Definition

Noun: * A shrubby tree (Rhamnus purshiana) native to the Pacific coast of North America, from which the medicinal laxative bark known as cascara sagrada is obtained.

Usage

• The term "Rhamnus purshianus" is the scientific (Latin) name for a specific species of tree. It is used primarily in botanical, medical, and pharmacological contexts to precisely identify the source plant of cascara sagrada.
• Example: The dried bark of has been used for centuries as a herbal remedy.

Advanced Usage

• In botanical taxonomy, the name is often written in italics, with the genus () capitalized and the specific epithet () in lowercase.
• The species name "purshianus" honors the German-American botanist Frederick Traugott Pursh.

Variants and Related Words

• Cascara (n): A common short form for "cascara sagrada," the dried bark used medicinally.
• Cascara sagrada (n): The Spanish name ("sacred bark") for the dried bark of , used as a stimulant laxative.
• Buckthorn (n): The common name for trees and shrubs in the genus .
• Chittam bark (n): Another historical name for the medicinal bark.

Synonyms

• Cascara buckthorn
• Bearberry (Note: This common name can cause confusion with other plants, such as ).
• Chittamwood

Noun

1. shrubby tree of the Pacific coast of the United States; yields cascara sagrada