Black Pepper (Piper nigrum) vs White Willow (Salix alba)

Black Pepper (Piper nigrum)

White Willow (Salix alba)

About

Black pepper is a perennial woody climbing vine growing to about 16 feet, with large oval leaves, spikes of small white flowers, and clusters of small round fruits that ripen from green to red. Native to southwestern India and now cultivated in tropical areas worldwide, the fruit is harvested from plants that are at least three years old. Different processing methods yield green, black, red, and white peppercorns, each with distinct flavors and uses. Cultivated as both a spice and medicine since ancient times, pepper was such a prized commodity in world trade that Attila the Hun reportedly demanded 3,000 pounds of it as ransom during his siege of Rome in 408 CE.

Willow (Salix spp., especially S. alba) is a deciduous tree, sometimes up to 80 ft (25 m), with long, slender leaves and catkins in spring. The bark, which is high in salicin, was the original source of salicylic acid and a forerunner to aspirin. Willow bark has been used for thousands of years as a remedy for fevers and pain; MSK says a few studies suggest it may help back pain, but studies of osteoarthritis are mixed.

Safety & precautions

Large doses can cause gastrointestinal irritation in some individuals. Do not take the essential oil internally without professional supervision. Concentrated piperine supplements differ from pepper used as a kitchen spice; ask a pharmacist before combining one with any prescription medicine.

Allergic to Aspirin: Avoid use. Digestive Weakness or Ulcers: Willow can irritate the gut in large doses. Pregnancy & Nursing: Not recommended without professional supervision. Children: MSK says children should not be given willow bark because of the risk of Reye syndrome.

Safety text above is printed in full and is never abbreviated. For each plant’s complete precautions, drug and food interactions and preparation notes, open its own page - both are free.