. Diseases of cattle, sheep, goats and swine. Veterinary medicine. PLANTS POISONOUS TO STOCK. 251 native on the Pacific Slope from San Francisco to British Columbia. The plant is rejDorted from Oregon as poisonous to sheep. It is quite probable that the leaves contain andromedotoxin, but they have not been tested. * Rhododendron maximum.—The great laurel (rosebay ; moun- tain laurel; rhododendron) is a large evergreen bush or small tree which is quite commonly cultivated for ornament, and is found native in the Allegheny Mountains. The . leaves contain andromedotoxin, and they are occa- sional
. Diseases of cattle, sheep, goats and swine. Veterinary medicine. PLANTS POISONOUS TO STOCK. 251 native on the Pacific Slope from San Francisco to British Columbia. The plant is rejDorted from Oregon as poisonous to sheep. It is quite probable that the leaves contain andromedotoxin, but they have not been tested. * Rhododendron maximum.—The great laurel (rosebay ; moun- tain laurel; rhododendron) is a large evergreen bush or small tree which is quite commonly cultivated for ornament, and is found native in the Allegheny Mountains. The . leaves contain andromedotoxin, and they are occa- sionally eaten by stock with fatal effect. PRIMULACE^ (PKIMROSE FAMILY). Anagallis arvensis. — The pimpernel is a European plant which has obtained a specially strong foothold in California, where it grows luxuriantly and is sometimes known as poison weed. It is suspected of having caused the death of a horse at Santa Ana. Chemists have isolated a powerfully poisonous oil and a strongly active ferment from the plant. OLEACEiE (olive FAMILY). Ligustrum vulgare.—The privet, or prim, is a garden shrub, introduced from Europe and Asia, which is much used for hedges, and has escaped from cultivation in western New York and southward to North Carolina. Accidents have been occasioned in children both by the fruit and the leaves. The plant is to be suspected in cases of poisoning in animals. APOCYNACE^ (dogbane FAMILY). Fig 108.—Milk Vv^^d Apocynum androssemifolium, spreading dog- {Asdepias eriocarpa), bane: A. cannabinum, Indian hemp. — These one-sixth natural size, plants are generally distributed throughout the United States. Stock generally avoid them in pasture fields on account of their acrid milky juice. When dry they are not so poisonous as when in the fresh state. Nerium oleander.—The oleander is a common house plant throughout a large portion of the United States. It grows freely out of doors in the Southern and Western States, and has probably escaped from culti- vatio
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