Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture

Biological Activity Antiencephalitic

Select a Results View:

Download these results as:
CSV
XLSX
List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
ASCORBIC-ACID Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.
CARAN-3BETA-OL Economic & Medicinal Plant Research, 5: 195.
GOSSYPOL *
HAINANOLIDE *
QUERCETIN Economic & Medicinal Plant Research, 5: 199.
TANNIC-ACID Vlietinck, A.J. and Dommisse, R.A. eds. 1985. Advances in Medicinal Plant Research. Wiss. Verlag. Stuttgart.
Download these results as:
CSV
XLSX
List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Helianthus annuus Sunflower; Girasol 2 1, 240
Helianthus tuberosus Jerusalem Artichoke 1 306
Hibiscus rosa-sinensis Chinese hibiscus; Shoe-flower 2 810
Hibiscus sabdariffa Roselle; Indian Sorrel; Jamaica Sorrel; Kharkadi; Red Sorrel; Sorrel; Malventee (Ger.); Rosella (Ger.); Acedera de Guinea (Sp.); Rosa de Jamaica (Sp.); Sereni (Sp.) 1 43, 450
Hippophae rhamnoides Sallow Thorn; Sea Buckthorn; Yellow Spine 3 52, 200
Holarrhena pubescens Tellicherry Bark; Zhi Xie Mu; Conessi; Kurchi 1 0
Hordeum vulgare Barley; Barleygrass 1 6, 600
Houttuynia cordata Fishwort; Dokudami; Yu Xing Cao 1 0
Humulus lupulus Hops 2 3, 564
Hydrangea arborescens Smooth Hydrangea; Hydrangea 2 0
Hydrastis canadensis Goldenseal 1 681
Hylocereus guatemalensis Guatemala Cereus; Nopalito De Guatemala 1 1, 030
Hylocereus undatus Night-Blooming Cereus; Nopalito De Noche; Strawberry Pear; Belle-of-the-Night; Queen-of-the-Night 1 2, 575
Hypericum perforatum Common St. Johnswort; Hypericum; Klamath Weed; St. John's-wort; Goatweed 2 113, 557.5
Inga edulis Guaba; Icecream Bean 1 710
Inula helenium Elecampane 2 20
Ipomoea aquatica Swamp Cabbage; Water Spinach 1 14, 600
Ipomoea batatas Sweet Potato 2 5, 420
Iris x germanica Orris 1 9, 930
Isatis tinctoria Dyer's Woad 1 0