buckthorn

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Related to European buckthorn: common teasel

buck·thorn

(bŭk'thōrn),
Shrub or tree of family Rhamnaceae, Karwinskia humboldtiana commonly called Coyotillo or Tullidora. Found in arid southwestern U.S. environments; uncharacterized neurotoxin with high toxicity; single intake of just 0.05-0.3% by body weight in plant material; fruit is particularly toxic. Impaired cerebellar and peripheral nerve function is characteristic; clinical signs include hypersensitivity, tremors, abnormal gait, progressing to paralysis especially in hind quarters; pulmonary edema in some cases also. Toxin produces progressive polyneuropathy through segmental demyelination and degenerative changes in axons of peripheral nerves, followed by myodegeneration.
See also: polyneuropathy.
Farlex Partner Medical Dictionary © Farlex 2012

buckthorn

(bŭk′thôrn′)
n.
1. Any of various shrubs or small trees of the genera Rhamnus and Frangula, including several ornamentals, medicinal species such as the cascara buckthorn, and the invasive species R. cathartica.
2. See bumelia.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

alder buckthorn

A deciduous shrub, the bark of which contains anthraquinones; it has laxative activity and has been used internally by herbalists for constipation, and topically for minor cuts.
Toxicity Prolonged use may evoke a “lazy bowel” syndrome; it should not be used in patients with colitis, haemorrhoids, or gastric ulcers, or in pregnancy or during nursing.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

buck·thorn

(bŭk'thōrn)
Shrub or tree offamily Rhamnaceae, Karwinskia humbold tiana, commonly called coyotillo or tullidora. Found in arid southwestern U.S. environments; contains a highly potent neurotoxin.
See also: polyneuropathy
Synonym(s): common buckthorn, waythorn.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
In woodlands invaded by European buckthorn, Pail Vitt of the Chicago Botanic Garden finds dramatic stunting and compromised reproduction in a rare native wildflower, the dog violet (Viola conspersa).
Processes affecting the success of European buckthorn (Rhamnus cathartica) in a fragmented landscape.
In North America, we are over-run by exotic invasive species such as purple loose-strife, European buckthorn and Kentucky bluegrass that displace natives and upset the functioning of biotic communities or ecosystems.

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