Aizoaceae GH: 01860263 Trianthema portulacastrum Linnaeus USA: California Kern County East Side. Pond region: Magnolia... E. C. Twisselmann 8974 1963-9-6
Apocynaceae GH: 02178187 Apocynum floribundum Greene USA: California Shirley Meadows Road, 1.9 miles south of Gre... E. C. Twisselmann 4662 1958-8-13
Asteraceae GH: 02141830 Agoseris retrorsa (Bentham) Greene USA: California [data not captured] E. C. Twisselmann 13249 1967-5-31
GH: 00387003 Benitoa occidentalis (H. M. Hall) D. D. Keck USA: California Castle Mountains: Parkfield-Coalinga Grade 0... E. C. Twisselmann 17507 1970-10-9
GH: 00427974 Cirsium crassicaule (Greene) Jepson USA: California 1 mile north of Goose Lake E. C. Twisselmann 1593 1954-9-26
GH: 00387089 Corethrogyne filaginifolia (Hooker & Arnott) Nuttall USA: California Shaver Lake Road, 1.5 mile above Mountain Ho... E. C. Twisselmann 16128 1969-9-10
GH: 00387232 Ericameria arborescens Greene USA: California Tule River Canyon just above the Wishon Powe... E. C. Twisselmann 9070 1963-10-3
GH: 00387291 Ericameria bloomeri (A. Gray) J. F. Macbride USA: California Ridge east of Paloma Meadow E. C. Twisselmann 13895 1967-9-21
GH: 00387292 Ericameria bloomeri (A. Gray) J. F. Macbride USA: California Forest loop road 2.2 miles west of Black Roc... E. C. Twisselmann 13923 1967-9-21
GH: 00387346 Ericameria cuneata (A. Gray) McClatchie USA: California Johnsondale Road, on west side of Kern River E. C. Twisselmann 4060 1957-9-19
GH: 00387347 Ericameria cuneata (A. Gray) McClatchie USA: California Lamreau Creek at the falls E. C. Twisselmann 11618 1965-10-1
GH: 02207916 Erigeron breweri covillei (Greene) G. L. Nesom USA: California [data not captured] E. C. Twisselmann 7891 1962-9-20
GH: 02206819 Erigeron divergens Torrey & A. Gray USA: California [data not captured] E. C. Twisselmann 4844 1958-10-1
GH: 00417559 Erigeron multiceps Greene USA: California Roadside .2 mile above the KR3 Power House, ... E. C. Twisselmann 17576 1971-4-25
GH: 00414881 Eriophyllum confertiflorum (de Candolle) A. Gray USA: California East slope of Morris Peak, Shandon E. C. Twisselmann 4519 1958-5-27
GH: 00387232 Haplopappus arborescens (A. Gray) H. M. Hall USA: California Tule River Canyon just above the Wishon Powe... E. C. Twisselmann 9070 1963-10-3
GH: 00387291 Haplopappus bloomeri A. Gray USA: California Ridge east of Paloma Meadow E. C. Twisselmann 13895 1967-9-21
GH: 00387292 Haplopappus bloomeri A. Gray USA: California Forest loop road 2.2 miles west of Black Roc... E. C. Twisselmann 13923 1967-9-21
GH: 00387346 Haplopappus cuneatus A. Gray USA: California Johnsondale Road, on west side of Kern River E. C. Twisselmann 4060 1957-9-19
GH: 00387347 Haplopappus cuneatus A. Gray USA: California Lamreau Creek at the falls E. C. Twisselmann 11618 1965-10-1
GH: 00417937 Hazardia stenolepis (H. M. Hall) Hoover USA: California Don's Canyon, a fork of upper Cedar Canyon E. C. Twisselmann 11680 1965-10-5
GH: 01832086 Hieracium Horridum Fries USA: California [data not captured] E. C. Twisselmann 9878 1964-7-24
GH: 00414617 Layia leucopappa D. D. Keck USA: California Comanche Hills along Tejon Creek, 1 mile abo... E. C. Twisselmann 15145 1969-4-19
GH: 00427389 Pseudobahia peirsonii Munz USA: California Delano Road, 9.5 miles west of Woody E. C. Twisselmann 4244 1958-4-12
GH: 00282416 Pseudognaphalium luteoalbum (Linnaeus) Hilliard & B. L. Burtt USA: California Lumreau Creek, ca. 0.5 mile above Cedar Cree... E. C. Twisselmann 11631 1965-10-1
GH: 00427828 Senecio scorzonella Greene USA: California Mt. Conness Region: Steelhead Lake Basin E. C. Twisselmann 5687 1959-9-11
GH: 00443109 Stephanomeria tenuifolia (Torrey) H. M. Hall USA: California Monache Jeep Trail, 4 miles north of Black R... E. C. Twisselmann 13767 1967-9-20
GH: 00443110 Stephanomeria tenuifolia (Torrey) H. M. Hall USA: California southeast side of Big Meadow, the Kern Plate... E. C. Twisselmann 16221 1969-10-1
GH: 00443111 Stephanomeria tenuifolia (Torrey) H. M. Hall USA: California Beach Creek above Beach Meadow, the Kern Pla... E. C. Twisselmann 12670 1966-8-3
GH: 00427921 Tetradymia spinosa longispina M. E. Jones USA: California The Kern Plateau, Sacatar Meadows E. C. Twisselmann 13483 1967-6-27
GH: 00427922 Tetradymia spinosa longispina M. E. Jones USA: California Cyrus Canyon E. C. Twisselmann 17616 1971-4-26
Boraginaceae GH: 01956344 Amsinckia intermedia Fischer & C. A. Meyer USA: California just above the Cherry Hill Road E. C. Twisselmann 13229 1967-5-31
Brassicaceae GH: 00378739 Barbarea orthoceras Ledebour USA: California Ice Creek at the Johnsondale-Quaking Aspen R... E. C. Twisselmann 5492 1959-7-8
GH: 00378740 Barbarea orthoceras Ledebour USA: California Beach Meadow E. C. Twisselmann 14479 1968-6-26
GH: 00932677 Boechera holboelii pinetorum (Tidestrom) Dorn USA: California Ridge at head of Dark Canyon, west of Bald M... E. C. Twisselmann 14446A 1968-6-26
GH: 00946935 Boechera platysperma (A. Gray) Al-Shehbaz USA: California Trail to Sunday Peak E. C. Twisselmann 3862 1957-7-23
GH: 00946993 Boechera puberula (Nuttall) Dorn USA: California Pass at the head of Dark Canyon (a branch of... E. C. Twisselmann 14408 1968-6-26
GH: 00960274 Boechera rectissima (Greene) Al-Shehbaz USA: California Church Dome Trail, ca. 1.5 mile north of Tay... E. C. Twisselmann 17818 1971-7-15
GH: 00960285 Boechera rectissima (Greene) Al-Shehbaz USA: California Cherry Hill Road at the summit northwest of ... E. C. Twisselmann 16929 1970-6-27
GH: 00960805 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Mahogany Creek E. C. Twisselmann 11500 1965-8-19
GH: 00944183 Boechera sp. USA: California [data not captured] E. C. Twisselmann 14446 1968-6-26
GH: 00948341 Boechera sparsiflora (Nuttall) Dorn USA: California North slope of King George Mountain (above D... E. C. Twisselmann 11811 1966-4-6
GH: 00948359 Boechera sparsiflora (Nuttall) Dorn USA: California Breckenridge Mountain Road, 6.8 miles south ... E. C. Twisselmann 4987 1959-4-1
GH: 00948369 Boechera sparsiflora (Nuttall) Dorn USA: California Three miles above the Johnsondale Bridge E. C. Twisselmann 16547 1970-5-7
GH: 00948370 Boechera sparsiflora (Nuttall) Dorn USA: California Cherry Hill Road 0.8 mile above the Kern Can... E. C. Twisselmann 13214 1967-5-31
GH: 00948371 Boechera sparsiflora (Nuttall) Dorn USA: California Cherry Hill Road 0.8 mile above the Kern Can... E. C. Twisselmann 13214 1967-5-31
GH: 00948389 Boechera sparsiflora (Nuttall) Dorn USA: California Kern Canyon, 5.1 miles west of Richbar E. C. Twisselmann 5933 1960-4-2
GH: 00944771 Brassica rapa Linnaeus USA: California Mouth of Mill Creek, coastal strand E. C. Twisselmann 12963 1967-4-27
GH: 01097780 Cakile maritima Scopoli USA: California Highway 1, 2.9 miles south of Piedras Blanca... E. C. Twisselmann 12918 1967-4-27
GH: 01098163 Capsella bursa-pastoris (Linnaeus) Medikus USA: California Goose Lake Canal near the south boundary of ... E. C. Twisselmann 10469 1965-3-17
GH: 01098760 Cardamine breweri S. Watson USA: California Curliss Meadow E. C. Twisselmann 14422 1968-6-26
GH: 00378915 Cardamine californica (Nuttall) Greene USA: California Kern Canyon: ravine 3.6 miles east of Democr... E. C. Twisselmann 5929 1960-4-2
GH: 00378927 Cardamine californica (Nuttall) Greene USA: California Tejon Ranch: upper forks of Palos Altos Cany... E. C. Twisselmann 6964 1962-4-18
GH: 01540338 Caulanthus anceps Payson USA: California Summit of Firebreak Grade E. C. Twisselmann 6743 1962-4-1
GH: 01540341 Caulanthus anceps Payson USA: California Hills at the summit of Palo Prieta Canyon E. C. Twisselmann 6707 1962-3-18
GH: 01087230 Caulanthus cooperi (S. Watson) Payson USA: California Draw 0.7 mile west of Aguerrebery Point E. C. Twisselmann 11952 1966-4-13
GH: 00379039 Caulanthus coulteri S. Watson USA: California West slope of Breckenridge Mountain E. C. Twisselmann 10508 1965-4-14
GH: 00379076 Caulanthus coulteri lemmonii (S. Watson) Munz USA: California Hills at the summit of Palo Prieta Canyon E. C. Twisselmann 3264 1957-3-21
GH: 00379094 Caulanthus coulteri lemmonii (S. Watson) Munz USA: California Salt Canyon, Choice Valley Hills E. C. Twisselmann 9216 1964-3-8
GH: 00379095 Caulanthus coulteri lemmonii (S. Watson) Munz USA: California Cottonwood Pass, about 3.3 miles east of Cho... E. C. Twisselmann 6731 1962-3-28
GH: 00379076 Caulanthus lemmonii S. Watson USA: California Hills at the summit of Palo Prieta Canyon E. C. Twisselmann 3264 1957-3-21
GH: 00379095 Caulanthus lemmonii S. Watson USA: California Cottonwood Pass, about 3.3 miles east of Cho... E. C. Twisselmann 6731 1962-3-28
GH: 00379094 Caulanthus lemmonii S. Watson USA: California Salt Canyon, Choice Valley Hills E. C. Twisselmann 9216 1964-3-8
GH: 00986429 Descurainia incisa (Engelmann) Britton USA: California [data not captured] E. C. Twisselmann 14410 1968-6-26
GH: 01084239 Descurainia pinnata menziesii (de Candolle) Detling USA: California [data not captured] E. C. Twisselmann 6256 1961-5-24
GH: 00379421 Erysimum capitatum (Douglas ex Hooker) Greene USA: California East slope of Morris Peak E. C. Twisselmann 4516 1958-5-27
GH: 00379444 Erysimum capitatum (Douglas ex Hooker) Greene USA: California Pass between Long Meadow and Cannell Meadow E. C. Twisselmann 9914 1964-7-24
GH: 00379479 Erysimum capitatum (Douglas ex Hooker) Greene USA: California Rosamund region: 1.3 miles east of Highway 6... E. C. Twisselmann 6829 1962-4-10
GH: 00379503 Erysimum capitatum (Douglas ex Hooker) Greene USA: California Pleito Hills E. C. Twisselmann 8089 1963-4-18
GH: 00379513 Erysimum capitatum (Douglas ex Hooker) Greene USA: California West side of Rankin Flat E. C. Twisselmann 9402 1964-5-15
GH: 00379535 Erysimum capitatum bealianum (Jepson) Rossbach USA: California Southern Sierra Nevada: near the summit of G... E. C. Twisselmann 3494 1957-5-10
GH: 00379545 Erysimum perenne (S. Watson ex Coville) Abrams USA: California Crest of Piute Mountain E. C. Twisselmann 8912 1963-8-30
GH: 01540191 Guillenia lasiophylla (Hooker & Arnott) Greene USA: California [data not captured] E. C. Twisselmann 11883 1966-4-12
GH: 01540272 Guillenia lasiophylla (Hooker & Arnott) Greene USA: California [data not captured] E. C. Twisselmann 12006 1966-4-26
GH: 01540643 Hirschfeldia incana (Linnaeus) Lagreze-Fossat USA: California [data not captured] E. C. Twisselmann 16707 1970-6-11
GH: 01540644 Hirschfeldia incana (Linnaeus) Lagreze-Fossat USA: California [data not captured] E. C. Twisselmann 8001 1962-11-14
GH: 01546775 Lepidium appelianum Al-Shehbaz USA: California [data not captured] E. C. Twisselmann 5545 1959-7-7
GH: 01548423 Lepidium dictyotum A. Gray USA: California [data not captured] E. C. Twisselmann 6860 1962-4-10
GH: 01548459 Lepidium dictyotum acutidens A. Gray USA: California [data not captured] E. C. Twisselmann 10466 1965-3-17
GH: 01548570 Lepidium draba Linnaeus USA: California [data not captured] E. C. Twisselmann 10853 1965-5-18
GH: 01548636 Lepidium draba chalepense (Linnaeus) Thellung USA: California [data not captured] E. C. Twisselmann 11447 1965-8-18
GH: 00379671 Lepidium fremontii S. Watson USA: California Saddleback Mountain, northwestern San Bernar... E. C. Twisselmann 8159 1963-5-10
GH: 00379777 Lepidium virginicum pubescens (Greene) C. L. Hitchcock USA: California Shirley Meadows Ski Slope E. C. Twisselmann 3821 1957-7-23
GH: 00379888 Stanleya pinnata (Pursh) Britton USA: California ca. 3 miles south of Lockhart E. C. Twisselmann 12046 1966-4-27
GH: 00422044 Streptanthus cordatus Nuttall ex Torrey & A. Gray USA: California Champagne Spring on the northwest flank of C... E. C. Twisselmann 12355 1966-6-9
GH: 00422057 Streptanthus cordatus piutensis J. T. Howell USA: California North end of Piute Mountain (2.1 miles above... E. C. Twisselmann 8893 1963-8-30
GH: 00422066 Streptanthus diversifolius S. Watson USA: California Mineral King Road, 6.0 miles below Silver Ci... E. C. Twisselmann 14308 1968-6-1
GH: 00422075 Streptanthus farnsworthianus J. T. Howell USA: California ridge north of the head of Lumreae Creek (th... E. C. Twisselmann 16607 1970-5-23
GH: 00422215 Streptanthus insignis Jepson USA: California Parkfield Grade, 1 miles south of the summit E. C. Twisselmann 10782 1965-5-10
GH: 00422532 Tropidocarpum gracile Hooker USA: California Choice Valley, 0.25 mile south of Grant's La... E. C. Twisselmann 6709 1962-3-19
GH: 01733032 Turritis glabra Linnaeus USA: California Tehachapi-Kernville Region: Squirrel Meadow,... E. C. Twisselmann 11261 1965-7-27
GH: 01733043 Turritis glabra Linnaeus USA: California Kern Plateau E. C. Twisselmann 14419 1968-6-26
GH: 01733047 Turritis glabra Linnaeus USA: California Little Troy Meadow E. C. Twisselmann 12704 1966-8-3
Campanulaceae GH: 00033348 Nemacladus twisselmannii J. T. Howell USA: California Rim of the Kern Plateau southwest of Pine Fl... E. C. Twisselmann 8690 1963-7-10
Caryophyllaceae GH: 01741887 Arenaria macradenia ferrisiae Abrams USA: California Kern River Canyon, 0.3 mile above Roads End E. C. Twisselmann 11448 1965-8-18
GH: 00376625 Loeflingia pusilla Curran USA: California Dunes at the southeast end of Buckhorn Lake,... E. C. Twisselmann 10838 1965-5-18
GH: 00376625 Loeflingia squarrosa Nuttall ex Torrey & A. Gray USA: California Dunes at the southeast end of Buckhorn Lake,... E. C. Twisselmann 10838 1965-5-18
Convolvulaceae GH: 00369408 Calystegia longipes (S. Watson) Brummitt USA: California Chimney Peak road, 0.7 mile above Rock House... E. C. Twisselmann 15834 1969-8-1
GH: 00369408 Convolvulus longipes S. Watson USA: California Chimney Peak road, 0.7 mile above Rock House... E. C. Twisselmann 15834 1969-8-1
GH: 00369491 Convolvulus simulans Perry USA: California Adobe Knoll at the head of Adobe Canyon E. C. Twisselmann 10597 1965-4-26
Cyperaceae GH: 02371641 Carex alma L. H. Bailey USA: California [data not captured] E. C. Twisselmann 5515 1959-7-8
GH: 02371640 Carex alma L. H. Bailey USA: California [data not captured] E. C. Twisselmann 10352 1964-10-21
GH: 02395712 Carex jonesii L. H. Bailey USA: California [data not captured] E. C. Twisselmann 5517 1959-7-8
GH: 02395692 Carex jonesii L. H. Bailey USA: California [data not captured] E. C. Twisselmann 8642 1963-7-9
GH: 02405400 Carex rossii Boott USA: California [data not captured] E. C. Twisselmann 16721 1970-6-24
Fabaceae GH: 01992923 Acmispon americanus (Nuttall) Rydberg USA: California Kern River at Hart Memorial Park E. C. Twisselmann 6614 1961-10-5
GH: 01963139 Acmispon argophyllus (A. Gray) Brouillet USA: California Main road, 1.9 mile above the lumber mill. E. C. Twisselmann 14132 1968-5-9
GH: 01963140 Acmispon argophyllus (A. Gray) Brouillet USA: California Sierra Alta Road, 6.5 miles west of Lake Isa... E. C. Twisselmann 3569 1957-5-24
GH: 00366548 Acmispon glaber (Vogel) Brouillet USA: California Bakersfield Highway just west of Hart Flat E. C. Twisselmann 11164 1965-7-6
GH: 01963369 Acmispon glaber brevialatus (Vogel) Brouillet USA: California Haight Canyon, 1.9 miles east of Havilah E. C. Twisselmann 12136 1966-5-10
GH: 01963407 Acmispon grandiflorus (Bentham) Brouillet USA: California Kern River Canyon, 5.5 miles north of Kernvi... E. C. Twisselmann 3564 1957-5-24
GH: 01963746 Acmispon nevadensis (S. Watson) Brouillet USA: California Glennville Road, 2.5 miles east of Granite S... E. C. Twisselmann 6111 1961-5-4
GH: 01963939 Acmispon procumbens jepsonii (Ottley) Brouillet USA: California Ridge north of Last Chance Meadow E. C. Twisselmann 12515 1966-6-25
GH: 01963941 Acmispon procumbens jepsonii (Ottley) Brouillet USA: California Forks of the Kern E. C. Twisselmann 17715 1971-6-20
GH: 01967044 Acmispon strigosus (Nuttall) Brouillet USA: California Southwest slope of Sunday Peak E. C. Twisselmann 5231 1959-5-21
GH: 01967118 Acmispon strigosus (Nuttall) Brouillet USA: California Mineral King Road, 12.9 miles above Hammond E. C. Twisselmann 14259 1968-6-1
GH: 00366326 Astragalus lentiginosus kernensis (Jepson) Barneby USA: California Ridge southeast of Troy Meadow E. C. Twisselmann 11525 1965-8-19
GH: 00366543 Hosackia oblongifolia Bentham USA: California Mule Peak: Bone Meadow E. C. Twisselmann 5489 1959-7-8
GH: 00366543 Lotus cupreus Greene USA: California Mule Peak: Bone Meadow E. C. Twisselmann 5489 1959-7-8
GH: 00366543 Lotus oblongifolius cupreus (Greene) Ottley USA: California Mule Peak: Bone Meadow E. C. Twisselmann 5489 1959-7-8
GH: 00366548 Lotus scoparius Nuttall USA: California Bakersfield Highway just west of Hart Flat E. C. Twisselmann 11164 1965-7-6
GH: 00366678 Lupinus albifrons Bentham USA: California North slope of King George Mountain (above D... E. C. Twisselmann 11814 1966-4-6
GH: 00366837 Lupinus breweri grandiflorus C. P. Smith USA: California East fork of upper Bartolas Creek E. C. Twisselmann 12476 1966-6-24
GH: 00366966 Lupinus excubitus M. E. Jones USA: California Old quarry just below the summit of Chimney ... E. C. Twisselmann 15832 1969-8-1
GH: 00366967 Lupinus excubitus M. E. Jones USA: California Bull Run Creek Road, 1.4 mile northwest of K... E. C. Twisselmann 5917 1960-4-2
GH: 02176362 Lupinus formosus Greene USA: California [data not captured] E. C. Twisselmann 7047 1962-5-7
GH: 02176499 Lupinus grayii S. Watson USA: California [data not captured] E. C. Twisselmann 10977 1965-6-4
GH: 02176503 Lupinus grayii S. Watson USA: California [data not captured] E. C. Twisselmann 8521 1963-6-27
GH: 02177275 Lupinus microcarpus densiflorus (Bentham) Jepson USA: California [data not captured] E. C. Twisselmann 6109 1961-5-4
GH: 02177528 Lupinus odoratus A. Heller USA: California [data not captured] E. C. Twisselmann 7040 1962-5-7
GH: 02128057 Lupinus polyphyllus superbus (A. Heller) Munz USA: California [data not captured] E. C. Twisselmann 15876 1969-8-1
GH: 02137869 Trifolium albopurpureum Torrey & A. Gray USA: California [data not captured] E. C. Twisselmann 11823 1966-4-6
GH: 02619399 Trifolium appendiculatum Lojacono USA: California [data not captured] E. C. Twisselmann 15246 1969-5-9
GH: 02619424 Trifolium appendiculatum Lojacono USA: California [data not captured] E. C. Twisselmann 15246 1969-5-9
GH: 02619425 Trifolium appendiculatum Lojacono USA: California [data not captured] E. C. Twisselmann 8251 1963-5-17
GH: 02342558 Trifolium ciliolatum Bentham USA: California [data not captured] E. C. Twisselmann 9245 1964-4-25
GH: 02619493 Trifolium cyathiferum Lindley USA: California [data not captured] E. C. Twisselmann 15798 1969-7-30
GH: 02619494 Trifolium cyathiferum Lindley USA: California [data not captured] E. C. Twisselmann 13789 1967-9-20
GH: 02343302 Trifolium longipes Nuttall USA: California [data not captured] E. C. Twisselmann 13864 1967-9-21
GH: 02343642 Trifolium microcephalum Pursh USA: California [data not captured] E. C. Twisselmann 9876 1964-7-24
GH: 02343641 Trifolium microcephalum Pursh USA: California [data not captured] E. C. Twisselmann 9799 1964-7-23
GH: 02343640 Trifolium microcephalum Pursh USA: California [data not captured] E. C. Twisselmann 14599 1968-7-16
GH: 02343639 Trifolium microcephalum Pursh USA: California [data not captured] E. C. Twisselmann 7560 1962-7-20
GH: 02343638 Trifolium microcephalum Pursh USA: California [data not captured] E. C. Twisselmann 14142 1968-5-9
GH: 01816221 Trifolium variegatum Nuttall USA: California [data not captured] E. C. Twisselmann 4485 1958-5-21
GH: 02498792 Trifolium variegatum Nuttall USA: California Kern Plateau: Poison Meadow Creek E. C. Twisselmann 5538 1959-7-8
GH: 02498791 Trifolium variegatum Nuttall USA: California Bartollas Creek, near its summit E. C. Twisselmann 12450 1966-6-25
GH: 02498790 Trifolium variegatum Nuttall USA: California Poison Meadow E. C. Twisselmann 16151 1969-9-30
GH: 01816230 Trifolium willdenovii Sprengel USA: California [data not captured] E. C. Twisselmann 9239 1964-4-25
GH: 01816231 Trifolium willdenovii Sprengel USA: California [data not captured] E. C. Twisselmann 10616 1965-4-26
GH: 01816232 Trifolium willdenovii Sprengel USA: California [data not captured] E. C. Twisselmann 4237 1958-4-12
GH: 02289237 Trifolium willdenovii Sprengel USA: California [data not captured] E. C. Twisselmann 4237 1958-4-12
GH: 02344407 Trifolium wormskioldii Lehmann USA: California [data not captured] E. C. Twisselmann 3976 1957-8-13
GH: 02289317 Trifolium wormskioldii Lehmann USA: California [data not captured] E. C. Twisselmann 3851 1957-7-23
Hydrophyllaceae GH: 00402988 Phacelia mohavensis A. Gray USA: California South Fork of the head of Bartolas Creek E. C. Twisselmann 17857 1971-7-15
GH: 00401047 Phacelia ramosissima Douglas ex Lehmann USA: California South flank of Mule Peak E. C. Twisselmann 5474 1959-7-8
Juncaceae GH: 02099689 Juncus balticus mexicanus (Willdenow ex Roemer & Schultes) Snogerup USA: California [data not captured] E. C. Twisselmann 17745 1971-6-20
GH: 02102216 Juncus dubius Engelmann USA: California [data not captured] E. C. Twisselmann 19223 1972-9-22
GH: 02401153 Juncus exiguus (Fernald & Wiegand) Lint ex Snogerup & Zika USA: California [data not captured] E. C. Twisselmann 4065 1957-9-19
GH: 02400011 Juncus macrandrus Coville USA: California [data not captured] E. C. Twisselmann 4859 1958-10-1
GH: 02400012 Juncus macrophyllus Coville USA: California [data not captured] E. C. Twisselmann 13827 1967-9-20
GH: 02400735 Juncus nevadensis S. Watson USA: California [data not captured] E. C. Twisselmann 14435 1968-6-26
GH: 02399224 Juncus orthophyllus Coville USA: California [data not captured] E. C. Twisselmann 9909 1964-7-24
GH: 02399283 Juncus parryi Engelmann USA: California [data not captured] E. C. Twisselmann 5705 1959-9-11
GH: 02398178 Juncus rugulosus Engelmann USA: California [data not captured] E. C. Twisselmann 19193 1972-9-22
GH: 02398202 Juncus saximontanus A. Nelson USA: California [data not captured] E. C. Twisselmann 10337 1964-10-21
GH: 02398582 Juncus sphaerocarpus Nees USA: California [data not captured] E. C. Twisselmann 13909 1967-9-21
GH: 02396694 Luzula cascadensis Zika USA: California [data not captured] E. C. Twisselmann 14350 1968-6-25
Lamiaceae GH: 00400521 Monardella breweri lanceolata (A. Gray) A. C. Sanders & Elvin USA: California West slope of Basket Peak E. C. Twisselmann 7719 1962-8-27
GH: 00400595 Monardella odoratissima pallida (A. Heller) Epling USA: California West side of East Sirretta Pass E. C. Twisselmann 15759 1969-7-30
GH: 00400610 Monardella odoratissima pallida (A. Heller) Epling USA: California Kaiser Meadow E. C. Twisselmann 16109 1969-9-10
GH: 00400980 Scutellaria austiniae Eastwood USA: California South fork of the head of Bartolas Creek E. C. Twisselmann 17896 1971-7-15
Lemnaceae GH: 00404072 Lemna trisulca Linnaeus USA: California Fish Creek at the west end of Troy Meadow E. C. Twisselmann 10000 1964-8-21
Limnanthaceae GH: 01181350 Limnanthes montana Jepson USA: California [data not captured] E. C. Twisselmann 10960 1965-6-4
GH: 01181351 Limnanthes montana Jepson USA: California [data not captured] E. C. Twisselmann 8247 1963-5-17
Malvaceae GH: 00385045 Sidalcea malviflora sparsifolia C. L. Hitchcock USA: California Canyon mouth 0.5 mile below Kern Hot Springs E. C. Twisselmann 7037 1962-5-7
GH: 00420850 Sidalcea multifida Greene USA: California The Kern Plateau E. C. Twisselmann 13471 1967-6-27
GH: 00420903 Sidalcea ranunculacea Greene USA: California Deadwood Meadow, The Kern Plateau E. C. Twisselmann 17912 1971-7-14
GH: 00420904 Sidalcea ranunculacea Greene USA: California Frog Meadow Road, 2.1 mile north of Portuges... E. C. Twisselmann 3847 1957-7-23
Onagraceae GH: 01625210 Camissonia boothii desertorum (Munz) P. H. Raven USA: California Whitney Portal Road, 8.3 miles west of Lone ... E. C. Twisselmann 5638 1959-9-9
GH: 01625370 Camissonia campestris (Greene) P. H. Raven USA: California Poso Creek at the north end of Lynn Valley E. C. Twisselmann 5209 1959-5-21
GH: 01625372 Camissonia campestris (Greene) P. H. Raven USA: California South Fork crossing, 15.3 miles above the lu... E. C. Twisselmann 14161 1968-5-9
GH: 01625702 Camissonia hirtella (Greene) P. H. Raven USA: California Cherry Hill Road, 2.1 miles above Dry Creek E. C. Twisselmann 15913 1969-8-2
GH: 00367653 Camissonia integrifolia P. H. Raven USA: California Mouth of Kelso Canyon (at Highway 178). E. C. Twisselmann 7041 1962-5-7
GH: 00367654 Camissonia kernensis (Munz) P. H. Raven USA: California Northeast flank of Morris Peak E. C. Twisselmann 7140 1962-5-8
GH: 01674530 Circaea alpina pacifica (Ascherson & Magnus) P. H. Raven USA: California Ice Creek at the Johnsondale-Quaking Aspen R... E. C. Twisselmann 5493 1959-7-8
GH: 01674531 Circaea alpina pacifica (Ascherson & Magnus) P. H. Raven USA: California Crane Meadow E. C. Twisselmann 10139 1964-8-20
GH: 01673729 Clarkia unguiculata Lindley USA: California Parker Pass Road, 9.4 miles northeast of Cal... E. C. Twisselmann 12530 1966-6-25
GH: 00367797 Epilobium canum latifolium (Hooker) P. H. Raven USA: California On limestone at U.S.F.S. Limestone Campgroun... E. C. Twisselmann 19249 1972-9-22
GH: 00367797 Zauschneria californica J. Presl USA: California On limestone at U.S.F.S. Limestone Campgroun... E. C. Twisselmann 19249 1972-9-22
Orchidaceae GH: 02063797 Platanthera dilatata leucostachys (Lindley) Luer USA: California Manter Creek near its head below North Mante... E. C. Twisselmann 16780 1970-6-24
Orobanchaceae GH: 01879332 Castilleja stenantha A. Gray USA: California Limestone Cliffs, Kern Canyon E. C. Twisselmann 6555 1961-8-22
GH: 00365864 Cordylanthus rigidus brevibracteatus (A. Gray) Munz USA: California Head of Bitter Creek, Kern Plateau E. C. Twisselmann 7845 1962-9-19
GH: 00365865 Cordylanthus rigidus brevibracteatus (A. Gray) Munz USA: California Lynn Valley, 3.3 miles northwest of Glennvil... E. C. Twisselmann 6402 1961-7-27
GH: 00365866 Cordylanthus rigidus brevibracteatus (A. Gray) Munz USA: California Greenhorn Summit Road, 0.3 mile north of Tig... E. C. Twisselmann 6424 1961-7-27
Papaveraceae GH: 01856641 Argemone rotundata Rydberg USA: California Ridge w[m]outh of Bitter Creek E. C. Twisselmann 10009 1964-8-21
GH: 00381515 Eschscholzia lemmonii Greene USA: California Highway 41 on the east slope of Pyramid Hill... E. C. Twisselmann 6724 1962-3-28
GH: 00381516 Eschscholzia lemmonii Greene USA: California Antelope Plains: Devil's Water Canyon flood ... E. C. Twisselmann 6736 1962-3-30
GH: 00381517 Eschscholzia lemmonii Greene USA: California Shale Hills E. C. Twisselmann 6733 1962-3-30
GH: 00381518 Eschscholzia lemmonii Greene USA: California Low hills on the south side of the mouth of ... E. C. Twisselmann 6748 1962-4-1
GH: 00381519 Eschscholzia lemmonii Greene USA: California Davidson Hills just east of Grant's Lake E. C. Twisselmann 6750 1962-4-2
GH: 00381520 Eschscholzia lemmonii Greene USA: California Hills at the summit of Palo Prieta Canyon E. C. Twisselmann 6702 1962-3-18
GH: 00381521 Eschscholzia lemmonii Greene USA: California Palo Prieta Canyon, 3.5 miles south of Chola... E. C. Twisselmann 6713 1962-3-26
GH: 00381522 Eschscholzia lemmonii Greene USA: California Tejon Hills, about 4 miles northwest of the ... E. C. Twisselmann 6868 1962-4-9
GH: 00381556 Eschscholzia minutiflora S. Watson USA: California Mouth of the Red Rock Canyon E. C. Twisselmann 6933 1962-4-11
GH: 00381557 Eschscholzia minutiflora S. Watson USA: California Walker Pass Highway, 9.4 miles east of Onyx E. C. Twisselmann 7051 1962-5-7
GH: 00381558 Eschscholzia minutiflora S. Watson USA: California Grapevine Canyon, southern Sierra Nevada E. C. Twisselmann 7115 1962-5-8
GH: 00381559 Eschscholzia minutiflora S. Watson USA: California Ridgecrest Road, dry wash 6.8 miles north of... E. C. Twisselmann 6788 1962-4-10
GH: 00381560 Eschscholzia minutiflora S. Watson USA: California Plain northeast of Soledad Mountain E. C. Twisselmann 6861 1962-4-10
GH: 00295018 Hesperomecon linearis (Benthem) Greene USA: California E. C. Twisselmann 6097 1961-5-4
GH: 00295019 Hesperomecon linearis (Benthem) Greene USA: California E. C. Twisselmann 6711 1962-3-26
GH: 00295020 Hesperomecon linearis (Benthem) Greene USA: California E. C. Twisselmann 6033 1961-4-6
GH: 00295018 Meconella linearis (Bentham) A. Nelson & J. F. Macbride USA: California E. C. Twisselmann 6097 1961-5-4
GH: 00295020 Meconella linearis (Bentham) A. Nelson & J. F. Macbride USA: California E. C. Twisselmann 6033 1961-4-6
Plantaginaceae GH: 02212541 Callitriche palustris Linnaeus USA: California [data not captured] E. C. Twisselmann 13849 1967-9-21
GH: 01998334 Collinsia childii Parry USA: California [data not captured] E. C. Twisselmann 14309 1968-6-1
GH: 01998333 Collinsia childii Parry USA: California [data not captured] E. C. Twisselmann 3703 1957-6-21
GH: 01998332 Collinsia childii Parry USA: California [data not captured] E. C. Twisselmann 13419 1967-6-26
GH: 01998516 Collinsia heterophylla Graham USA: California [data not captured] E. C. Twisselmann 10992 1965-6-4
GH: 01999014 Collinsia tinctoria Hartweg ex Bentham USA: California [data not captured] E. C. Twisselmann 7559 1962-7-20
GH: 01999096 Collinsia torreyi wrightii (S. Watson) I. M. Johnston USA: California [data not captured] E. C. Twisselmann 14465 1968-6-26
GH: 01999095 Collinsia torreyi wrightii (S. Watson) I. M. Johnston USA: California [data not captured] E. C. Twisselmann 16821 1970-6-26
GH: 01804918 Veronica americana Schweinitz ex Bentham USA: California [data not captured] E. C. Twisselmann 18046 1971-7-14
GH: 01805962 Veronica peregrina Linnaeus USA: California [data not captured] E. C. Twisselmann 7525 1962-7-20
GH: 01811920 Veronica serpyllifolia humifusa (Dickson) Syme USA: California [data not captured] E. C. Twisselmann 17934 1971-7-14
Poaceae GH: 00360119 Koeleria cristata Persoon USA: California Antelope Plains, 9 miles sw. of Blackwell's ... E. C. Twisselmann 1858 1955-4-14
GH: 00360119 Koeleria phleoides (Villars) Persoon USA: California Antelope Plains, 9 miles sw. of Blackwell's ... E. C. Twisselmann 1858 1955-4-14
Polygonaceae GH: 01717609 Chorizanthe membranacea Bentham USA: California Main road, 0.8 mile above the lumber mill E. C. Twisselmann 14122 1968-5-9
GH: 00403061 Eriogonum covilleanum Eastwood USA: California Panoche Road, 3 miles below Idria E. C. Twisselmann 13350 1967-6-12
GH: 00403062 Eriogonum covilleanum Eastwood USA: California Panoche Road, 3 miles below Idria E. C. Twisselmann 13350 1967-6-12
GH: 00403063 Eriogonum covilleanum Eastwood USA: California Cedar Canyon: 2 miles south of Bitterwater R... E. C. Twisselmann 1207 1954-5-7
GH: 00036314 Eriogonum douglasii twisselmannii J. T. Howell USA: California The Needles, alt. 8150 feet E. C. Twisselmann 7585 1962-7-20
GH: 00364213 Eriogonum gossypinum Curran USA: California Bluffs across Kern River from Hart park (sam... E. C. Twisselmann 13307 1967-6-1
GH: 01986431 Eriogonum ordii S. Watson USA: California [data not captured] E. C. Twisselmann 10864 1965-5-27
GH: 00036314 Eriogonum twisselmannii (J. T. Howell) Reveal USA: California The Needles, alt. 8150 feet E. C. Twisselmann 7585 1962-7-20
GH: 00364600 Eriogonum vestitum J. T. Howell USA: California Panoche Road, 3.6 miles below Idria E. C. Twisselmann 13349 1967-6-12
GH: 02363724 Persicaria lapathifolia (Linnaeus) Delarbre USA: California [data not captured] E. C. Twisselmann 19271 1972-9-22
GH: 02362170 Persicaria maculosa Gray USA: California [data not captured] E. C. Twisselmann 10020 1964-8-21
GH: 02360431 Polygonum douglasii Greene USA: California [data not captured] E. C. Twisselmann 16893 1970-6-26
GH: 02007252 Polygonum polygaloides kelloggii (Greene) J. C. Hickman USA: California [data not captured] E. C. Twisselmann 9907 1964-7-24
GH: 02007756 Polygonum sawatchense Small USA: California [data not captured] E. C. Twisselmann 11509A 1965-8-19
Portulacaceae GH: 01858267 Cistanthe monandra (Nuttall) Hershkovitz USA: California Cherry Hill Road, 0.7 mile above the highway E. C. Twisselmann 13272 1967-5-31
GH: 01858341 Cistanthe umbellata (Torrey) Hershkovitz USA: California Mineral King: terminus of Timber Gap Trail E. C. Twisselmann 14289 1968-6-1
GH: 00353395 Montia perfoliata depressa (A. Gray) Jepson USA: California The Kern Plateau, Long Meadow E. C. Twisselmann 16844 1970-6-26
Ranunculaceae GH: 01709725 Aquilegia formosa pauciflora (Greene) Boothman USA: California Paloma Meadow E. C. Twisselmann 13872 1967-9-21
GH: 00369609 Clematis ligusticifolia Nuttall USA: California Fork of Chimney Creek at the northwest end o... E. C. Twisselmann 10336 1964-10-21
GH: 00369756 Delphinium sp. USA: California West slope of the Needles E. C. Twisselmann 7592 1962-7-20
Rosaceae GH: 00346146 Rosa woodsii ultramontana (S. Watson) Jepson USA: California The Kern Plateau. Fish Creek at the mouth of... E. C. Twisselmann 13937 1967-9-21
Rubiaceae GH: 00385825 Galium bolanderi A. Gray USA: California Parker Pass, southern Tulare County E. C. Twisselmann 12522 1966-6-25
GH: 00385826 Galium bolanderi A. Gray USA: California above Cedar Creek Public Camp E. C. Twisselmann 9785 1964-7-23
GH: 00385970 Galium hallii Munz & I. M. Johnston USA: California east of Bodfish Gap (northwest end of Piute ... E. C. Twisselmann 10948 1965-6-3
GH: 00385951 Galium matthewsii A. Gray USA: California Head of Short Canyon E. C. Twisselmann 7125 1962-5-8
GH: 00417059 Galium trifidum subbiflorum (Wiegand) Puff (Wiegand) Puff USA: California Salmon Creek, Kern Plateau, southern Tulare ... E. C. Twisselmann 7542 1962-7-20
GH: 00417059 Galium trifidum subbiflorum Wiegand USA: California Salmon Creek, Kern Plateau, southern Tulare ... E. C. Twisselmann 7542 1962-7-20
Salicaceae GH: 00382393 Salix bonplandiana Kunth USA: California Weldon Road, 1 mile southeast of Kernville E. C. Twisselmann 14080 1968-4-24
GH: 00382394 Salix bonplandiana Kunth USA: California Grapevine Canyon (west of Indian Wells Valle... E. C. Twisselmann 6526 1961-8-22
GH: 00382683 Salix exigua Nuttall USA: California South Fork of Kern River at the north end of... E. C. Twisselmann 13486 1967-6-27
GH: 00382718 Salix geyeriana Andersson USA: California Slong Salmon Creek in Horse Meadow E. C. Twisselmann 12193 1966-5-11
GH: 00382719 Salix geyeriana Andersson USA: California Beach Meadow, near the ranger's cabin E. C. Twisselmann 14485 1968-6-26
GH: 00383460 Salix lasiolepis Bentham USA: California Cherry Hill Road, 0.5 mile west of Poison Me... E. C. Twisselmann 12511 1966-6-24
GH: 00383931 Salix lemmonii Bebb USA: California Frog Meadow, southern Tulare County E. C. Twisselmann 14341 1968-6-25
GH: 00383932 Salix lemmonii Bebb USA: California Crane Meadow E. C. Twisselmann 10140 1964-8-20
GH: 00384212 Salix lutea Nuttall USA: California The Kern Plateau. Head of the south fork of ... E. C. Twisselmann 16722 1970-6-24
GH: 00384213 Salix lutea Nuttall USA: California The Kern Plateau. Fish Creek at Fish Meadow E. C. Twisselmann 12715 1966-8-3
GH: 00384468 Salix scouleriana Barratt ex Hooker USA: California Cienega 0.9 mile north of Tiger Flat E. C. Twisselmann 6408 1961-7-27
Saxifragaceae GH: 00380486 Ribes menziesii ixoderme Quick USA: California East slope of Blue Mountain E. C. Twisselmann 9417 1964-5-15
GH: 00380623 Ribes nevadense Kellogg USA: California East slope of Speas Ridge, 2.3 miles south o... E. C. Twisselmann 7785 1962-9-18
GH: 00380624 Ribes nevadense Kellogg USA: California Whistle Creek, east of Poison Meadow E. C. Twisselmann 13580 1967-8-29
GH: 00380775 Ribes roezlii Regel USA: California Wistle Creek, east of Poison Meadow E. C. Twisselmann 13579 1967-8-29
GH: 00381104 Saxifraga californica Greene USA: California Eugene Grade E. C. Twisselmann 6087 1961-5-4
Scrophulariaceae GH: 01842698 Erythranthe primuloides (Bentham) G. L. Nesom & N. S. Fraga USA: California [data not captured] E. C. Twisselmann 18049B 1971-7-14
GH: 01842697 Erythranthe primuloides (Bentham) G. L. Nesom & N. S. Fraga USA: California [data not captured] E. C. Twisselmann 12693 1966-8-3
GH: 00367328 Erythranthe tilingii (Regel) G. L. Nesom USA: California Stringer above the Brown Cow Camp on the sou... E. C. Twisselmann 17963 1971-7-15
GH: 00367328 Mimulus tilingii Regel USA: California Stringer above the Brown Cow Camp on the sou... E. C. Twisselmann 17963 1971-7-15
Ustilaginaceae GH: 00353395 Microbotryum sp. USA: California The Kern Plateau, Long Meadow E. C. Twisselmann 16844 1970-6-26
