Prickly ash, Zanthoxylum clava-herculis, Toothache tree, Tingle tongue

Southern prickly ash botanically called Zanthoxylum clava-herculis has other common names such as Toothache tree, Tingle tongue, Hercules’ club, Pepperwood, Hercules-club prickly ash, Prickly Ash, Southern Prickly-ash, Fresno Espinosa del Sur, Prickly Ash, Sea Ash, Prickly Yellow Wood, Toothache Tree, Xanthoxylum, Zanthoxylum clava-herculis and Zanthoxylum. Southern Prickly Ash belongs to the genus which consists of about 250 species of spiny, evergreen or deciduous trees and shrubs and usually occurs in subtropical and warm temperate regions worldwide. Many species are grown in various parts of the world for medicinal, wood, and culinary purposes. The tree of Southern Prickly Ash grows up to 10 to 17 m tall. It bears the leaves which are pinnately divided and flowers are small and yellow to green which is then followed by tiny black fruits growing in clusters. It prefers sandy soils and its habitats include pine barens, dry to mesic dunes, woodlands, and sandhills.

Facts of Southern Prickly Ash

Name Southern Prickly Ash
Scientific Name Zanthoxylum clava-herculis
Common/English Name Toothache tree, Tingle tongue, Hercules’ club, Pepperwood, Percules-club pricklyash, Prickly Ash, Southern Prickly-ash, Frêne Épineux Américain, Fresno Espinoso del Sur, Frêne Épineux du Sud, Prickly Ash, Sea Ash, Prickly Yellow Wood, Toothache Tree, Xanthoxylum, Zanthoxylum clava-herculis, Zanthoxylum
Soil Well-drained
Plant Size 10 to 17 m tall
Leaf Glabrous, leathery, pinnately compound, 20 to 30 cm long
Flowering Season Mid-spring
Flower Dioecious, small, white, 6 to 8 mm diameter
Fruit shape & size 6 mm diameter
Plant parts used Bark, berry
Seed Black

Southern Prickly Ash Scientific Classification

Scientific Name: Zanthoxylum clava-herculis

Rank Scientific Name & (Common Name)
Kingdom Plantae (Plants)
Subkingdom Viridiplantae
Infrakingdom Streptophyta  (Land plants)
Superdivision Embryophyta
Division Tracheophyta  (Vascular plants, tracheophytes)
Class Magnoliopsida
Subclass Rosidae
Order Sapindales
Family Rutaceae  (Rues, rutacées)
Genus Zanthoxylum L. (Pricklyash)
Species Zanthoxylum clava-herculis L. (Hercules-club, Hercules-club pricklyash, Hercules’ club)
Synonyms
  • Fagara caroliniana (Lam.) Engl.
  • Fagara clava-herculis Small
  • Fagara clava-herculis var. fruticosa Sarg.
  • Fagara fraxinifolia (Walt.) Lam.
  • Kampmannia fraxinifolium (Walt.) Rafin.
  • Pseudopetalon glandulosum Rafin.
  • Pseudopetalon tricarpum Rafin.
  • Xanthophyllon clava-herculis (L.) St. Lag.
  • Zanthoxylum alveolatum Shuttl.
  • Zanthoxylum alveolatum Shuttl. ex S. Wats.
  • Zanthoxylum aromaticum Willd.
  • Zanthoxylum carolinianum Lam.
  • Zanthoxylum catesbianum Rafin.
  • Zanthoxylum clava-herculis subsp. clava-herculis
  • Zanthoxylum clavatum St. Lag.
  • Zanthoxylum coriaceum Wright
  • Zanthoxylum coriaceum Wright ex A. Gray
  • Zanthoxylum digynum Engelm.
  • Zanthoxylum digynum Engelm. ex A. Gray
  • Zanthoxylum fraxinifolium Walter
  • Zanthoxylum hidalgense Lundell
  • Zanthoxylum macrophyllum Nutt.
  • Zanthoxylum tricarpum Michx.

Prickly ashes possess chelerythrine which is a benzophenanthridine alkaloid and effective anti-inflammatory and anti-microbial activity. Native Americans use it to ease pain of rheumatism and toothache. The oil extracted from herb has xanthoxylin which provides stimulating, cleansing, antirheumatic and diaphoretic properties. It is used to treat various disorders such as painful throats, upset stomachs, skin infections and throbbing muscles. Moreover, the bark of Prickly ash is used to promote saliva secretion and treat various health ailments. In the end of 19th century, eclectic doctors use it as a medication for digestive problems and strengthen the nervous system, and also cured cholera. Herbalists used the bark to cure rheumatic problems and improve the body’s ability to counteract various physical problems. North American people chew both berries and bark to alleviate toothaches and rheumatism. Mesquakie used leaves, berries, the bark of root, and bark of trunk. Berries and bark possess strong expectorants which make it syrup for cough, cure for tuberculosis, and hemorrhages.

Plant

Southern prickly ash is a shrub or spiny tree which is inherent to the Southeastern United States. This spiny tree grows to the height of 10 to 17 meters with distinctive spined thick and corky lumps which are 2 to 3 cm long on the bark. It bears leathery and glabrous leaves which are pinnately compound and measures 20 to 30 cm long. It has 7 to 19 leaflets and each leaflet measures about 4 to 5 cm long. Flowers are dioecious, small and white in color with a diameter 6 to 8 mm. Fruits is two valved capsule that measures 6 mm in diameter having a rough surface. It has several small black seeds. The tree requires abundant water and sunlight.

Traditional uses

  • It is useful to treat cramps, chronic rheumatic conditions, intermittent claudication and rheumatic symptoms.
  • The berries are useful for circulatory disorders.
  • When the bark and leaves are chewed, it causes numbness of mouth, tongue and teeth which provides relief from toothache.
  • Fruits possess stimulant, diaphoretic properties and is used as a tonic for stomach and digestive ailments.
  • It is useful for ague, fevers and poor circulation.
  • Bark and roots are used to comfort pain due to toothache.
  • Chew the bark to promote copious salivation.
  • Rub fruit on skin such as mouth or lips to produce temporary sensation loss.
  • The tincture or tea prepared from bark is used to treat dyspepsia, rheumatism, dysentery, kidney and heart problems.
  • Consume tea prepared from inner bark for treating itchy skin.
  • In United States, it is used for typhoid, chronic rheumatism, impurity of blood and skin diseases.
  • It is used as a tonic for cramps, colic, lethargy and cholera.
  • Powdered bark is used to heal the wounds.
  • Southern prickly ash is helpful for blood circulation problems in fingers and legs, menstrual cramps, sores, toothache, ongoing joint pain and ulcers.
  • Boil the inner bark with root of sarsaparilla and drink it to gain strength during illness.
  • Bark was used by Comanches to treat sore throat, fever and toothache.
  • In 19th century, it is used to stimulate circulatory system and cure arthritis.
  • In Ayurvedic medicine, it is used for headache, toothache, ear and eye conditions, colic, dyspeptic symptoms, fever, diarrhea, worm infestation, asthma, coughs, fever, leprosy and paralysis.
  • The tincture helps to stimulate blood flow to stiff and painful joints and promotes supply of nutrients and oxygen to the areas and eliminates waste products.
  • Combine the decoction with ginger which promotes circulation.
  • It provides relief from gas, diarrhea and tones digestive health.
  • Apply it topically to chronic pelvic inflammatory disease and leg ulcers.
  • In South Africa, it is used as a treatment for rheumatic conditions.
  • Use it internally to heal varicose eczema and skin ulcers.

Precautions   

  • It lowers the absorption of gut iron.
  • It might cause bruising, sun sensitivity and bleeding.
  • It could interfere with cardiac glycoside therapy and blood clotting drugs.
  • It starts menstrual period and harm the pregnancy so, it should not be used by pregnant women.
  • Avoid by breast-feeding women because it causes colic in nursing infant.
  • Southern Prickly Ash might affect liver.
  • Overdoses causes increase cardiac function, salivation and elevation of blood pressure.
  • If used internally, it causes inflammatory stomach conditions.

 


References