Saint John's wort

Saint John's wort

a. any of numerous shrubs or herbaceous plants of the temperate genus Hypericum, such as H. perforatum, having yellow flowers and glandular leaves: family Hypericaceae

b. a preparation of this plant often used to treat mild depression

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Saint John's wort

[sānt ′jänz ‚wȯrt]

(pharmacology)

Hypericum perforatum. A herbacious perennial that has been used for millennia for its many medicinal properties, including wound healing and treatment of kidney and lung ailments, insomnia, and depression.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.