  Isoetes howellii Wayne Roderick Roderick s.n. Sonoma In a vernal pool, in the Sonoma Mountains east of Cotati, on the Rivers Ranch. 305 Comment
  SEINET10807508 Image available Isoetes howellii Samuel B. Parish, W. F. Parish 1882-8-1 Parish 1440 Unknown Bear Valley, San Bernardino Mountains. 2134 Comment
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Oct 1 2017
  SEINET10839545  Isoetes howellii Lowell Ahart 1983-6-6 Ahart 4031 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 Comment
  SEINET10932892  Isoetes howellii Mary Susan Taylor 1980-5-24 Taylor 2738 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET11718944  Isoetes howellii Unknown 1982-1 641 Tehama Vina Plains Preserve, ca 30 m S of Lassen Road in W pasture 66 Comment
  SEINET207377 Image available Isoetes howellii R. Bacigalupi, GT Robbins 1959-4-23 7036 Shasta Along Hwy 299 about 2 mi W of Bella Vista 183 Comment
  SEINET3014527  Isoetes howellii Lowell Ahart 1997-8-28 7874 Sierra Sierra County, CA West of the Pacific Crest Trail and Bunker Hill Ridge, about 1 mi W of Bunker Hill Mine, about 1 mi SE of Pilot Peak Comment
  SEINET3863766  Isoetes howellii Katherine Pinney 1975-4-8 12 Sacramento Fair Oaks, Phoeniz Airfield, 1/4 mile east of Hazel Avenue on Sunset Road.; 0 61 Comment
  SEINET3863772  Isoetes howellii Alv Dan Youngberg 1968-4-13 901 Butte On Table Mountain above Oroville.; 0 Comment
  SEINET3863777  Isoetes howellii H. E. Parks 1925-9-18 s.n. Marin Lake Lugunitas.; 0 Comment
  SEINET3863780  Isoetes howellii D. W. McNeal 1983-4-22 2797 Calaveras Beside the rd. to Jenny Lind, 0.2 mi. s. of Hwy. #26 at Stone Corral.; 0 Comment
  SEINET3863802 Image available Isoetes howellii Barbara Ertter, Jeff Strachan; Lowell Ahart 1980-5-7 3288 Butte Peter Ahart Ranch ca 2 1/2 mi NNE of Honcut between Oroville and Marysville, dry ditches in oat field near ponds, Valley Grassland.; 0 30 Comment
  SEINET6164860  Isoetes howellii M. Lavin, K. Warren 1979-9-2 s.n. Modoc South Warner Wilderness Area, along N edge of N Emerson Lake 2438 Comment
  SEINET6164863  Isoetes howellii L. C. Wheeler 1935-8-3 3757 Modoc Warner Mtns; Rock Lake, Pine Creek 1920 Comment
  UC1177514  Isoetes howellii John Thomas Howell 1947-5-25 23204 Marin Mt. Tamalpais, Willow Meadow Comment
  UC1223545  Isoetes howellii Joseph P. Tracy with Mr. Murphy 1951-6-26 19582 Humboldt upper of Twin Lakes Comment
  UC1584757  Isoetes howellii Ed Lee 1979-6-9 Marin High Marsh Comment
  UC1728010  Isoetes howellii Vern Yadon 1998-5-7 Monterey BLM Lands e. of Hennekin's Ranch Rd. Fort Ord Comment
  UC1818909  Isoetes howellii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14032 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, in water of pond west of road in grassy flat. Comment
  UC1950034  Isoetes howellii R. F. Thorne, E. W. Lathrop, S. Bickstrom-Sternberg, B. Martin May 1982 55204 Riverside Peninsular Ranges; Santa Ana Mountains region: SW of Murrieta. Santa Rosa Plateau, Mesa de la Punta near S. edge of plateau, approached from De Luz road. Comment
  UC400942  Isoetes howellii Mrs. C. C. Hall 1923-1 Tuolumne Salt Log near Mather (on ridge rd.); Salt Log Comment
  UC936235  Isoetes howellii Joseph P. Tracy 1949-7-19 18398 Humboldt Grouse Mt., Mud Lake 1524 Comment
  UCD135846  Isoetes howellii Rimo Bacigalupi; G. T. Robbins 1959-4-23 7036 Shasta Along U.S. Highway 299, Salmon Creek, about 2 miles west of Bella Vista. 201 Comment
  UCD135849  Isoetes howellii Rimo Bacigalupi; G. T. Robbins 1956-6-1 5693 Lake At eastern end of 'Dry Lake', 1.4 miles west of Lower Lake. 457 Comment
  UCD135851  Isoetes howellii Leslie Coburn 1975-5-31 121 Calaveras Ca. 9.8 miles east of Westpoint, Winton Road. 914 Comment
  UCD135854  Isoetes howellii Malcolm A. Nobs; S. Galen Smith 1949-8-18 1386 Plumas Last Chance Marshes at north end of Lake Almanor, just south of Chester. Comment
  UCD135856  Isoetes howellii W. R. Powell 1970-3-26 1692 Butte Just off of La Porte Road, 1.8 miles northeast of Bangor and ca. 15 miles southeast of Oroville. 342 Comment
  UCD135860  Isoetes howellii W. R. Russell 1972-5-25 s.n. Napa Just west of State Highway 29 and south of Calistoga. Comment
  UCD135879  Isoetes howellii Charles H. Pinney 1975-4-8 12 Sacramento Fair Oaks, Phoenix Airfield. 1/4 mi E of Hazel Avenue on Sunset Road. 60 Comment
  UCD135884  Isoetes howellii Janey Veneman 1974-6-1 15 Sacramento Sunset Ace. Across from Phoenix Field, 0.7 miles east of junction with Hazel Ave. 21 Comment
  UCD34316  Isoetes howellii Beecher Crampton 1980-4-23 9705 Solano Solano County, 3/4 mile north of Allendale store, 1/4 mile north of Allendale road along Winters road. Comment
  UCSB50187  Isoetes howellii Gray, John 1976-5-8 Sacramento Phoenix Park, on Sunset Ave. approx. 3 miles N of Hwy 50 at Hazel Avenue exit. T 9N, R 7E. 76 Comment
  UCSB61659  Isoetes howellii Ertter, Barbara; Columbus, Travis; Forbes, Holly 1989-4-22 Merced Flying M Ranch ca 10 air miles NE of Merced, T65 R15E. Pool along streamlet cutting through low bluffs SE of pools on Burns Creek. 94 Comment
  UCSB6994  Isoetes howellii Hardham, Clare 1963-6-5 Monterey Bryson Comment
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Sep 16 2015
  UCSC009757  Isoetes howellii D. Styer, D. Neubauer 2010-4-29 270 Monterey Mary's Valley (Ft Ord Region H7) Comment
  JEPS104917  Isoetes howellii var. howellii Dean W. Taylor 1995-7-2 15208 Shasta Goose Valley Road about 1.5 miles North of Highway 299 junction, adjacent to railroad tracks 944 Comment
  SEINET10754764 Image available Isoetes howellii var. minima Alice Eastwood 1896-7-4 Eastwood S.N. Unknown marsh about a mile from Marin County, California Comment



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