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The death camas species, zygadenus paniculatus and z. elegans, as poisonous plants
Marsh, Charles Dwight, (1922)
Stagger grass ... as a poisonous plant
Marsh, Charles Dwight, (1929)
Poisonous properties of the whorled milkweeds asclepias pumila and a. verticulata var. geyeri
Marsh, Charles Dwight, (1921)