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Veratrum viride

Common name:	Indian Poke	Family:	Melanthiaceae
Author:	Aiton.	Botanical references:	200
Synonyms:
Known Hazards:	All parts of the plant are highly poisonous[1, 4, 19, 62, 65]. After the plant dies down in the autumn and has been frosted, the toxins decrease and the plant becomes harmless to animals[212].
Range:	Eastern N. America - New England to Georgia, Tennessee and Wisconsin.
Habitat:	Swamps, moist meadows and low ground[21].
Edibility Rating (1-5):	1	Medicinal Rating (1-5):	2

Other Possible Synonyms:	From various places across the web, may not be correct. See below.
	V. eschscholtzianum[B,P] V. eschscholtzii[B,G,P] V. eschscholtzii var. incriminatum[B,P] V. lobelianum var. eschscholtzianum[G] V. viride ssp. eschscholtzii[B,P] V. viride var. eschscholtzii[B,P]
Other Common Names:	From various places around the Web, may not be correct. See below.
	American False Hellebore [P,B], American Hellebore [H,E], American White Hellebore [L], False Hellebore [E], Green Hellebore [H], Hellebore,American [E], Hellebore,Green [E], Indian Poke [H,L,E], Itch-weed [H], Swamp Hellebore [H], White Hellebore [E], Yesil Copleme [E],
Epithets:	From a Dictionary of Botanical Epithets
	vera = true; viride = green;
Other Range Info:	From the Ethnobotany Database
	Canada(Kwakiutl); Turkey; Us; Us(Amerindian); Us(Appalachia); Us(Colonial); Us(Flathead)

Physical Characteristics

Perennial growing to 2m. It is hardy to zone 3. It is in flower from July to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees, flies and Lepidoptera (Moths & Butterflies). We rate it 1/5 for edibility and 2/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils. The plant prefers acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It requires moist or wet soil.

Habitats and Possible Locations

Bog Garden, Woodland, Sunny Edge, Dappled Shade.

Edible Uses

One report says that the leaves have been used in soups[257]. The plant is highly toxic, so this use is probably best avoided[K].

Medicinal Uses

Disclaimer

Analgesic; Diaphoretic; Emetic; Expectorant; Febrifuge; Hypotensive; Narcotic; Sedative.

Indian poke is a highly toxic plant that was widely employed medicinally by several native North American Indian tribes who used it mainly externally in the treatment of wounds, pain etc[257]. It is rarely used in modern herbalism, though it is of potential interest because it contains steroidal and other alkaloids and chelidonic acid. Some of these alkaloids lower blood pressure and dilate the peripheral vessels - they have, for example, been used in conventional medicine to treat high blood pressure and rapid heart beat[207, 212, 254].
Any use of this plant should be carried out with great caution and preferably only under the supervision of a qualified practitioner[21]. Even when applied externally to unbroken skin it has been known to cause side-effects[254]. See also the notes above on toxicity
The root is analgesic, diaphoretic, emetic. expectorant, febrifuge, narcotic and sedative[4, 21, 257]. It has been used in the treatment of acute cases of pneumonia, peritonitis and threatened apoplexy[244]. A decoction of the root has been used in the treatment of chronic coughs and constipation[257]. A portion of the root has been chewed, or a decoction used, in the treatment of stomach pain[257]. The roots are harvested in the autumn and can be dried for later use[254].
The root has been used to make a skin wash and compresses for bruises, sprains and fractures[257]. The powdered root has been applied as a healing agent to wounds[207] and as a delousing agent[254].
The stems have been scraped and the powder snuffed to induce sneezing[257].
An infusion of the leaves has been used as a wash to treat aches and pains[257].
The plant is used in homeopathic preparations to slow the heart rate[254].

Other Uses

Cleanser; Fibre; Insecticide.

The dried and powdered root is used as an insecticide and a parasiticide[46, 61, 212]. It is also effective against caterpillars and mammals so great caution is advised[1, 19, 20].
The roots have been grated, then added to the laundry water and used to clean clothing[257].
A fibre obtained from the stem is used for weaving wallets etc[99].

Cultivation details

Requires a deep fertile moisture retentive humus-rich soil[200]. Succeeds in full sun if the soil does not dry out but prefers a position in semi-shade[200]. Dislikes dry soils, preferring to grow in a bog garden[42]. Grows best in a cool woodland garden or a north facing border[42].
Members of this genus are rarely if ever troubled by browsing deer[233].
Plants are long-lived and can be left in the same position for years without attention[233].
In some N. American Indian tribes, following the death of a chief, all the young aspirants to be chief were given a drink of this toxic plant and the person least affected was deemed to be the strongest and therefore made chief[200].

Propagation

Unless stored in damp sand at around 4°c the seed has a short viability[200]. Where possible it is best to sow the seed in a lightly shaded position in the greenhouse as soon as it is ripe[200]. Stored seed needs to be stratified but can be very slow to germinate. Germination can be erratic even for seed sown when it was fresh, it usually takes place within 3 - 12 months at 15°c but can be much longer[200]. The plant produces just one seedleaf in its first year, this forms an over-wintering bulb. It takes up to 10 years for the plant to reach maturity[200]. Sow the seed thinly so there is no need to thin or transplant them, and grow the seedlings on undisturbed in the pot for their first two years of growth. Apply a liquid feed at intervals through the growing season to ensure the plants do not become nutrient deficient. At the end of the second year plant out the dormant plants into individual pots and grow them on in light shade in the greenhouse for a further year or two before planting them out into their permanent positions in late spring or early summer.
Division in March/April or in October. Establish the plants in pots in a shaded frame before planting them out[200]. Division is best carried out in the autumn because the plants come into growth very early in the spring[233].
Root cuttings, 6mm long with a bud, rooted in a sandy soil in a cold frame[200].

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

Web References

Details of Medicinal Uses, Habitats, etc. in M. Grieve A Modern Herbal (1931) [4]
[H] Details of Scandanavian and European Common names in Henriette's names database
[E] Ethnobotany Data (common names, uses, countries) from the Ethnobotany Database.
[V] Images from the Vascular Plant Image Gallery of the Texas A&M Bioinformatics Working Group.
[B] Data (Latin & Common names, other references) from the BONAP's Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands.
[S] Image from the Southwest School of Botanical Medicine
[PHARM] Phytochemical Data (common names, uses, countries) from Dr Duke's Phytochemical Database.
[G] Data (Common Names, Uses, Distribution) from the USDA/ARS NPGS's GRIN taxonomic database.
[C] Taxon data. from the CalFlora database.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.
[S] Illustration from the Southwest School of Botanical Medicine
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[K] Ken Fern
Notes from observations, tasting etc at Plants For A Future and on field trips.

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).

[4] Grieve. A Modern Herbal. Penguin 1984 ISBN 0-14-046-440-9
Not so modern (1930's?) but lots of information, mainly temperate plants.

[19] Stary. F. Poisonous Plants. Hamlyn 1983 ISBN 0-600-35666-3
Not very comprehensive, but easy reading.

[20] Riotte. L. Companion Planting for Successful Gardening. Garden Way, Vermont, USA. 1978 ISBN 0-88266-064-0
Fairly good.

[21] Lust. J. The Herb Book. Bantam books 1983 ISBN 0-553-23827-2
Lots of information tightly crammed into a fairly small book.

[42] Grey. C. H. Hardy Bulbs. Williams & Norgate. 1938
Rather dated now, but an immense work on bulbs for temperate zones and how to grow them. Three large volumes.

[46] Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim 1959
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.

[61] Usher. G. A Dictionary of Plants Used by Man. Constable 1974 ISBN 0094579202
Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.

[62] Elias. T. and Dykeman. P. A Field Guide to N. American Edible Wild Plants. Van Nostrand Reinhold 1982 ISBN 0442222009
Very readable.

[65] Frohne. D. and Pfänder. J. A Colour Atlas of Poisonous Plants. Wolfe 1984 ISBN 0723408394
Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.

[99] Turner. N. J. Plants in British Columbian Indian Technology. British Columbia Provincial Museum 1979 ISBN 0-7718-8117-7
Excellent and readable guide.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

[207] Coffey. T. The History and Folklore of North American Wild Flowers. Facts on File. 1993 ISBN 0-8160-2624-6
A nice read, lots of information on plant uses.

[212] Craighead. J., Craighead. F. and Davis. R. A Field Guide to Rocky Mountain Wildflowers The Riverside Press 1963 ISBN 63-7093
Excellent little pocket guide to the area, covering 590 species and often giving details of their uses.

[233] Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. 1990 ISBN 0 460 86048 8
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.

[244] Phillips. R. & Foy. N. Herbs Pan Books Ltd. London. 1990 ISBN 0-330-30725-8
Deals with all types of herbs including medicinal, culinary, scented and dye plants. Excellent photographs with quite good information on each plant.

[254] Chevallier. A. The Encyclopedia of Medicinal Plants Dorling Kindersley. London 1996 ISBN 9-780751-303148
An excellent guide to over 500 of the more well known medicinal herbs from around the world.

[257] Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998 ISBN 0-88192-453-9
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.

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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
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