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ARS Home » Pacific West Area » Logan, Utah » Poisonous Plant Research » People & Locations » Clinton Stonecipher (Clint)
Clinton Stonecipher (Clint)
Poisonous Plant Research
Res Rangeland Mgmt Spec

Phone: (435) 797-4033
Fax: (435) 797-4008

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)

Projects
Developing Mitigation Strategies for Poisonous Plants in Livestock Production Systems
In-House Appropriated (D)
  Accession Number: 445578
Non-Funded Cooperative Agreement for Research Involving Animals
Non-Funded Cooperative Agreement (N)
  Accession Number: 443157

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
The evaluation of earwax as a noninvasive specimen to determine livestock exposure to death camas (Zigadenus paniculatus) - (Peer Reviewed Journal)
The use of earwax to determine livestock exposure to teratogenic lupine Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Lee, S.T., Welch, K.D., Valles, K.R., Cook, D. 2024. The use of earwax to determine livestock exposure to teratogenic lupine. Toxicon. 248: Article 108053. https://doi.org/10.1016/j.toxicon.2024.108053.
Comparison of the acute toxicity of zygacine versus zygadenine Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Gardner, D.R., Lee, S.T., Stonecipher, C.A., Cook, D. 2024. Comparison of the acute toxicity of zygacine versus zygadenine. Toxicon. 248: Article 108037. https://doi.org/10.1016/j.toxicon.2024.108037.
Comparison of sheep and goats to the acute toxic effects of foothill death camas Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Lee, S.T., Stonecipher, C.A., Gardner, D., Cook, D. 2024. Comparison of sheep and goats to the acute toxic effects of foothill death camas. Poisonous Plant Research. 7:17-26. https://doi.org/10.26077/c444-bc12.
Cattle toxicity from woolly locoweed (Astragalus mollissimus): a case study in central New Mexico Reprint Icon - (Peer Reviewed Journal)
Spackman, C., Stonecipher, C.A., Cook, D. 2024. Cattle toxicity from woolly locoweed (Astragalus mollissimus): a case study in central New Mexico. Poisonous Plant Research. 7:3-7.
Lupine-induced crooked calf syndrome: Mitigation through intermittent grazing management of cattle Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Lee, S.T., Panter, K.E., Stegelmeier, B.L., Stonecipher, C.A., Cook, D. 2024. Lupine-induced crooked calf syndrome: Mitigation through intermittent grazing management of cattle. Translational Animal Science. 8. Article txae079. https://doi.org/10.1093/tas/txae079.
Acute death as a result of poisoning tropical (Bos taurus indicus) but not temperate (Bos taurus taurus) cattle after oral dosing with Lupinus leucophyllus (velvet lupine) Reprint Icon - (Peer Reviewed Journal)
Green, B.T., Welch, K.D., Lee, S.T., Davis, T.Z., Stonecipher, C.A., Stegelmeier, B.L., Cook, D. 2024. Acute death as a result of poisoning tropical (Bos taurus indicus) but not temperate (Bos taurus taurus) cattle after oral dosing with Lupinus leucophyllus (velvet lupine). Toxicon. 242. Article 107706. https://doi.org/10.1016/j.toxicon.2024.107706.
Case report: Salvia reflexa-contaminated hay poisoning in cattle Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Gardner, D.R., Webb, B.T., Laegreid, W., Welch, K.D., Stegelmeier, B.L., Cook, D. 2024. Case report: Salvia reflexa-contaminated hay poisoning in cattle. The Bovine Practitioner. 58(1):63-68. https://doi.org/10.21423/bovine-vol58no1p63-68.
Ruminant metabolism of zygacine, the major toxic alkaloid in foothill death camas (Zigadenus paniculatus) - (Peer Reviewed Journal)
Larkspur toxicosis alters basal diet intake by cattle Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Green, B.T., Welch, K.D., Gardner, D.R., Cook, D. 2023. Larkspur toxicosis alters basal diet intake by cattle. Applied Animal Science. 39(5):257-263. https://doi.org/10.15232/aas.2023-02405.
Biomarkers and their potential for detecting livestock plant poisonings in western North America Reprint Icon - (Peer Reviewed Journal)
Green, B.T., Welch, K.D., Lee, S.T., Stonecipher, C.A., Gardner, D.R., Stegelmeier, B.L., Davis, T.Z., Cook, D. 2023. Biomarkers and their potential for detecting livestock plant poisonings in western North America. Frontiers in Veterinary Science. 10. Article 1104702. https://doi.org/10.3389/fvets.2023.1104702.
Identification of two death camas chemotypes within a population and evaluation of toxicity Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Lee, S.T., Welch, K.D., Gardner, D.R., Cook, D. 2022. Identification of two death camas chemotypes within a population and evaluation of toxicity. Toxicon. 215:6-10. https://doi.org/10.1016/j.toxicon.2022.05.047.
Mineral-salt supplementation to ameliorate larkspur poisoning in cattle Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Green, B.T., Welch, K.D., Gardner, D.R., Fritz, S., Cook, D., Pfister, J.A. 2022. Mineral-salt supplementation to ameliorate larkspur poisoning in cattle. Journal of Animal Science. 100(5):01-14. Article skac133. https://doi.org/10.1093/jas/skac133.
Relative influence of precipitation and grazing on a salt desert shrub plant community - (Peer Reviewed Journal)
Stonecipher, C.A., Thacker, E., Ralphs, M.H. 2022. Relative influence of precipitation and grazing on a salt desert shrub plant community. Western North American Naturalist. 88(2):245-253.
Evaluation of diazepam as a drug treatment for water hemlock (Cicuta species) poisoning in Spanish goats Reprint Icon - (Peer Reviewed Journal)
Green, B.T., Stonecipher, C.A., Welch, K.D., Lee, S.T., Cook, D. 2022. Evaluation of diazepam as a drug treatment for water hemlock (Cicuta species) poisoning in Spanish goats. Toxicon. 205:79-83. https://doi.org/10.1016/j.toxicon.2021.12.003.
Toxic plants Reprint Icon - (Book / Chapter)
Welch, K.D., Green, B.T., Gardner, D.R., Stonecipher, C.A., Cook, D. 2022. Toxic plants. In: Gupta, R.C., editor. Reproductive and Developmental Toxicology. Third Edition. San Diego, CA: Academic Press. p. 933-953. https://doi.org/10.1016/B978-0-323-89773-0.00046-1.
Grazing rotation on restored rangeland as a new tool for medusahead control Reprint Icon - (Peer Reviewed Journal)
Spackman, C., Stonecipher, C.A., Panter, K.E., Villalba, J.J. 2021. Grazing rotation on restored rangeland as a new tool for medusahead control. Western North American Naturalist. 81(3):438-442. https://doi.org/10.3398/064.081.0312.
The use of a herbicide as a tool to increase livestock consumption of medusahead (Taeniatherum caput-medusae) Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Spackman, C., Panter, K.E., Villalba, J.J. 2021. The use of a herbicide as a tool to increase livestock consumption of medusahead (Taeniatherum caput-medusae). Invasive Plant Science and Management. 14(2):106-114. https://doi.org/10.1017/inp.2021.12.
Hepatotoxicity in cattle associated with Salvia reflexa diterpenes, including 7-hydroxyrhyacophiline, a new seco-clerodane diterpene Reprint Icon - (Peer Reviewed Journal)
Gardner, D.R., Panter, K.E., Stegelmeier, B.L., Stonecipher, C.A. 2021. Hepatotoxicity in cattle associated with Salvia reflexa diterpenes, including 7-hydroxyrhyacophiline, a new seco-clerodane diterpene. Journal of Agricultural and Food Chemistry. 69(4):1251-1258. https://doi.org/10.1021/acs.jafc.0c06390.
Clinical, pathological and toxicological characterization of Salvia relexa (lance-leaf sage) poisoning in cattle fed contaminated hay Reprint Icon - (Peer Reviewed Journal)
Panter, K.E., Stegelmeier, B.L., Gardner, D.R., Stonecipher, C.A., Lee, S.T., Kitchen, D., Brackett, A., Davis, C. 2021. Clinical, pathological and toxicological characterization of Salvia relexa (lance-leaf sage) poisoning in cattle fed contaminated hay. Journal of Veterinary Diagnostic Investigation. 33(3):537-547. https://doi.org/10.1177/1040638721995784.
Herbicidal control of deathcamas (Zigadenus paniculatus) Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Ransom, C., Thacker, E., Welch, K.D., Gardner, D.R., Palmer, M. 2020. Herbicidal control of deathcamas (Zigadenus paniculatus). Weed Technology. 35(3):380-384. https://doi.org/10.1017/wet.2020.102 .
Diterpenoids from Gutierrezia sarothrae and G. microcephala: chemical diversity, chemophenetics and implications to toxicity in grazing livestock Reprint Icon - (Peer Reviewed Journal)
Gardner, D.R., Cook, D., Larsen, S.W., Stonecipher, C.A., Johnson, R. 2020. Diterpenoids from Gutierrezia sarothrae and G. microcephala: chemical diversity, chemophenetics and implications to toxicity in grazing livestock. Phytochemistry. 178. https://doi.org/10.1016/j.phytochem.2020.112465.
Plant silicon as a factor in Medusahead (Taeniatherum caput-medusae) invasion Reprint Icon - (Peer Reviewed Journal)
Spackman, C., Monaco, T.A., Stonecipher, C.A., Villalba, J.J. 2020. Plant silicon as a factor in Medusahead (Taeniatherum caput-medusae) invasion. Invasive Plant Science and Management. 13(3):143-154. https://doi.org/10.1017/inp.2020.20.
Herbicide control of broom snakeweed (Gutierrizia sarothrae) Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Ransom, C., Thacker, E., Welch, K.D. 2020. Herbicide control of broom snakeweed (Gutierrizia sarothrae). Poisonous Plant Research. 3:74-81. https://doi.org/10.26077/ze5v-af64.
Seasonal variation in toxic steroidal alkaloids of foothill death camas (Zigadenus paniculatus) Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Cook, D., Welch, K.D., Gardner, D.R., Pfister, J.A. 2020. Seasonal variation in toxic steroidal alkaloids of foothill death camas (Zigadenus paniculatus). Biochemical Systematics and Ecology. 90. https://doi.org/10.1016/j.bse.2020.104044.
An evaluation of the susceptibility of goats to larkspur toxicosis Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Stonecipher, C.A., Gardner, D.R., Green, B.T., Cook, D. 2020. An evaluation of the susceptibility of goats to larkspur toxicosis. Poisonous Plant Research. 3:19-27. https://doi.org/10.26077/y7pp-q806.
The acute toxicity of water hemlock (Cicuta douglasii) in a goat model Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Stonecipher, C.A., Lee, S.T., Cook, D. 2020. The acute toxicity of water hemlock (Cicuta douglasii) in a goat model. Toxicon. 176:55-58. https://doi.org/10.1016/j.toxicon.2020.02.010.
Geographical and seasonal variation in water hemlock (Cicuta maculata) toxins Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Welch, K.D., Lee, S.T., Cook, D., Pfister, J.A. 2020. Geographical and seasonal variation in water hemlock (Cicuta maculata) toxins. Biochemical Systematics and Ecology. 89. https://doi.org/10.1016/j.bse.2020.104012.
Larkspur poisoning of cattle: plant and animal factors that influence plant toxicity Reprint Icon - (Peer Reviewed Journal)
Green, B.T., Gardner, D.R., Stonecipher, C.A., Lee, S.T., Pfister, J.A., Welch, K.D., Cook, D., Davis, T.Z., Stegelmeier, B.L. 2020. Larkspur poisoning of cattle: plant and animal factors that influence plant toxicity. Rangelands. 42(1):1-8. https://doi.org/10.1016/j.rala.2020.01.004.
Analysis of rumen contents and ocular fluid for toxic alkaloids from goats and cows dosed larkspur (Delphinium berbeyi), lupine (Lupinus leucophyllus), and death camas (Zigadenus paniculatus) Reprint Icon - (Peer Reviewed Journal)
Lee, S.T., Welch, K.D., Stonecipher, C.A., Cook, D., Gardner, D.R., Pfister, J.A. 2020. Analysis of rumen contents and ocular fluid for toxic alkaloids from goats and cows dosed larkspur (Delphinium berbeyi), lupine (Lupinus leucophyllus), and death camas (Zigadenus paniculatus). Toxicon. 176: 21-29. https://doi.org/10.1016/j.toxicon.2020.01.003.
Animal and plant factors which affect larkspur toxicosis in cattle: Sex, age, breed, and plant chemotype Reprint Icon - (Peer Reviewed Journal)
Green, B.T., Keele, J.W., Bennett, G.L., Gardner, D.R., Stonecipher, C.A., Cook, D., Pfister, J.A. 2019. Animal and plant factors which affect larkspur toxicosis in cattle: Sex, age, breed, and plant chemotype. Toxicon. 165:31-39. https://doi.org/10.1016/j.toxicon.2019.04.013.
Evaluation of noninvasive specimens to diagnose livestock exposure to toxic larkspur (Delphinium spp.) Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Lee, S.T., Green, B.T., Cook, D., Welch, K.D., Pfister, J.A., Gardner, D.R. 2019. Evaluation of noninvasive specimens to diagnose livestock exposure to toxic larkspur (Delphinium spp.). Toxicon. 161:33-39. https://doi.org/10.1016/j.toxicon.2019.02.013.
Sex-dependent differences for larkspur (Delphinium barbeyi) toxicosis in yearling Angus cattle Reprint Icon - (Peer Reviewed Journal)
Green, B.T., Keele, J.W., Gardner, D.R., Welch, K.D., Bennett, G.L., Cook, D., Pfister, J.A., Davis, T.Z., Stonecipher, C.A., Lee, S.T., Stegelmeier, B.L. 2019. Sex-dependent differences for larkspur (Delphinium barbeyi) toxicosis in yearling Angus cattle. Journal of Animal Science. 97(3):1424-1432. https://doi.org/10.1093/jas/skz002.
An evaluation of hair, oral fluid, earwax, and nasal mucus as noninvasive specimens to determine livestock exposure to teratogenic lupine species Reprint Icon - (Peer Reviewed Journal)
Lee, S.T., Stonecipher, C.A., Carriao Dos Santos, F., Pfister, J.A., Welch, K.D., Cook, D., Green, B.T., Gardner, D.R., Panter, K.E. 2019. An evaluation of hair, oral fluid, earwax, and nasal mucus as noninvasive specimens to determine livestock exposure to teratogenic lupine species. Journal of Agricultural and Food Chemistry. 67(1):43–49. https://doi.org/10.1021/acs.jafc.8b05673.
Long-term persistence of cool-season grasses planted to suppress broom snakeweed, downy brome, and weedy forbs Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Thacker, E., Welch, K.D., Ralphs, M.H., Monaco, T.A. 2019. Long-term persistence of cool-season grasses planted to suppress broom snakeweed, downy brome, and weedy forbs. Rangeland Ecology and Management. 72(2):266-274. https://doi.org/10.1016/j.rama.2018.10.008.
Grazing of Delphinium occidentale (duncecap larkspur) by susceptible and resistant cattle Reprint Icon - (Peer Reviewed Journal)
Pfister, J.A., Green, B.T., Gardner, D.R., Welch, K.D., Cook, D., Stonecipher, C.A. 2018. Grazing of Delphinium occidentale (duncecap larkspur) by susceptible and resistant cattle. Professional Animal Scientist. 34(6):581-593. https://doi.org/10.15232/pas.2018-01775.
Genetic relationships among different chemotypes of Lupinus sulphureus Reprint Icon - (Peer Reviewed Journal)
Cook, D., Mott, I.W., Larson, S.R., Lee, S.T., Johnson, R., Stonecipher, C.A. 2018. Genetic relationships among different chemotypes of Lupinus sulphureus. Journal of Agricultural and Food Chemistry. 66(8):1773-1783. https://doi.org/10.1021/acs.jafc.7b05884.
Two Delphinium ramosum chemotypes, their biogeographical distribution and potential toxicity Reprint Icon - (Peer Reviewed Journal)
Cook, D., Gardner, D.R., Lee, S.T., Stonecipher, C.A., Pfister, J.A., Welch, K.D., Green, B.T. 2017. Two Delphinium ramosum chemotypes, their biogeographical distribution and potential toxicity. Biochemical Systematics and Ecology. 75:1-9. https://doi.org/10.1016/j.bse.2017.09.002.
Serum toxicokinetics after intravenous and oral dosing of larkspur toxins in goats - (Peer Reviewed Journal)
Welch, K.D., Gardner, D.R., Stonecipher, C.A., Green, B.T., Pfister, J.A. 2017. Serum toxicokinetics after intravenous and oral dosing of larkspur toxins in goats. Toxicon. 133:91-94. doi: 10.1016/j.toxicon.2017.05.008.
Changes in the rumen bacterial microbiome of cattle exposed to ponderosa pine needles - (Peer Reviewed Journal)
Welch, K.D., Stonecipher, C.A., Gardner, D.R., Cook, D., Pfister, J.A. 2017. Changes in the rumen bacterial microbiome of cattle exposed to ponderosa pine needles. Journal of Animal Science. 95:2314–2322. doi: 10.2527/jas2016.1228.
Effects of elevated CO2 on the swainsonine chemotypes of Astragalus lentiginosus and Astragalus mollissimus - (Peer Reviewed Journal)
Cook, D., Gardner, D.R., Pfister, J.A., Stonecipher, C.A., Robins, J.G., Morgan, J.A. 2017. Effects of elevated CO2 on the swainsonine chemotypes of Astragalus lentiginosus and Astragalus mollissimus. Journal of Chemical Ecology. 43(3):307-316.
Administering multiple doses of a non N-(methylsuccinimido) anthranoyllycoctonine (MSAL)-containing tall larkspur (Delphinium occidentale) to cattle - (Peer Reviewed Journal)
Welch, K.D., Stonecipher, C.A., Green, B.T., Gardner, D.R., Cook, D., Pfister, J.A. 2017. Administering multiple doses of a non N-(methylsuccinimido) anthranoyllycoctonine (MSAL)-containing tall larkspur (Delphinium occidentale) to cattle. Toxicon. 128:46-49. doi: 10.1016/j.toxicon.2017.01.020.
Seeding medusahead-invaded rangeland following mechanical disturbance on the channeled scablands of eastern Washington - (Peer Reviewed Journal)
Stonecipher, C.A., Panter, K.E., Jensen, K.B., Rigby, C.W., Villalba, J.J. 2017. Seeding medusahead-invaded rangeland following mechanical disturbance on the channeled scablands of eastern Washington. Rangeland Ecology and Management. 70:388-395.
Revegetation of medusahead-invaded rangelands in the channeled scablands of eastern Washington - (Peer Reviewed Journal)
Stonecipher, C.A., Panter, K.E., Jensen, K.B., Rigby, C.W., Villalba, J. 2017. Revegetation of medusahead-invaded rangelands in the channeled scablands of eastern Washington. Rangeland Ecology and Management. 70(3):388-395. doi: 10.1016/j.rama.2016.11.002.
Fiddleneck (Amsinckia intermedia Lehmann Boraginaceae): Toxicity in cattle potentiated by burrow weed (Isocoma acradenia) - (Peer Reviewed Journal)
Panter, K.E., Colegate, S.M., Davis, T.Z., Welsh, S.L., Gardner, D.R., Cuneo, P.S., Stegelmeier, B.L., Stonecipher, C.A. 2017. Fiddleneck (Amsinckia intermedia Lehmann Boraginaceae): Toxicity in cattle potentiated by burrow weed (Isocoma acradenia). International Journal of Poisonous Plant Research. 4(1):16-24.
Amsinckia Lehmann (Boraginaceae): A summary taxonomic review - (Peer Reviewed Journal)
Welsh, S.L., Panter, K.E., Colegate, S.M., Gardner, D.R., Cuneo, P.S., Davis, T.Z., Stegelmeier, B.L., Stonecipher, C.A. 2017. Amsinckia Lehmann (Boraginaceae): A summary taxonomic review. International Journal of Poisonous Plant Research. 4(1):25-35.
Comparison of the serum toxicokinetics of larkspur toxins in cattle, sheep and goats Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Gardner, D.R., Green, B.T., Stonecipher, C.A., Cook, D., Pfister, J.A. 2016. Comparison of the serum toxicokinetics of larkspur toxins in cattle, sheep and goats. Toxicon. 119:270-273.
Effect of protein supplementation on forage utilization by cattle in annual grass-dominated rangelands in the Channel Scablands of Eastern Washington Reprint Icon - (Peer Reviewed Journal)
Stonecipher, C.A., Panter, K.E., Villalba, J.J. 2016. Effect of protein supplementation on forage utilization by cattle in annual grass-dominated rangelands in the Channel Scablands of Eastern Washington. Journal of Animal Science. 94(6):2572-2582.
A swainsonine survey of North American Astragalus and Oxytropis taxa implicated as locoweeds Reprint Icon - (Peer Reviewed Journal)
Cook, D., Gardner, D.R., Lee, S.T., Pfister, J.A., Stonecipher, C.A., Welsh, S.L. 2016. A swainsonine survey of North American Astragalus and Oxytropis taxa implicated as locoweeds. Toxicon. 118:104-111.
Phylogenetic examination of two chemotypes of Lupinus leucophyllus - (Peer Reviewed Journal)
Mott, I.W., Cook, D., Lee, S.T., Stonecipher, C.A., Panter, K.E. 2016. Phylogenetic examination of two chemotypes of Lupinus leucophyllus. Biochemical Systematics and Ecology. 65:57-65.
The effect of co-administration of death camas (Zigadenus spp.) and low larkspur (Delphinium spp.) in cattle Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Green, B.T., Gardner, D.R., Stonecipher, C.A., Pfister, J.A., Cook, D. 2016. The effect of co-administration of death camas (Zigadenus spp.) and low larkspur (Delphinium spp.) in cattle. Toxins. doi: 10.3390/toxins8010021.
The relative toxicity of Delphinium stachydeum in mice and cattle Reprint Icon - (Peer Reviewed Journal)
Cook, D., Welch, K.D., Green, B.T., Gardner, D.R., Pfister, J.A., Constantino, J., Stonecipher, C.A. 2015. The relative toxicity of Delphinium stachydeum in mice and cattle. Toxicon. 99:36-43.
A survey of tremetone, dehydrotremetone and structurally related compounds in Isocoma spp. (Goldenbush) in the southwestern United States Reprint Icon - (Peer Reviewed Journal)
Lee, S.T., Cook, D., Davis, T.Z., Gardner, D.R., Johnson, R.L., Stonecipher, C.A. 2015. A survey of tremetone, dehydrotremetone and structurally related compounds in Isocoma spp. (Goldenbush) in the southwestern United States. Journal of Agricultural and Food Chemistry. 63(3):872-879.
The effect of western juniper on the estrous cycle in beef cattle Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Stonecipher, C.A., Gardner, D.R., Panter, K.E., Parsons, C., Deboodt, T., Johnson, B. 2015. The effect of western juniper on the estrous cycle in beef cattle. Research in Veterinary Science. 98:16-18.
The effect of low larkspur (Delphinium spp.) co-administration on the acute toxicity of death camas (Zigadenus spp.) in sheep Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Green, B.T., Gardner, D.R., Stonecipher, C.A., Panter, K.E., Pfister, J.A., Cook, D. 2013. The effect of low larkspur (Delphinium spp.) co-administration on the acute toxicity of death camas (Zigadenus spp.) in sheep. Toxicon. 76:50-58.
The alkaloid profiles of Sophora nuttalliana and Sophora stenophylla - (Peer Reviewed Journal)
Lee, S.T., Cook, D., Molyneux, R.J., Marcolongo-Pereira, C., Stonecipher, C.A., Gardner, D.R. 2013. The alkaloid profiles of Sophora nuttalliana and Sophora stenophylla. Biochemical Systematics and Ecology. 48: 58-64.
Alkaloid profiling as an approach to differentiate Lupinus garfieldensis, Lupinus sabinianus, and Lupinus sericeus - (Peer Reviewed Journal)
Cook, D., Lee, S.T., Pfister, J.A., Stonecipher, C.A., Welch, K.D., Green, B.T., Panter, K.E. 2011. Alkaloid profiling as an approach to differentiate Lupinus garfieldensis, Lupinus sabinianus, and Lupinus sericeus. Phytochemical Analysis. 23(3): 278-84.