Search Results — 366 specimen records retrieved (165 records with coordinates)
Results for search: County=SHASTA; Source=All; Collector=Howell;   

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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC102706  Populus tremuloides John Thomas Howell 1960-8-22 36375 Shasta Anklin Meadows 1889 Comment
  CAS-BOT-BC102821  Salix boothii John Thomas Howell 1960-8-23 36449 Shasta Lassen Loop above Little Hot Springs Valley 2407 Comment
  CAS-BOT-BC102825  Salix boothii John Thomas Howell 1960-8-23 36448 Shasta Lassen Loop above Little Hot Springs Valley 2407 Comment
  CAS-BOT-BC102968  Populus trichocarpa John Thomas Howell 1960-8-22 36356 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC106890  Salix jepsonii John Thomas Howell 1961-6-20 36564 Shasta Lassen Highway east of Diamond Peak Comment
  CAS-BOT-BC108751  Ribes cereum John Thomas Howell 1964-5-13 40708 Shasta Lava flow just north of Hat Creek P.O. Comment
  CAS-BOT-BC111083  Scirpus microcarpus John Thomas Howell 1960-8-22 36333 Shasta Manzanita Lake, Lassen Volcanic National Park 1783 Comment
  CAS-BOT-BC113423  Eleocharis bella John Thomas Howell 1960-8-22 36330 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC113590  Eleocharis acicularis John Thomas Howell 1960-8-23 36435 Shasta Emerald Lake 2468 Comment
  CAS-BOT-BC115876  Carex subfusca John Thomas Howell 1960-8-23 36456 Shasta Lassen Loop east of Diamond Peak 2225 Comment
  CAS-BOT-BC115877  Carex subfusca John Thomas Howell 1960-8-23 36451 Shasta Lassen Loop east of Diamond Peak 2255 Comment
  CAS-BOT-BC118152  Carex rossii John Thomas Howell 1961-6-20 36554 Shasta Dersch Meadows 1981 Comment
  CAS-BOT-BC118610  Carex raynoldsii John Thomas Howell 1961-6-20 36557 Shasta Dersch Meadows, Lassen Volcanic National Park. 1981 Comment
  CAS-BOT-BC124862  Salix lemmonii John Thomas Howell 1961-6-20 36561 Shasta Dersch Meadows 1981 Comment
  CAS-BOT-BC124863  Salix lemmonii John Thomas Howell 1961-6-20 36562 Shasta Dersch Meadows 1981 Comment
  CAS-BOT-BC124865  Salix lemmonii John Thomas Howell 1960-8-22 36373 Shasta Anklin Meadows 1889 Comment
  CAS-BOT-BC124867  Salix lemmonii John Thomas Howell 1960-8-22 36397 Shasta Hat Lake 1950 Comment
  CAS-BOT-BC124868  Salix lemmonii John Thomas Howell 1960-8-22 36321 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC125409  Salix lasiandra var. lasiandra John Thomas Howell 1961-6-19 36532 Shasta Lily Pond near Reflection Lake 1798 Comment
  CAS-BOT-BC125410  Salix lasiandra var. lasiandra John Thomas Howell 1961-6-19 36531 Shasta Lily Pond near Reflection Lake 1798 Comment
  CAS-BOT-BC125414  Salix lasiandra var. lasiandra John Thomas Howell 1960-8-22 36322 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC126127  Salix scouleriana John Thomas Howell 1960-8-22 36355 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC127403  Agrostis elliottiana John Thomas Howell 1955-6-14 30426 Shasta East of Whiskeytown. Comment
  CAS-BOT-BC129033  Salix scouleriana John Thomas Howell 1961-6-20 36540 Shasta Lassen Highway at east edge of Chaos Jumbles - Lassen Volcanic National Park Comment
  CAS-BOT-BC132743  Salix arctica John Thomas Howell 1960-8-23 36434 Shasta Emerald Lake 2468 Comment
  CAS-BOT-BC137982  Alopecurus pratensis John Thomas Howell 1952-6-13 28328 Shasta 2 miles north of Castle Crags. Comment
  CAS-BOT-BC138700  Agrostis scabra John Thomas Howell 1939-8-12 15291 Shasta Sulfphur Works, Mount Lassen. 2133 Comment
  CAS-BOT-BC138702  Agrostis scabra John Thomas Howell 1960-8-22 36338 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  CAS-BOT-BC138861  Agrostis microphylla John Thomas Howell 1955-6-14 30427 Shasta East of Whiskeytown. Comment
  CAS-BOT-BC139353  Agrostis idahoensis John Thomas Howell 1960-8-22 36390 Shasta Lassen Volcanic National Park. Hat Lake. 1950 Comment
  CAS-BOT-BC139581  Agrostis gigantea John Thomas Howell 1960-8-22 36359 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  CAS-BOT-BC139582  Agrostis gigantea John Thomas Howell 1960-8-22 36337 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  CAS-BOT-BC141624  Chamaebatiaria millefolium John Thomas Howell 1960-8-22 36369 Shasta Lava flow just east of Chaos Jumbles - Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC147884  Purshia tridentata var. tridentata John Thomas Howell 1960-8-23 36430 Shasta Chaos Jumbles Comment
  CAS-BOT-BC155223  Bromus hordeaceus John Thomas Howell 1954-4-26 s.n. Shasta 5 miles east of Buckthorn Summit on road to Redding. Comment
  CAS-BOT-BC158193  Prunus emarginata John Thomas Howell 1961-6-20 36537 Shasta On Chaos Crags Trail near Manzanita Lake 1889 Comment
  CAS-BOT-BC158194  Prunus emarginata John Thomas Howell 1960-8-22 36346 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC16671  Barbarea orthoceras John Thomas Howell 1961-6-20 36563 Shasta Lassen Volcanic National Park. Dersch Meadows. 1981 Comment
  CAS-BOT-BC171423  Alnus incana subsp. tenuifolia John Thomas Howell 1960-8-19 36114 Shasta Brokeoff Mt. Trail 2286 Comment
  CAS-BOT-BC175045  Silene suksdorfii John Thomas Howell 1960-8-19 36171 Shasta Summit ridge, Brokoff Mt. 2773 Comment
  CAS-BOT-BC17956  Carex angustata John Thomas Howell 1960-8-22 36393 Shasta Lassen Volcanic National Park. Hat Lake. 1950 Comment
  CAS-BOT-BC181296  Silene invisa John Thomas Howell 1969-8-5 45878 Shasta Dersch Meadows - Lassen Volcanic National Park Comment
  CAS-BOT-BC184581  Vulpia microstachys var. pauciflora John Thomas Howell 1960-8-22 36348 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC19643  Carex brainerdii John Thomas Howell 1960-8-19 36174 Shasta Lassen Volcanic National Park. Summit Ridge, Brokeoff Mountain. 2773 Comment
  CAS-BOT-BC19645  Carex brainerdii John Thomas Howell 1960-8-22 36340 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  CAS-BOT-BC207603  Cercis occidentalis John Thomas Howell 1927-4-6 2308 Shasta Near Whiskeytown Comment
  CAS-BOT-BC210855  Achnatherum occidentale subsp. californicum John Thomas Howell 1960-8-22 36354 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC212584  Ribes montigenum John Thomas Howell 1961-6-20 36559 Shasta Dersch Meadows 1981 Comment
  CAS-BOT-BC216902  Achnatherum occidentale John Thomas Howell 1960-8-19 36182 Shasta Summit ridge, Brokeoff Mountain 2773 Comment
  CAS-BOT-BC216903  Achnatherum occidentale John Thomas Howell 1960-8-22 36339 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC223571  Fraxinus latifolia John Thomas Howell 1934-7-4 12417 Shasta 3 miles sw. of Fall River Mills Comment
  CAS-BOT-BC223572  Fraxinus latifolia John Thomas Howell 1934-7-4 12418 Shasta 3 miles sw. of Fall River Mills Comment
  CAS-BOT-BC225202  Salvia sonomensis John Thomas Howell 1927-4-9 2317 Shasta Bully Hill Comment
  CAS-BOT-BC225203  Salvia sonomensis John Thomas Howell 1955-6-14 30428 Shasta East of Whiskeytown Comment
  CAS-BOT-BC238869  Sambucus nigra subsp. caerulea John Thomas Howell 1960-8-22 36363 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC239312  Penstemon newberryi var. berryi John Thomas Howell 1960-8-22 36370 Shasta Lassen Volcanic National Park. Just east of Chaos Jumbles 1828 Comment
  CAS-BOT-BC240029  Scribneria bolanderi John Thomas Howell 1954-4-26 29178 Shasta Just west of Tower House Comment
  CAS-BOT-BC240030  Scribneria bolanderi John Thomas Howell 1955-6-14 30425 Shasta East of Whiskeytown Comment
  CAS-BOT-BC243733  Castilleja applegatei var. pinetorum John Thomas Howell 1960-8-19 36181 Shasta Summit ridge, Brokeoff Mt., Lassen Volcanic National Park 2773 Comment
  CAS-BOT-BC253560  Phleum alpinum John Thomas Howell 1960-8-23 36444 Shasta Lassen Loop above Little Hot Springs Valley, Lassen Volcanic National Park 2407 Comment
  CAS-BOT-BC260880  Phleum pratense John Thomas Howell 1960-8-22 36360 Shasta Manzanita Lake, Lassen Volcanic National Park 1783 Comment
  CAS-BOT-BC262277  Eriogonum ursinum John Thomas Howell 1960-8-19 36179 Shasta Lassen Volcanic National Park. Summit ridge, Brokeoff Mt. 2773 Comment
  CAS-BOT-BC264074  Viola adunca John Thomas Howell 1961-6-20 36555 Shasta Lassen Volcanic National Park. Dersch Meadows 1981 Comment
  CAS-BOT-BC267222  Potamogeton praelongus John Thomas Howell 1960-8-22 36324 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC273385  Calycadenia fremontii John Thomas Howell 1969-8-4 45875 Shasta About 9 miles northeast of Cottonwood Comment
  CAS-BOT-BC275157  Muhlenbergia richardsonis John Thomas Howell 1960-8-22 36404 Shasta Dersch Meadows 1981 Comment
  CAS-BOT-BC280778  Holcus lanatus John Thomas Howell 1960-8-23 36428 Shasta Lassen Volcanic National Park. Reflection Lake 1792 Comment
  CAS-BOT-BC283866  Glyceria borealis John Thomas Howell 1960-8-22 36352 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC28464  Carex lenticularis var. lipocarpa John Thomas Howell 1960-8-22 36394 Shasta Hat Lake 1950 Comment
  CAS-BOT-BC286673  Ericameria bloomeri John Thomas Howell 1960-8-22 36344 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC292712  Cirsium scariosum John Thomas Howell 1960-8-21 36317 Shasta Lassen Loop east of Diamond Peak, Lassen Volcanic National Park 2225 Comment
  CAS-BOT-BC292713  Cirsium scariosum John Thomas Howell 1960-8-21 36317 Shasta Lassen Loop east of Diamond Peak, Lassen Volcanic National Park 2225 Comment
  CAS-BOT-BC299444  Ericameria nauseosa var. speciosa John Thomas Howell 1960-8-22 36343 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC313435  Hemizonella minima John Thomas Howell 1961-6-20 36543 Shasta Lassen Highway 1 mi. nw. of Lost Creek Bridge, Lassen Volcanic National Park 1798 Comment
  CAS-BOT-BC333010  Senecio scorzonella John Thomas Howell 1960-8-21 36316 Shasta Lassen Loop east of Diamond Peak, Lassen Volcanic National Park 2225 Comment
  CAS-BOT-BC342049  Lessingia virgata John Thomas Howell 1969-8-4 45874 Shasta About 9 miles northeast of Cottonwood Comment
  CAS-BOT-BC34442  Carex deflexa var. boottii John Thomas Howell 1961-6-20 36553 Shasta Lassen Volcanic National Park. Dersch Meadows. 1981 Comment
  CAS-BOT-BC36230  Chrysolepis sempervirens John Thomas Howell 1960-8-22 36347 Shasta Manzanita Lake, Lassen Volcanic National Park 1783 Comment
  CAS-BOT-BC36231  Chrysolepis sempervirens John Thomas Howell 1960-8-22 36372 Shasta Just east of Chaos Jumbles, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC37230  Cardamine bellidifolia John Thomas Howell 1969-8-6 45881 Shasta Lassen Volcanic National Park. Emerald Lake. Comment
  CAS-BOT-BC386972  Silene douglasii John Thomas Howell 1960-8-19 36172 Shasta Summit ridge Brokeoff Mt. 2773 Comment
  CAS-BOT-BC410205  Hypericum concinnum John Thomas Howell 1955-6-14 30434 Shasta east of Whiskeytown Comment
  CAS-BOT-BC413634  Persicaria amphibia John Thomas Howell 1960-8-22 36328 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC41963  Draba albertina John Thomas Howell 1961-6-20 36560 Shasta Lassen Volcanic National Park. Dersch Meadows. 1981 Comment
  CAS-BOT-BC41964  Draba albertina John Thomas Howell 1969-8-5 45877 Shasta Lassen Volcanic National Park. Dersch Meadows. Comment
  CAS-BOT-BC419912  Polygonum polygaloides subsp. kelloggii John Thomas Howell 1960-8-23 6440 Shasta Lassen Volcanic National Park. Lassen Loop above Little Hot Springs Valley 2407 Comment
  CAS-BOT-BC444186  Lewisia nevadensis John Thomas Howell 1961-6-20 36556 Shasta Lassen Volcanic National Park. Dersch Meadows 1981 Comment
  CAS-BOT-BC45467  Arctostaphylos nevadensis John Thomas Howell 1960-8-22 36385 Shasta Anklin Meadows. 1889 Comment
  CAS-BOT-BC45470  Arctostaphylos nevadensis John Thomas Howell 1959-9-23 34877 Shasta Lassen Park Boundary on Juniper Lake Rd. 1981 Comment
  CAS-BOT-BC46546  Arctostaphylos patula John Thomas Howell 1960-8-22 36345 Shasta Manzanita Lake. 1783 Comment
  CAS-BOT-BC47003  Arctostaphylos viscida subsp. viscida John Thomas Howell 1927-4-6 2309 Shasta Near Whiskeytown. Comment
  CAS-BOT-BC52102  Ceanothus prostratus John Thomas Howell 1960-8-22 36413 Shasta 4.5 miles NE. of Manzanita Lake Comment
  CAS-BOT-BC56343  Kalmia microphylla subsp. microphylla John Thomas Howell 1960-8-23 36432 Shasta Emerald Lake 2468 Comment
  CAS-BOT-BC56967  Equisetum arvense John Thomas Howell 1960-8-22 36391 Shasta Hat Lake 1950 Comment
  CAS-BOT-BC62750  Quercus garryana var. breweri John Thomas Howell 1969-8-7 45887 Shasta Near Shingletown Comment
  CAS-BOT-BC63906  Sedum spathulifolium John Thomas Howell; Alice Eastwood 1934-4-21 1811 Shasta Between Lamoine and Delta. Comment
  CAS-BOT-BC64511  Styrax redivivus John Thomas Howell 1954-4-26 29185 Shasta 3 mi. w. of Whiskeytown. Comment
  CAS-BOT-BC73181  Pinus jeffreyi John Thomas Howell 1960-8-22 s.n. Shasta Lassen Volcanic National Park, Manzanita Lake Comment
  CAS-BOT-BC74672  Rorippa curvisiliqua John Thomas Howell 1960-8-22 36334 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  CAS-BOT-BC79076  Pinus ponderosa John Thomas Howell 1960-8-22 36412 Shasta 4.5 miles ne. of Manzanita Lake Comment
  CAS-BOT-BC85147  Arnica nevadensis John Thomas Howell 1960-8-19 36173 Shasta Lassen Volcanic National Park, Summit ridge, Brokeoff Mt. 2773 Comment
  CAS-BOT-BC87810  Streptanthus tortuosus John Thomas Howell 1960-8-23 36447 Shasta Lassen Volcanic National Park. Lassen Loop above Little Hot Springs Valley. 2407 Comment
  CAS-BOT-BC98470  Symphyotrichum spathulatum John Thomas Howell 1934-7-4 12412 Shasta 3 miles sw. of Fall River Mills Comment
  JEPS28116  Arnica longifolia J. Thomas Howell 1960-8-19 36187 Shasta Brokeoff Mt. (summit ridge) Brokeoff Mt. 2743 Comment
  JEPS29541  Galium grayanum John Thomas Howell 1960-8-19 36178 Shasta summit ridge Lassen Volcanic National Park, Brokeoff Mountain 2743 Comment
  JEPS29548  Ericameria bloomeri John Thomas Howell 1960-8-22 36344 Shasta Manzanita Lake Lassen Volcanic National Park, Manzanita Lake 1783 Comment
  JEPS29554  Castilleja applegatei subsp. pinetorum John Thomas Howell 1960-8-19 36181 Shasta Brokeoff Mountain Lassen Volcanic National Park, Brokeoff Mountain 2743 Comment
  JEPS29555  Castilleja arachnoidea John Thomas Howell 1960-8-19 36169 Shasta Brokeoff Mountain, summit ridge Lassen Volcanic National Park, Brokeoff Mountain 2743 Comment
  JEPS29563  Ericameria parryi var. latior John Thomas Howell 1960-8-22 36414 Shasta 1/2 mi w of Park line (on road to Viola, near Lassen Volcanic National Park); Lassen Volcanic National Park Comment
  JEPS29569  Ageratina occidentalis John Thomas Howell 1960-8-23 36454 Shasta e of Diamond Peak; Lassen Loop 2225 Comment
  JEPS29570  Hemizonella minima John Thomas Howell 1961-6-20 36543 Shasta Lassen Hwy 1 mi nw Lost Creek Bridge; Lassen Volcanic National Park 1798 Comment
  JEPS29577  Cirsium scariosum John Thomas Howell 1960-8-19 36185 Shasta summit ridge, Brokeoff Mountain; Lassen Volcanic National Park, Brokeoff Mountain 2743 Comment
  JEPS53177  Boechera breweri John Thomas Howell 1927-4-7 2311 Shasta above McCloud River (on Potter Creek, w slope of Horse Mt.); Horse Mt., Potter Creek 304 Comment
  JEPS58897  Castilleja arachnoidea John Thomas Howell 1960-8-19 36169 Shasta Brokeoff Mountain, summit ridge Lassen Volcanic National Park, Brokeoff Mountain 2743 Comment
  JEPS62609  Cordylanthus pilosus subsp. hansenii John Thomas Howell 1969-8-4 45876 Shasta about 9 mi ne Cottonwood Comment
  JEPS62628  Calycadenia fremontii J. Thomas Howell 1969-8-4 45875 Shasta about 9 mi ne of Cottonwood Comment
  JEPS9097  Plantago coronopus John Thomas Howell 1954-4-26 29179 Shasta just w Tower House Comment
  POM196454  Salvia sonomensis J. T. Howell 1927-4-9 2317 Shasta Bully Hill Comment
  RSA121045  Scribneria bolanderi J. T. Howell 1954-4-26 29178 Shasta Just west of Tower House. Comment
  RSA201258  Chrysothamnus parryi subsp. latior J. T. Howell 1960-8-22 36414 Shasta 1/2 mile W of park line on road Viola. Comment
  RSA201263  Achnatherum occidentale subsp. occidentale J. T. Howell 36339 Shasta Manzanita Lake 1784 Comment
  RSA201281  Muhlenbergia filiformis J. T. Howell 1960-8-22 36401 Shasta Dersch Meadows. 1982 Comment
  RSA201283B  Cornus nuttallii J. T. Howell 1960-8-22 36418 Shasta 5.5 miles west of Park line on road to Viola. Comment
  RSA201303  Chamaebatiaria millefolium J. T. Howell 1960-8-22 36369 Shasta Lava flow just E f Chaos Jumbles 1829 Comment
  RSA201333  Salix boothii J. T. Howell 1960-8-21 36319 Shasta Kings Creek Meadow. 2210 Comment
  RSA201336  Chamaebatiaria millefolium J. T. Howell 1960-8-22 36369 Shasta Lava flow just E f Chaos Jumbles 1829 Comment
  RSA201337A  Cornus nuttallii J. T. Howell 1960-8-22 36418 Shasta 5.5 miles west of Park line on road to Viola. Comment
  RSA201342  Holodiscus microphyllus var. glabrescens J. T. Howell 1960-8-19 36198 Shasta Summit ridge, Brokeoff Mtn. 2805 Comment
  RSA201351  Agrostis scabra J. T. Howell 1960-8-22 36338 Shasta Manzanita Lake. [Lassen Volcanic National Park] Alt. 5850 1784 Comment
  RSA201369  Chrysolepis sempervirens J. T. Howell 1960-8-22 36372 Shasta Just east of Chaos Jumbles. 1829 Comment
  RSA201371  Salix boothii J. T. Howell 1960-8-21 36319 Shasta Kings Creek Meadow. 2210 Comment
  RSA2596  Quercus douglasii J. T. Howell 1928-8-31 1187 Shasta 10 miles east of Burney Comment
  SD71015  Salix lemmonii John Thomas Howell 1960-8-21 36320 Shasta Kings Creek Meadow, Lassen Volcanic National park 2210 Comment
  UC1026391  Scleranthus annuus subsp. annuus John Thomas Howell 1954-4-26 29182 Shasta just w Tower House Comment
  UC1026392  Juncus ambiguus John Thomas Howell 1954-4-26 29180 Shasta Just west of Tower House. Comment
  UC1042325  Phacelia egena John Thomas Howell 1954-4-26 29175 Shasta 5 mi e Buckthorn Summit Comment
  UC1042330  Plantago coronopus John Thomas Howell 1954-4-26 29179 Shasta just w Tower House Comment
  UC1042331  Allophyllum gilioides subsp. gilioides John Thomas Howell 1954-4-26 29176 Shasta 5 mi. e. Buckthorn Summit Comment
  UC618438  Juncus covillei John Thomas Howell 1937-7-20 13147 Shasta near French Gulch Comment
  UC634928  Staphylea bolanderi John Thomas Howell 1927-4-7 2314 Shasta vicinity Potter Creek; Canyon of McCloud River 304 Comment
  UC648291  Eryngium castrense John Thomas Howell 1934-6-16 12225 Shasta 3.5 mi. n.e. McArthur Comment
  UCD100611  Polygonum polygaloides subsp. kelloggii John Thomas Howell 1960-8-23 36440 Shasta Lassen Volcanic National Park. Lassen Loop above Little Hot Springs Valley. 2407 Comment
  UCD109972  Alnus incana subsp. tenuifolia John Thomas Howell 1960-8-22 36323 Shasta Lassen Volcanic National Park, Manzanita Lake. 1783 Comment
  UCD110719  Populus trichocarpa John Thomas Howell 1960-8-22 36356 Shasta Manzanita Lake. 1783 Comment
  UCD110745  Salix boothii John Thomas Howell 1960-8-23 36448 Shasta Lassen Loop above Little Hot Springs Valley. 2407 Comment
  UCD111094  Salix jepsonii John Thomas Howell 1960-8-21 36312 Shasta Lassen Loop east of Diamond Peak. 2225 Comment
  UCD111095  Salix jepsonii John Thomas Howell 1961-6-20 36564 Shasta Lassen Highway east of Diamond Peak. Comment
  UCD111562  Salix lasiandra var. lasiandra John Thomas Howell 1960-8-22 36322 Shasta Manzanita Lake. 1783 Comment
  UCD111563  Salix lasiandra var. lasiandra John Thomas Howell 1960-8-22 36396 Shasta Hat Lake. 1950 Comment
  UCD111774  Salix melanopsis John Thomas Howell 1960-8-22 36373 Shasta Anklin Meadows. 1889 Comment
  UCD111885  Salix scouleriana John Thomas Howell 1961-6-20 36540 Shasta Lassen Highway at east edge of Chaos Jumbles. Comment
  UCD112952  Chamaebatiaria millefolium John Thomas Howell 1960-8-22 36369 Shasta East of Chaos Jumbles. 1828 Comment
  UCD131538  Ericameria parryi var. latior John Thomas Howell 1960-8-22 36414 Shasta 0.5 mile west of park line on road to Viola. 1950 Comment
  UCD140786  Carex rossii John Thomas Howell 1961-6-19 36520 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  UCD141731  Juncus parryi John Thomas Howell 1960-8-22 36407 Shasta north of Summit Lake. 2042 Comment
  UCD50951  Achnatherum occidentale John Thomas Howell 1960-8-19 36182 Shasta Summit ridge Brokeoff Mt. 2743 Comment
  UCD55811  Alopecurus pratensis John Thomas Howell 1952-6-13 28328 Shasta 2 miles north of Castle Crags. Comment
  UCD61413  Elymus elymoides John Thomas Howell 1960-8-19 36176 Shasta Summit ridge, Brokeoff Mt. 2743 Comment
  UCD89628  Phleum pratense John Thomas Howell 1960-8-22 36360 Shasta Manzanita Lake. 1783 Comment
  UCD91199  Polypogon maritimus John Thomas Howell 1955-6-14 30431 Shasta East of Whiskeytown. Comment
  UCD91592  Poa wheeleri John Thomas Howell 1951-6-20 36542 Shasta Lassen Highway, 1 mile northwest of Lost Creek Bridge. 1798 Comment
  UCD92325  Puccinellia John Thomas Howell 1954-4-26 29177 Shasta West of Tower House, about 6 miles west of Whiskeytown. Comment
  UCD93284  Trisetum wolfii John Thomas Howell 1960-8-23 36445 Shasta Lassen Volcanic National Park. Lassen Loop above Little Hot Springs Valley. 2407 Comment
  UCD94544  Vulpia microstachys var. pauciflora John Thomas Howell 1961-6-19 36518 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  UCD99355  Persicaria amphibia John Thomas Howell 1960-8-22 36328 Shasta Manzanita Lake. 1783 Comment
  CAS-BOT-BC102824  Salix boothii John Thomas Howell 1960-8-21 36319 Shasta Kings Creek Meadow 2209 Comment
  CAS-BOT-BC102965  Populus trichocarpa John Thomas Howell 1960-8-22 36395 Shasta Hat Lake 1950 Comment
  CAS-BOT-BC106891  Salix jepsonii John Thomas Howell 1960-8-21 36312 Shasta Lassen Loop east of Diamond Peak 2225 Comment
  CAS-BOT-BC108752  Ribes cereum John Thomas Howell 1960-8-22 36399 Shasta Lassen Volcanic National Park. Hat Lake. 1950 Comment
  CAS-BOT-BC110762  Juncus mertensianus John Thomas Howell 1960-8-21 36314 Shasta Lassen Volcanic National Park. Lassen Loope east of Diamond Peak. 2225 Comment
  CAS-BOT-BC112426  Isolepis cernua John Thomas Howell 1955-6-14 30420 Shasta Mineral spring 0.8 mile W of Tower House. 396 Comment
  CAS-BOT-BC112768  Eleocharis macrostachya John Thomas Howell 1960-8-23 36427 Shasta Reflection Lake Comment
  CAS-BOT-BC115405  Carex utriculata John Thomas Howell 1960-8-22 36331 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC115427  Carex utriculata John Thomas Howell 1934-7-11 12567 Shasta Fall River Mills. Comment
  CAS-BOT-BC115878  Carex subfusca John Thomas Howell 1934-7-5 12424 Shasta Burney Comment
  CAS-BOT-BC115879  Carex subfusca John Thomas Howell 1960-8-21 36313 A Shasta Lassen Loop E of Diamond Peak 2225 Comment
  CAS-BOT-BC115880  Carex subfusca John Thomas Howell 1960-8-21 36313 Shasta Lassen Loop E of Diamond Peak 2225 Comment
  CAS-BOT-BC115881  Carex subfusca John Thomas Howell 1952-6-13 28326 Shasta Marshy ground, 2 mi N of Castle Crags. Comment
  CAS-BOT-BC115882  Carex subfusca John Thomas Howell 1932-7-9 10865 Shasta Burney Spring. South of Burney. 1432 Comment
  CAS-BOT-BC116992  Carex straminiformis John Thomas Howell 1960-8-23 36452 Shasta Lassen Loop N of Diamond Peak. 2255 Comment
  CAS-BOT-BC117752  Carex simulata John Thomas Howell 1934-7-11 12565 Shasta Fall River Mills. Comment
  CAS-BOT-BC118150  Carex rossii John Thomas Howell 1960-8-22 36408 Shasta Pond north of Summit Lake 2042 Comment
  CAS-BOT-BC118151  Carex rossii John Thomas Howell 1961-6-19 36520 Shasta Dry slope, Manzanita Lake 1783 Comment
  CAS-BOT-BC119893  Carex nebrascensis John Thomas Howell 1934-7-11 12566 Shasta Fall River Mills Comment
  CAS-BOT-BC125412  Salix lasiandra var. lasiandra John Thomas Howell 1960-8-22 36396 Shasta Hat Lake 1950 Comment
  CAS-BOT-BC125415  Salix lasiandra var. lasiandra John Thomas Howell 1960-8-22 36374 Shasta Anklin Meadows 1889 Comment
  CAS-BOT-BC138358  Aira caryophyllea var. caryophyllea John Thomas Howell 1954-4-26 s.n. Shasta Tower House, W of Redding Comment
  CAS-BOT-BC14297  Boechera platysperma John Thomas Howell 1960-8-22 36384 A Shasta Lassen Volcanic National Park. Anklin Meadows. 1889 Comment
  CAS-BOT-BC148762  Bromus carinatus var. marginatus John Thomas Howell 1960-8-23 36459 Shasta Lassen Volcanic National Park. Lassen Loop east of Diamond Peak. 2225 Comment
  CAS-BOT-BC150107  Holodiscus discolor var. discolor John Thomas Howell 1960-8-22 36342 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC151260  Diplacus torreyi John Thomas Howell; Alice Eastwood 1940-6-10 7889 Shasta Montgomery Creek Comment
  CAS-BOT-BC153296  Diplacus kelloggii John Thomas Howell 1927-4-4 2298 Shasta 10 miles ne. of Redding Comment
  CAS-BOT-BC153639  Diplacus jepsonii John Thomas Howell 1969-8-6 45882 Shasta Near Cold Boiling Lake Comment
  CAS-BOT-BC153640  Diplacus jepsonii John Thomas Howell 1969-8-6 45882 Shasta Near Cold Boiling Lake Comment
  CAS-BOT-BC159325  Drymocallis lactea var. lactea John Thomas Howell 1960-8-22 36389 Shasta Hot Lake - Lassen Volcanic National Park 1950 Comment
  CAS-BOT-BC161410  Bromus tectorum John Thomas Howell 1961-6-19 36519 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  CAS-BOT-BC161411  Bromus tectorum John Thomas Howell 1960-8-22 36349 Shasta Lassen Volcanic National Park. Manzanita Lake. 1783 Comment
  CAS-BOT-BC161522  Bromus tectorum John Thomas Howell s.n. Shasta 5 miles east of Buckthorn Summit on road to Redding. Comment
  CAS-BOT-BC171422  Alnus incana subsp. tenuifolia John Thomas Howell 1960-8-22 36323 Shasta Manzanita Lake, Lassen Volcanic National Park 1783 Comment
  CAS-BOT-BC177836  Astragalus curvicarpus var. curvicarpus John Thomas Howell 1934-6-16 12226 Shasta Fall River Valley, 2 miles ne. of McArthur Comment
  CAS-BOT-BC177856  Astragalus curvicarpus var. curvicarpus John Thomas Howell 1934-6-16 12226 Shasta Fall River Valley, 2 miles ne. of McArthur Comment
  CAS-BOT-BC178598  Vulpia myuros var. myuros John Thomas Howell 1954-4-26 s.n. Shasta Tower House west of Redding Comment
  CAS-BOT-BC17957  Carex angustata John Thomas Howell 1960-8-22 36406 Shasta Lassen Volcanic National Park. Pond north of Summit Lake. 2042 Comment
  CAS-BOT-BC18032  Carex athrostachya John Thomas Howell 1934-7-4 12419 Shasta 3 miels southwest of Fall River Mills. Comment
  CAS-BOT-BC184584  Vulpia microstachys var. pauciflora John Thomas Howell 1961-6-19 36518 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC185818  Vulpia myuros subsp. megalura John Thomas Howell 1954-4-26 s.n. Shasta 5 miles east of Buckthorn [Buckhorn] Summit on road between Weaverville and Redding Comment
  CAS-BOT-BC185819  Vulpia myuros subsp. megalura John Thomas Howell 1954-4-26 s.n. Shasta Tower House west of Redding Comment
  CAS-BOT-BC185820  Vulpia myuros subsp. megalura John Thomas Howell 1961-6-19 36523 Shasta Reflection Lake 1783 Comment
  CAS-BOT-BC186279  Ribes roezlii var. roezlii John Thomas Howell 1960-8-22 36398 Shasta Hat Lake 1950 Comment
  CAS-BOT-BC192804  Astragalus pauperculus John Thomas Howell 1927-4-5 2304 Shasta Near Frazier Corners, 10 miles ne. of Redding Comment
  CAS-BOT-BC192955  Astragalus purshii var. purshii John Thomas Howell 1934-6-16 12227 Shasta Fall River Valley, 2 miles ne. of McArthur Comment
  CAS-BOT-BC19646  Carex brainerdii John Thomas Howell 1961-6-19 36527 Shasta Lassen Volcanic National Park. Between Reflection Lake and Lily Pond. 1783 Comment
  CAS-BOT-BC198559  Lotus John Thomas Howell 1954-4-26 29186 Shasta Whiskeytown Comment
  CAS-BOT-BC200262  Trisetum spicatum John Thomas Howell 1961-6-20 36545 Shasta Anklin Meadows 1874 Comment
  CAS-BOT-BC200453  Trisetum wolfii John Thomas Howell 1960-8-23 36445 Shasta Lassen Loop above Little Hot Springs Valley 2407 Comment
  CAS-BOT-BC202910  Staphylea bolanderi John Thomas Howell 1927-4-7 2314 Shasta Near Potter Creek, canon [canyon] of the McCloud River 304 Comment
  CAS-BOT-BC208635  Distichlis spicata John Thomas Howell 1955-6-14 30422 Shasta Mineral spring, 0.8 mile west of Tower House 396 Comment
  CAS-BOT-BC212041  Cornus nuttallii John Thomas Howell 1960-8-22 36418 Shasta 5.5 miles west of Park line on road to Viola, near Lassen Volcanic National Park Comment
  CAS-BOT-BC227893  Elymus elymoides John Thomas Howell 1960-8-19 36176 Shasta Lassen Volcanic National Park. Summit ridge, Brokeoff Mt. 2773 Comment
  CAS-BOT-BC227895  Elymus elymoides John Thomas Howell 1960-8-22 36364 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC227896  Elymus elymoides John Thomas Howell 1960-8-19 36175 Shasta Lassen Volcanic National Park. Summit ridge, Brokeoff Mt. 2773 Comment
  CAS-BOT-BC228942  Cistanthe umbellata John Thomas Howell 1961-6-20 36551 Shasta Lassen Volcanic National Park. Anklin Meadows 1874 Comment
  CAS-BOT-BC232865  Phlox John Thomas Howell 1964-5-13 40706 Shasta Lava flow just N of Hot Creek Post Office Comment
  CAS-BOT-BC233235  Polypogon maritimus John Thomas Howell 1955-6-14 30431 Shasta E of Whiskeytown Comment
  CAS-BOT-BC240032  Scribneria bolanderi John Thomas Howell 1955-6-14 30422 A Shasta 0.8 mi. w. of Tower House Comment
  CAS-BOT-BC243200  Poa secunda subsp. secunda John Thomas Howell 1954-4-26 s.n. Shasta 5 miles E of Buckthorn Summit on road to Redding Comment
  CAS-BOT-BC244349  Poa annua John Thomas Howell 1961-6-19 36522 Shasta Reflection Lake 1783 Comment
  CAS-BOT-BC244382  Poa annua John Thomas Howell 1954-4-26 s.n. Shasta 5 miles E of Buckthorn Summit on road to Redding Comment
  CAS-BOT-BC245658  Lemna turionifera John Thomas Howell 1961-6-19 36535 Shasta Lily Pond near Reflection Lake, Lassen Volcanic National Park 1798 Comment
  CAS-BOT-BC247425  Poa pratensis John Thomas Howell 1960-8-22 36358 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC254487  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1939-8-12 15292 Shasta Sulphur Works, Mount Lassen Comment
  CAS-BOT-BC25459  Boechera retrofracta John Thomas Howell 1961-6-20 36541 Shasta Lassen Volcanic National Park. Lassen Highway 1 mile northwest of Lost Creek Bridge. 1798 Comment
  CAS-BOT-BC255919  Poa nervosa John Thomas Howell 1960-8-19 36183 Shasta Summit ridge, Brokeoff Mt., Lassen Volcanic National Park 2773 Comment
  CAS-BOT-BC255920  Poa nervosa John Thomas Howell 1961-6-20 36542 Shasta Lassen Highway 1 mi. NW of Lost Creek Bridge, Lassen Volcanic National Park 1798 Comment
  CAS-BOT-BC25686  Boechera sparsiflora John Thomas Howell 1927-4-7 2311 Shasta Potter Creek near the McCloud River. 304 Comment
  CAS-BOT-BC25908  Boechera suffrutescens John Thomas Howell 1961-6-20 36546 Shasta Lassen Volcanic National Park. Anklin Meadows. 1874 Comment
  CAS-BOT-BC259546  Eriogonum luteolum var. luteolum John Thomas Howell 1936-8-22 12689 Shasta French Gulch Comment
  CAS-BOT-BC259688  Paspalum dilatatum John Thomas Howell 1937-7-19 13146 Shasta 2 miles S of Redding Comment
  CAS-BOT-BC267031  Muhlenbergia filiformis John Thomas Howell 1960-8-22 36401 Shasta Dursch Meadows 1981 Comment
  CAS-BOT-BC268624  Eriogonum spergulinum var. reddingianum John Thomas Howell 1960-8-22 36376 Shasta Lassen Volcanic National Park. Anklin Meadows 1889 Comment
  CAS-BOT-BC270229  Viola adunca John Thomas Howell 1961-6-19 36529 Shasta Lassen Volcanic National Park. Lily Pond Trail near Reflection Lake 1798 Comment
  CAS-BOT-BC272456  Eriogonum nudum var. pubiflorum John Thomas Howell 1960-8-22 36378 Shasta Lassen Volcanic National Park. Anklin Meadows 1889 Comment
  CAS-BOT-BC276737  Chaenactis douglasii var. douglasii John Thomas Howell 1960-8-22 36382 Shasta Anklin Meadows 1889 Comment
  CAS-BOT-BC276738  Chaenactis douglasii var. douglasii John Thomas Howell 1961-6-20 36550 Shasta Anklin Meadows 1874 Comment
  CAS-BOT-BC278871  Festuca occidentalis John Thomas Howell 1961-6-19 36521 Shasta Lassen Volcanic National Park. Reflection Lake 1783 Comment
  CAS-BOT-BC280357  Cirsium occidentale var. venustum John Thomas Howell 1952-6-13 28325 Shasta Bridge Bay, Shasta Lake 304 Comment
  CAS-BOT-BC280882  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell 1960-8-22 36351 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC28465  Carex lenticularis var. lipocarpa John Thomas Howell 1942-9-7 16531 Shasta Edge of Echo Lake, Lassen Volcanic National Park. 2133 Comment
  CAS-BOT-BC284702  Hordeum jubatum John Thomas Howell 1960-8-22 36350 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC286674  Ericameria bloomeri John Thomas Howell 1960-8-22 36381 Shasta Lassen Volcanic National Park. Anklin Meadows 1889 Comment
  CAS-BOT-BC291781  Deinandra lobbii John Thomas Howell 1934-7-5 12426 Shasta 4 miles nw. of Fall River Mills Comment
  CAS-BOT-BC291783  Deinandra lobbii John Thomas Howell 1934-7-5 12426 Shasta 4 miles nw. of Fall River Mills Comment
  CAS-BOT-BC291784  Deinandra lobbii John Thomas Howell 1934-7-5 12426 Shasta 4 miles sw. of FallRiver [Fall River] Mills Comment
  CAS-BOT-BC292711  Cirsium scariosum John Thomas Howell 1960-8-19 36185 Shasta Brokeoff Mt., Lassen Volcanic National Park 2773 Comment
  CAS-BOT-BC29439  Ageratina occidentalis J. T. Howell 1960-8-23 36454 Shasta Lassen Loop east of Diamond Peak 2225 Comment
  CAS-BOT-BC294400  Ericameria parryi var. latior John Thomas Howell 1960-8-22 36414 Shasta Near Lassen Volcanic National Park. 1/2 mile w. of Park line on road to Viola Comment
  CAS-BOT-BC295868  Arnica dealbata John Thomas Howell 1960-8-21 36309 Shasta Lassen Volcanic National Park. Sulphur Works 2133 Comment
  CAS-BOT-BC298570  Erigeron divergens John Thomas Howell 1934-7-4 12414 Shasta 3 miles sw. of Fall River Mills Comment
  CAS-BOT-BC307468  Gnaphalium palustre John Thomas Howell 1960-7-21 35836 Shasta NW of Willow Lake, Lassen Volcanic National Park 1676 Comment
  CAS-BOT-BC307469  Gnaphalium palustre John Thomas Howell 1960-8-22 36402 Shasta Dersch Meadows, Lassen Volcanic National Park 1981 Comment
  CAS-BOT-BC313434  Hemizonella minima John Thomas Howell 1961-6-20 36538 Shasta Chaos Crags Trail near Manzanita Lake, Lassen Volcanic National Park 1889 Comment
  CAS-BOT-BC314625  Grindelia hirsutula John Thomas Howell 1934-6-16 12224 Shasta 3.5 miles NE of McArthur Comment
  CAS-BOT-BC314626  Grindelia hirsutula John Thomas Howell 1934-6-16 12224 Shasta 3.5 miles NE of McArthur Comment
  CAS-BOT-BC318537  Hieracium greenei John Thomas Howell 1961-6-19 36530 Shasta Lily Pond Trail near Reflection Lake, Lassen Volcanic National Park 1798 Comment
  CAS-BOT-BC32222  Carex multicostata John Thomas Howell 1960-8-23 36453 Shasta Lassen Loop north of Diamond Peak. 2255 Comment
  CAS-BOT-BC334602  Leucanthemum vulgare John Thomas Howell 1960-8-23 36423 Shasta Viola 1341 Comment
  CAS-BOT-BC341885  Lessingia nemaclada John Thomas Howell 1936-8-22 12688 Shasta French Gulch Comment
  CAS-BOT-BC341886  Lessingia nemaclada John Thomas Howell 1936-8-22 12688 Shasta French Gulch Comment
  CAS-BOT-BC341887  Lessingia nemaclada John Thomas Howell 1927-4-4 2297 Shasta Ten miles ne. of Redding Comment
  CAS-BOT-BC34222  Carex canescens John Thomas Howell 1961-6-19 36534 Shasta Lassen Volcanic National Park. Lily Pond near Reflection Lake. 1798 Comment
  CAS-BOT-BC34223  Carex canescens John Thomas Howell 1961-6-19 36524 Shasta Lassen Volcanic National Park. Wet edge of Reflection Lake. 1783 Comment
  CAS-BOT-BC34224  Carex canescens John Thomas Howell 1961-6-19 36517 Shasta Lassen Volcanic National Park. Wet margin of Manzanita Lake. 1783 Comment
  CAS-BOT-BC349198  Microseris elegans John Thomas Howell 1954-4-26 29183 Shasta Just west of Tower House Comment
  CAS-BOT-BC357396  Pseudognaphalium microcephalum John Thomas Howell 1960-8-22 36384 Shasta Lassen Volcanic National Park. Anklin Meadows 1889 Comment
  CAS-BOT-BC381803  Taraxacum John Thomas Howell 1961-6-20 36552 Shasta Lassen Volcanic National Park. Anklin Meadows 1874 Comment
  CAS-BOT-BC390750  Spergularia marina John Thomas Howell 1955-6-14 30419 Shasta 0.8 mile west of Tower House 396 Comment
  CAS-BOT-BC401279  Hypericum perforatum John Thomas Howell 1960-8-22 36419 Shasta Near Lassen Volcanic National Park. 5.5 miles west of Park line on road to Viola Comment
  CAS-BOT-BC402462  Dicentra formosa subsp. formosa John Thomas Howell 1927-4-8 2315 Shasta Canon [Canyon] below Potter Creek Cave and just to south of Potter Creek Comment
  CAS-BOT-BC402591  Dicentra uniflora John Thomas Howell 1961-6-20 36569 Shasta Lassen Volcanic National Park. South slope of Diamond Peak 2255 Comment
  CAS-BOT-BC407702  Arceuthobium americanum John Thomas Howell 1960-8-22 36405 Shasta Pond N of Summit Lake 2042 Comment
  CAS-BOT-BC413635  Persicaria amphibia John Thomas Howell 1960-8-22 36411 Shasta Lassen Volcanic National Park. Summit Lake 2042 Comment
  CAS-BOT-BC41407  Draba verna John Thomas Howell 1964-5-12 40703 Shasta Burney Falls. Comment
  CAS-BOT-BC414575  Polygonum douglasii John Thomas Howell 1960-8-23 36458 Shasta Lassen Volcanic National Park. Lassen Loop east of Diamond Peak 2225 Comment
  CAS-BOT-BC417848  Sedella pumila John Thomas Howell 1927-4-4 2299 Shasta 10 miles NE of Redding Comment
  CAS-BOT-BC419553  Eschscholzia lobbii John Thomas Howell 1927-4-5 2303 Shasta Near Frazier Corners, 10 miles ne. of Redding Comment
  CAS-BOT-BC419911  Polygonum polygaloides subsp. kelloggii John Thomas Howell 1960-8-22 36403 Shasta Lassen Volcanic National Park. Dersch Meadows 1981 Comment
  CAS-BOT-BC422216  Rumex acetosella John Thomas Howell 1960-8-22 36388 Shasta Lassen Volcanic National Park. Hat Lake 1950 Comment
  CAS-BOT-BC433402  Rumex crispus John Thomas Howell 1960-8-22 36361 Shasta Lassen Volcanic National Park. Manzanita Lake 1783 Comment
  CAS-BOT-BC433652  Rumex obtusifolius John Thomas Howell 1960-8-22 36422 Shasta Viola 1341 Comment
  CAS-BOT-BC434153  Rumex triangulivalvis John Thomas Howell 1960-8-21 36308 Shasta Lassen Volcanic National Park. Sulphur Works 2133 Comment
  CAS-BOT-BC436642  Luzula comosa var. laxa John Thomas Howell 1960-8-22 36341 Shasta Manzanita Lake 1783 Comment
  CAS-BOT-BC443806  Claytonia rubra subsp. rubra John Thomas Howell 1961-6-20 36536 Shasta Lassen Volcanic National Park. Chaos Crags Trail near Manzanita Lake 1828 Comment
  CAS-BOT-BC443809  Claytonia rubra subsp. rubra John Thomas Howell 1961-6-19 36525 Shasta Lassen Volcanic National Park. Reflection Lake 1783 Comment
  CAS-BOT-BC451751  Claytonia lanceolata John Thomas Howell 1961-6-20 36568 Shasta Lassen Volcanic National Park. South slope of Diamond Peak 2255 Comment
  CAS-BOT-BC45202  Anaphalis margaritacea John Thomas Howell 1960-8-22 36383 Shasta Lassen Volcanic National Park, Anklin Meadows 1889 Comment
  CAS-BOT-BC452101  Potamogeton amplifolius John Thomas Howell 1960-8-23 36424 Shasta Lassen Volcanic National Park. Reflection Lake 1792 Comment
  CAS-BOT-BC452102  Potamogeton amplifolius John Thomas Howell 1960-8-23 36424 Shasta Lassen Volcanic National Park. Reflection Lake 1792 Comment
  CAS-BOT-BC453679  Potamogeton gramineus John Thomas Howell 1960-8-22 36410 Shasta Lassen Volcanic National Park. Summit Lake 2042 Comment
  CAS-BOT-BC453680  Potamogeton gramineus John Thomas Howell 1960-8-22 36409 Shasta Lassen Volcanic National Park. North of Summit Lake 2042 Comment
  CAS-BOT-BC45468  Arctostaphylos nevadensis John Thomas Howell 1960-8-19 36170 Shasta Summit Ridge, Brokeoff Mt. 2773 Comment
  CAS-BOT-BC459445  Fragaria virginiana subsp. platypetala John Thomas Howell 1961-6-19 36526 Shasta Reflection Lake, Lassen Volcanic National Park 1783 Comment
  CAS-BOT-BC46143  Agoseris heterophylla John Thomas Howell 1934-6-16 12228 Shasta 2 miles ne of McArthur Comment
  CAS-BOT-BC474283  Allium obtusum var. obtusum John Thomas Howell 1961-6-20 36567 Shasta South slope of Diamond Peak 2255 Comment
  CAS-BOT-BC494009  Calochortus tolmiei John Thomas Howell 1927-4-6 2310 Shasta Near Whiskeytown Comment
  CAS-BOT-BC500236  Orobanche pinorum John Thomas Howell 1960-8-19 36188 Shasta Lassen Volcanic National Park. Summit ridge, Brokeoff Mt. 2773 Comment
  CAS-BOT-BC536648  Drymocallis pseudorupestris John Thomas Howell 1960-8-19 36186 Shasta Summit ridge, Brokeoff Mountain 2773 Comment
  CAS-BOT-BC54557  Erysimum capitatum John Thomas Howell 1961-6-20 36539 Shasta Lassen Volcanic National Park. East edge of Chaos Jumbles on Lassen Highway. Comment
  CAS-BOT-BC61862  Isoetes nuttallii John Thomas Howell 1927-4-4 2296 Shasta Between Stinking Canyon and Bear Valley, 10 miles ne. of Redding 213 Comment
  CAS-BOT-BC66787  Thysanocarpus curvipes John Thomas Howell 1954-4-26 29174 Shasta 5 miles east of Buckthorn Summit. Comment
  CAS-BOT-BC66788  Thysanocarpus curvipes John Thomas Howell 1927-4-5 2300 Shasta Near Frazier Corners, 10 miles northeast of Redding. Comment
  CAS-BOT-BC68323  Cheilanthes cooperae John Thomas Howell 1927-4-8 2316 Shasta Potter Creek Cave Comment
  CAS-BOT-BC72607  Pteridium aquilinum John Thomas Howell 1960-8-22 36386 Shasta Anklin Meadows 1889 Comment
  CAS-BOT-BC73638  Woodsia oregana John Thomas Howell 1964-5-11 40707 Shasta Lava flow just north of Hot Creek P.O. Comment
  CAS-BOT-BC75995  Berberis pumila John Thomas Howell 1927-4-7 2312 Shasta Potter Creek near the McCloud River. Comment
  CAS-BOT-BC80461  Calocedrus decurrens John Thomas Howell 1960-8-22 36421 Shasta 5.5 miles west of Park line on road to Viola Comment
  CAS-BOT-BC82688  Arnica longifolia John Thomas Howell 1960-8-19 36187 Shasta Summit ridge, Brokeoff Mt., near Lassen Volcanic National Park 2773 Comment
  CAS-BOT-BC90466  Artemisia douglasiana John Thomas Howell 1960-8-21 36315 Shasta Lassen Loop east of Diamond Peak 2225 Comment
  CAS-BOT-BC9850  Delphinium nudicaule John Thomas Howell 1927-4-7 2313 Shasta West side of Horse Mt., above the McCloud River 365 Comment
  JEPS54184  Thysanocarpus curvipes John Thomas Howell 1927-4-5 2300 Shasta about 10 mi ne Redding Comment
  POM203069  Hemizonia lobbii J. T. Howell 1934-7-5 12426 Shasta 4 miles SW of Fall River Mills. Comment
  POM203778  Heterocodon rariflorum J. T. Howell 1934-7-5 12422 Shasta Burney Comment
  POM203842  Aster occidentalis var. occidentalis J. T. Howell 1934-7-14 12412 Shasta 3 miles southwest of Fall River Mills Comment
  POM204049  Astragalus gibbsii J. T. Howell 1934-6-16 12226 Shasta Fall River Valley, 2 miles NE of McArthur. Comment
  POM204153  Osmorhiza occidentalis J. T. Howell 1934-7-5 12425 Shasta Burney Comment
  POM259752  Eryngium castrense J. T. Howell 1934-6-17 12231 Shasta Redding Comment
  RSA0079803  Carex rossii John Thomas Howell 1961-6-20 36554 Shasta Dersch Meadows. 1982 Comment
  RSA15469  Lessingia nemaclada John T. Howell 1936-8-22 12688 Shasta French Gulch Comment
  RSA201273  Carex subfusca J. T. Howell 1960-8-21 36313 Shasta Lassen Loop east of Diamond Peak. 2226 Comment
  RSA201274  Carex raynoldsii J. T. Howell 1961-6-20 36557 Shasta Dersch Meadows 1982 Comment
  RSA201285  Carex raynoldsii J. T. Howell 1961-6-20 36557 Shasta Dersch Meadows 1982 Comment
  RSA201290  Castilleja payneae J. T. Howell 1960-8-19 36169 Shasta Summit ridge, Brokeoff Mtn. 2744 Comment
  RSA201291  Carex canescens subsp. canescens J. T. Howell 1961-6-19 36524 Shasta Wet edge of Reflection Lake 1784 Comment
  RSA201297  Eriogonum spergulinum var. reddingianum J. T. Howell 1960-8-22 36376 Shasta Anklin Meadows. 1890 Comment
  RSA201327  Castilleja arachnoidea J. T. Howell 1960-8-19 36169 Shasta Summit ridge, Brokeoff Mtn. 2744 Comment
  RSA216181  Cordylanthus pilosus subsp. hansenii J. T. Howell 1969-8-4 45876 Shasta hot dry flat about 9 miles NE of Cottonwood Comment
  RSA22233  Eryngium castrense J. T. Howell 1934-6-16 12225 Shasta 3.5 miles northeast of McArthur Comment
  RSA766297  Eriogonum spergulinum var. reddingianum J. T. Howell 1960-8-22 36376 Shasta Anklin Meadows. 1890 Comment
  RSA97063  Plantago coronopus J. T. Howell 1954-4-26 29179 Shasta Just west of Tower House. Comment
  RSA97065  Phacelia egena J. T. Howell 1954-4-26 29175 Shasta Five miles east of Buckthorn Summit. Comment
  SBBG27239  Eryngium articulatum J. T. Howell 1934-6-17 12229 Shasta Redding Comment
  SD71002  Carex canescens John Thomas Howell 1961-6-19 36517 Shasta Lassen Volcanic National Park; wet margin of Manzanita Lake. 1783 Comment
  SEINET10460710  Heterocodon rariflorum Howell 1934-7-5 Howell 12422 Shasta BURNEY Comment
  SEINET3841330 Image available Limnanthes alba var. versicolor John Thomas Howell 1964-5-13 40705 Shasta Cayton Creek, 5 miles north of Burney Falls Comment
  SEINET7556565 Image available Carex deflexa var. boottii John Thomas Howell 1960-8-22 36408 Shasta Plants of Lassen Volcanic National Park, pond north of Summit Lake. 2042 Comment
  SEINET7577143 Image available Carex subfusca John Thomas Howell 1934-7-5 12424 Shasta Burney. Comment
  SEINET7577195 Image available Carex subfusca John Thomas Howell 1960-8-21 36313 A Shasta Lassen Volcanic National Park, Lassen Loop east of Diamond Peak. 2225 Comment
  UCD101326  Eriogonum ursinum John Thomas Howell 1960-8-19 36179 Shasta Lassen Volcanic National Park; Brokeoff Mt. 2743 Comment
  UCD103702  Gayophytum racemosum John Thomas Howell 1960-8-23 36450 Shasta Lassen Loop north of Diamond Peak. 2255 Comment
  UCD108579  Lupinus lepidus var. sellulus John Thomas Howell 1961-6-19 36547 Shasta Lassen Volcanic National Park. Anklin Meadows. 1874 Comment
  UCD114429  Boechera rectissima John Thomas Howell 1961-6-20 36546 Shasta Anklin Meadows. 1874 Comment
  UCD116492  Limnanthes alba subsp. versicolor John Thomas Howell 1964-5-13 40705 Shasta near Cayton Creek, about 5 miles north of Burney Falls. Comment
  UCD120633  Phacelia mutabilis John Thomas Howell 1939-8-12 15290 Shasta Sulphur Works, Lassen Peak. Comment
  UCD121769  Galium grayanum John Thomas Howell 1960-8-19 36178 Shasta Summit ridge, Brokeoff Mountain. 2743 Comment
  UCD122122  Castilleja arachnoidea John Thomas Howell 1960-8-19 36169 Shasta Summit ridge, Brokeoff Mountain. 2743 Comment
  UCD124393  Plantago coronopus John Thomas Howell 1954-4-26 29179 Shasta west of Tower House. Comment
  UCD130689  Cirsium scariosum var. americanum John Thomas Howell 1960-8-19 36185 Shasta Lassen Volcanic National Park; Brokeoff Mountain. 2743 Comment
  UCD135285  Equisetum arvense John Thomas Howell 1960-8-22 36391 Shasta Lassen Volcanic National Park, Hat Lake. 1950 Comment
  UCD138216  Potamogeton amplifolius John Thomas Howell 1960-8-23 36424 Shasta Reflection Lake. Lassen Volcanic National Park. 1792 Comment
  UCD140222  Carex canescens subsp. canescens John Thomas Howell 1961-6-19 36534 Shasta Lassen Volcanic National Park. Reflection Lake. 1798 Comment
  UCD140244  Carex deflexa var. boottii John Thomas Howell 1961-6-20 36553 Shasta Lassen Volcanic National Park, Dersch Meadows. 1981 Comment
  UCD140776  Carex raynoldsii John Thomas Howell 1961-6-20 36557 Shasta Lassen Volcanic National Park, Dersch Meadows. 1981 Comment
  UCD141878  Juncus mertensianus John Thomas Howell 1960-8-21 36314 Shasta Lassen Loop east of Diamond Peak. Lassen Volcanic National Park. 2225 Comment
  UCD142114  Croton setiger John Thomas Howell 1960-8-22 36420 Shasta 5.5 miles west of Park line on road to Viola. Comment
  UCD150614  Dicentra uniflora John Thomas Howell 1961-6-20 36569 Shasta Lassen Volcanic National Park. South slope of Diamond Peak. 2255 Comment
  UCD49794  Eleocharis macrostachya John Thomas Howell 1960-8-23 36427 Shasta Reflections Lake, Shasta County. 1792 Comment
  UCD94781  Vulpia myuros John Thomas Howell 1961-6-19 36523 Shasta Reflection Lake, Lassen Volcanic National Park. 1783 Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
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