- Common names:
- Mountain, Black or Sierra laurel
- W. coastal states
- Lakesides, streamsides, mountain meadows
- Toxic season:
- Evergreen shrub to 5' tall. Leaves are primarily toothless, thickly lance-shaped, stiff and leathery, alternate, up to 3" long. Flowers are small, white, somewhat urn-shaped in thick elongated clusters up to 4" long at branch ends.
- Poison type:
- Diterpenoid compounds (grayanotoxins)
- Disruptive to normal skeletal and cardiac muscle and nerve function. Signs include slow/irregular heart rate, blurred vision, paralysis, excessive salivation or foaming at the mouth, depression, vomiting, colic, labored breathing, prostration, possibly coma and death.
- Activated charcoal, purgatives if early after ingestion. Keep animal quiet, provide good quality feed and water. Medication may be needed to restore heart efficiency.
- Leaves are most frequently eaten; as little as 1 oz. of leaves may be lethal to a sheep. All livestock are known to be susceptible. Toxic to humans. Other members of the genus may also be poisonous.
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