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BLACK LOCUST - Robinia species

BLACK LOCUST PLANT

BLACK LOCUST PLANT

BLACK LOCUST PLANT

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BLACK LOCUST PLANT

BLACK LOCUST PLANT BLACK LOCUST PLANT
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BLACK LOCUST PLANT
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Description.  The pinnately compound leaves have oval leaflets 2-5 cm in length.  Fragrant white or cream-colored legume flowers develop into large brown leathery pods containing five to nine seeds.  The black locust typically has short (1- to 2-cm) thorns.
Geographic range.  Several species of locust trees are naturalized in the woods of the eastern half of the United States.  They are also grown as landscape trees.
Toxic principle.  Robin, a plant phytotoxin, is similar to the toxic principles found in castor bean (ricin) and rosary pea (abrin).  The bark, seeds and leaves contain the toxin.
Toxicity.  Consumption of as little as 0.04% of body weight is toxic to horses; cattle may be affected by consumption of approximately 0.5% body weight.

Diagnosis

Clinical signs: Nausea, emesis, diarrhea and renal failure may be accompanied by weakness, dyspnea, tachycardia and depression.

Laboratory diagnosis:  non-specific

Lesions:  gastroenteritis 

Treatment is of limited value, but should include detoxification and supportive therapy.


 


Copyright 2002

University of Pennsylvania
Created by:    Alexander Chan (2003), Daphne Downs (2002), Chris Tsai (2001), Brett Begley (2000), Janet Triplett (1997)
Faculty Advisor:  Dr. Robert Poppenga