1A spiny North American shrub or tree with prickly branches and bark that can be used medicinally.See also Hercules' club
- ‘Also fairly common are bluejack oak, netleaf hackberry, honey mesquite, and prickly ash.’
- ‘The tropical prickly ash has a temperate equivalent called the toothache tree.’
- ‘Tropical plants here include two species of wild coffee, pigeon berry or rouge-plant, prickly ash, marlberry, and colicwood.’
- ‘Aggressive planting of hawthorn, pyracantha, creeping juniper, holly, Chinese jujube, roses, blackthorn or prickly ash will help deter criminals.’
- 1.1[mass noun] A medicinal preparation made from the bark of the prickly ash.
- ‘The historic use of prickly ash includes it as a medicine for intermittent claudication, Raynaud's disease, peripheral vascular insufficiency and muscle cramps.’
- ‘Other general herbs to help support digestion and circulation are prickly ash which supports peripheral circulation, particularly a foggy brain, and rosemary similarly.’
- ‘Northern prickly ash, Zanthoxylum americanum, is a traditional phytomedicine used by North American First Nations Peoples as a topical agent for the treatment of skin infections including those caused by pathogenic fungi.’
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